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Journal articles on the topic 'Hydroxy Salicylic Acids'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Kuzma, Mónika, Nikoletta Kovács, Lilla Sziva, Gábor Maász, Péter Avar, and Pál Perjési. "Oxidation of Hydroxy- and Dihydroxybenzoic Acids Under the Udenfriend's Conditions. An HPLC Study." Open Medicinal Chemistry Journal 12, no. 1 (2018): 13–22. http://dx.doi.org/10.2174/1874104501812010013.

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Background:Non-enzymatic hydroxylation of aromatic compounds to the respective phenolic derivatives is a possible metabolic pathway of xenobiotics. The formed metabolites can undergo consecutive oxidative reactions with free radicals to form potential toxic molecules.Objective:Development of HPLC methods to separate, identify and quantitate the main products formed from salicylic acid, 2,3-dihydroxybenzoic acid and 2,5-dihydroxybenzoic acid underin vitrohydroxylation conditions (Udenfriend's system).Method:An RP-HPLC-UV-Vis method was developed to separate salicylic acid and isomeric dihydroxy

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2

Pechinskii, S. V., A. G. Kuregyan, and E. T. Oganesyan. "Regioselective synthesis of quercetin and myricetin derivatives." Журнал общей химии 93, no. 2 (2023): 179–87. http://dx.doi.org/10.31857/s0044460x23020038.

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A regioselective method for the synthesis of esters of quercetin and myricetin at the hydroxy group in the 3 position was developed. As acids participating in the esterification reaction, 2-hydroxybenzoic (salicylic), 4-hydroxybenzoic, 2,6-dihydroxybenzoic, 3,4-dihydroxybenzoic (procatechuic), 3,4,5-trihydroxybenzoic (gallic) acids were used. A new series of quercetin and myricetin esters were obtained.

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3

A., SYAMAL, and KUMAR D. "Bromate-Bromide Mixture as a Titrimetric Reagent for the Determination of some ortho-Hydroxyaldehydes, Acids, Hydrazides, Schiff Bases and their Metal Complexes." Journal of Indian Chemical Society Vol. 65, Feb 1988 (1988): 112–16. https://doi.org/10.5281/zenodo.6035200.

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Department of Chemistry, Regional Engineering College, Kukshetra-182 119 Department of Applied Sciences and Humanities, Kurukshetra University, Kurukshetra-192 119 <em>Manuscript received 28 January 1982, messed 18 January 1985, accepted 11 September 1985</em> The quantitative determination of salicylaldehyde, 5-chloro-, 5-bromo-, 5-nitro-, 5-methoxy-, 5-hydroxy-, 4-methoxy-, 4-hydroxy-, 3-ethoxy-, 3-hydroxy and 3,5-dichloro-salicylaldehydes, and 2-hydroxy-1-naphthaldehyde, salicylic acid, 5-chloro-, 5-bromo-, 5-nitro-, 5-hydroxy-, 4-hydroxy-, 3-hydroxy-, and 3,5-dichlorosalicylic ac

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4

Saxena, Vishal, and Krishana Yadav. "Glycolic Acid, Lactic Acid, Mandelic Acid, Salicylic Acid, Citric Acid, Gluconolactone: Skin Exfoliators in Combination Therapy of Acne Vulgaris." International Journal of Research in Engineering, Science and Management 3, no. 10 (2020): 54–55. http://dx.doi.org/10.47607/ijresm.2020.334.

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Facial acne are a recurring issue in most of the population and can cause disturbing skin issues. A combination of Alpha-hydroxy acids, Beta-hydroxy-acids and Poly-hydroxy acids has become popular for treating acne vulgaris in last few years. The main objective of this research study is to evaluate the efficacy & safety of combination of these acids in the treatment of acne vulgaris. The study was conducted on 12 volunteers having mild to moderate to severe acne. They were divided into 3 groups according to the severity of their facial acne. Members of each group were treated with a series

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5

Krzaczek, Tadeusz, Anna Bogucka-Kocka, and Renata Śnieżko. "The phenolic acids of some species of the Oenothera L. genus." Acta Societatis Botanicorum Poloniae 64, no. 1 (2014): 41–44. http://dx.doi.org/10.5586/asbp.1995.007.

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The occurence and approximative quantitative proportions of the phenolic acids in four species of the <i>Oenothera</i> L. genus was determined by the method of TLC and HPLC. In all species of <i>Oenothera</i> L. genus the permanent occurrence of acids: 2-hydroxy-4-metoxybenzoic, salicylic, ferulic, syringic, vanillic, p-coumaric, p-hydroxybenzoic, p-hydroxyphenylacetic, γ-rezorcil, gentysic, protocatechuic, caffeic and gallic has been confirmed. Whereas the other phenolic acids: o-coumaric, o-hydroxyphenylacetic and pirocatechuic were found in some species of the <i&

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6

Sergeev, E. E., Yu A. Rodikova, and E. G. Zhizhina. "Methods for the synthesis of salicylic acid. A review." Kataliz v promyshlennosti 23, no. 6 (2023): 52–69. http://dx.doi.org/10.18412/1816-0387-2023-6-52-69.

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The review considers and analyzes methods for the synthesis of salicylic acid based on phenol, ortho-cresol, and benzoic acid reported in scientific and technical literature. The current trends in the progress of the “Kolbe–Schmitt process”-oriented technology (obtaining aromatic and heteroaromatic hydroxy acids by the action of CO2 on alkali metal phenolates) are shown. Data are presented on the effect of catalytic system composition and conditions of benzoic acid hydroxylation on the achieved values of conversion, selectivity, and purity of the product. The review can be useful in choosing a

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7

Miltojevic, Ana, and Niko Radulovic. "Complete assignment of 1H- and 13C-NMR spectra of anthranilic acid and its hydroxy derivatives and salicylic acid and its amino derivatives." Facta universitatis - series: Physics, Chemistry and Technology 13, no. 2 (2015): 121–32. http://dx.doi.org/10.2298/fupct1502121m.

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We report on the detailed NMR spectral analyses of amino- or/and hydroxy-substituted benzoic acids: anthranilic (AA), 3-hydroxyanthranilic (3-HAA), 5-hydroxyanthranilic (5-HAA), salicylic (SA), 4-aminosalicylic (4-ASA) and 5-aminosalicylic (5-ASA) acids. According to a literature survey, there are limited, unassigned or even incorrectly assigned spectral data to these benzoic acid derivatives. In order to amend the situation, a complete assignment of 1H- and 13C-NMR spectra of these compounds, recorded in perdeuteriodimethyl sulfoxide (DMSO-d6), based on a combination of 1D- and 2D-NMR experim

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8

Adamczak, Artur, Marcin Ożarowski, and Tomasz M. Karpiński. "Antibacterial Activity of Some Flavonoids and Organic Acids Widely Distributed in Plants." Journal of Clinical Medicine 9, no. 1 (2019): 109. http://dx.doi.org/10.3390/jcm9010109.

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Among natural substances widespread in fruits, vegetables, spices, and medicinal plants, flavonoids and organic acids belong to the promising groups of bioactive compounds with strong antioxidant and anti-inflammatory properties. The aim of the present work was to evaluate the antibacterial activity of 13 common flavonoids (flavones, flavonols, flavanones) and 6 organic acids (aliphatic and aromatic acids). The minimal inhibitory concentrations (MICs) of selected plant substances were determined by the micro-dilution method using clinical strains of four species of pathogenic bacteria. All tes

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9

Vorobyev, Stepan, Olga Primerova, and Vladimir Koshelev. "Lactamomethylation of Phenols: Synthesis, In Silico Study of Reactivity and Possible Applications." Chemistry Proceedings 3, no. 1 (2020): 81. http://dx.doi.org/10.3390/ecsoc-24-08408.

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Lactamomethylation of phenols with various substituents was provided by pyrrolidone, valerolactam, caprolactam, and 4-phenylpyrrolidone derivatives. The structures of the target compounds were confirmed by IR and NMR study. The behavior of alkylphenols (2,4-di-tert-butyl- and thymol), diphenols (catechol and hydroquinone), formylphenol (vanillin), and hydroxybenzoic acids (salicylic and resorcylic) in this reaction was compared by quantum-chemical calculations. For several compounds, the energy of dissociation of the ArO-H bond was calculated by quantum-chemical method to reveal their possible

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10

Pekala, Karolina, Katarzyna Wawrzusiszyn, and Anna Bogucka-Kocka. "Phenolic substances in Ailanthus glandulosa Desf." Current Issues in Pharmacy and Medical Sciences 27, no. 2 (2014): 84–87. http://dx.doi.org/10.2478/cipms-2014-0019.

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Abstract The aim of this work was the isolation and identification of phenolic acids from fruit and leaves of Ailanthus glandulosa Desf. The methods used in the isolation and identification of the compounds were: isolation of phenolic acids modified by Ibrahim and Towers, acidic and alkaline hydrolysis by Schmidtlein and Herrmann and identification of phenolic acids in the isolated fraction of two-dimensional thin layer chromatography (TLC) on cellulose plates. In the course of the study, the presence of phenolic acids in leaves and fruit of Ailanthus glandulosa Desf was confirmed. Overall, pr

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11

Szwajgier, Dominik. "Anticholinesterase Activity of Phenolic Acids and their Derivatives." Zeitschrift für Naturforschung C 68, no. 3-4 (2013): 125–32. http://dx.doi.org/10.1515/znc-2013-3-408.

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The ability of 36 phenolic acids and their derivatives to inhibit acetyl- and butyrylcholinesterase was studied. The most efficient acetylcholine inhibitors were: carnosic acid = gentisic acid > 3-hydroxy-4-methoxycinnamic acid = ethyl ferulate = ethyl vanillate = nordihydroguaiaretic acid > ethyl 4-hydroxybenzoate = methyl ferulate. The order of effectiveness towards butyrylcholinesterase was: carnosic acid > nordihydroguaiaretic acid = ethyl ferulate > salicylic acid > gentisic acid > rosmarinic acid = caftaric acid > homogentisic acid. The inhibitory activity was depend

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12

Shteinberg, Leon. "THE INFLUENCE OF THE CONCENTRATION OF CHLORINE-CONTAINING CONDENSING AGENTS IN THE SYNTHESIS OF CARBOXYLIC ACID ANILIDESТ". Ukrainian Chemistry Journal 89, № 5 (2023): 37–52. http://dx.doi.org/10.33609/2708-129x.89.05.2023.37-52.

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Chlorine-containing condensing agents (PCl3, TiCl4, SiCl4) are widely used in the synthesis of carboxylic acid arylamides by the reaction of arylamines with carboxylic acids in stoichiometric amounts, and often in excess (40–150 mol % relative to the latter). To find the optimal amount of the condensing agent used, the acylation of aniline with 3-hydroxy-2-naphthoic acid in boiling ortho-xylene was studied in the PCl3 concentration range of 0–10 mol % from 3-hydroxy-2-naphthoic acid. It has been established that phosphorus tri-chlorochloride plays the role of a condensing agent and a catalyst,

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13

Deng, Baojuan, Yajun Hou, Fei Wang, et al. "Highly selective separation of eucalyptus hemicellulose by salicylic acid treatment with both aromatic and hydroxy acids." Bioresource Technology 355 (July 2022): 127304. http://dx.doi.org/10.1016/j.biortech.2022.127304.

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14

SHARMA, SANGITA, and K. M. JOSHI. "SOLUTION STATE AND THERMODYNAMIC STUDIES ON BINARY COMPLEXES OF THE TH(IV) WITH SOME HYDROXY ACIDS." Latin American Applied Research - An international journal 45, no. 4 (2015): 279–84. http://dx.doi.org/10.52292/j.laar.2015.409.

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A Solution state study on complexation behavior of Th(IV) with hydroxy acids (malic acid, lactic acid, salicylic acid and mandelic acid) has been carried out using the Irving–Rossotti titration technique in aqueous media and mixed media at different temperatures and ionic strengths. The dissociation constant and stability constants (logβ) of the resulting complexes have been calculated with the Fortran IV program BEST using the method of least squares and considering the BESTFIT model. Species distribution curves of complexes have been plotted as function of pH using the SPEPLOT Fortran IV pro

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15

Deveryshetty, Jaigeeth, and Prashant S. Phale. "Biodegradation of phenanthrene by Pseudomonas sp. strain PPD: purification and characterization of 1-hydroxy-2-naphthoic acid dioxygenase." Microbiology 155, no. 9 (2009): 3083–91. http://dx.doi.org/10.1099/mic.0.030460-0.

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Pseudomonas sp. strain PPD can metabolize phenanthrene as the sole source of carbon and energy via the ‘phthalic acid’ route. The key enzyme, 1-hydroxy-2-naphthoic acid dioxygenase (1-HNDO, EC 1.13.11.38), was purified to homogeneity using a 3-hydroxy-2-naphthoic acid (3-H2NA)-affinity matrix. The enzyme was a homotetramer with a native molecular mass of 160 kDa and subunit molecular mass of ∼39 kDa. It required Fe(II) as the cofactor and was specific for 1-hydroxy-2-naphthoic acid (1-H2NA), with K m 13.5 μM and V max 114 μmol min−1 mg−1. 1-HNDO failed to show activity with gentisic acid, sali

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Tapan, Seal, Pillai Basundhara, and Chaudhuri Kausik. "Identification and Quantification of Phenolic Acids by HPLC, in Three Wild Edible Plants Viz. Viburnum foetidum, Houttuynia cordata and Perilla ocimoides Collected from North-Eastern Region in India." International Journal of Current Pharmaceutical Review and Research 7, no. 5 (2016): 267–74. https://doi.org/10.5281/zenodo.12680609.

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A reversed-phase high-performance liquid chromatographic method using photodiode array detector with gradient elutionhas been developed and validated for the estimation of free phenolic acids (gallic acid, protocatechuic acid, gentisic acid,chlorogenic acid, p-hydroxy benzoic acid, vanillic acid, caffeic acid, syringic acid, p-coumaric acid, ferulic acid, sinapicacid, salicylic acid and ellagic acid), in two different solvent extracts of Viburnum foetidum, Houttuynia cordata andPerilla ocimoides collected from North-eastern region in India . The chromatographic separation of phenolic acids was

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17

Kulkarni, Pramod. "Sulfanilic acid catalysed one‐pot three‐component Mannich reaction for synthesis of β‐amino ketones". Vietnam Journal of Chemistry 58, № 5 (2020): 675–87. http://dx.doi.org/10.1002/vjch.202000090.

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AbstractWe have reported sulfanilic acid as an exceedingly competent catalyst for one‐pot Mannich reaction to give β‐amino carbonyl compounds in good to excellent yield within a short reaction time. The various organic acids have screened; like gallic acid, 4‐hydroxy benzoic acid, 4‐amino benzoic acid, phenylacetic acid, chloroacetic acid, sulfosalicylic acid, sulfanilic acid, chloro benzoic acid, phthalic acid, salicylic acid, cinnamic acid, hippuric acid, 1‐naphthyl acetic acid, o‐amino benzoic acid, p‐TSA, succinic acid, malic acid, and among them sulfanilic acid is a suitable catalyst. The

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18

Măgerușan, Șoimița Emiliana, Gabriel Hancu, and Aura Rusu. "A Comprehensive Bibliographic Review Concerning the Efficacy of Organic Acids for Chemical Peels Treating Acne Vulgaris." Molecules 28, no. 20 (2023): 7219. http://dx.doi.org/10.3390/molecules28207219.

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Acne vulgaris stands out as the most prevalent skin disorder among teenagers and young adults, causing physical discomfort and considerable economic and psychological burdens on individuals and society. A wide range of topical and systemic therapies are available in acne treatment. Chemical peeling is a skin resurfacing technique designed to rebuild healthy skin using exfoliating substances, a simple and affordable process with various dermatological uses. Chemical peels, classified as superficial, medium, and deep, have been utilized for acne vulgaris and multiple other skin issues. In these

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19

Solanki, Urja B., B. P. Chauhan, Y. M. Shukla, and A. A. Sakure. "Phenol Profiling of Chilli (Capsicum annuum L.) leaves by LC-MS." Journal of Advances in Biology & Biotechnology 27, no. 7 (2024): 1150–58. http://dx.doi.org/10.9734/jabb/2024/v27i71074.

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A lab experiment was conducted at the Department of Biotechnology, Anand Agricultural University, Anand, Gujarat, during 2023. The study focused on phenol profiling of 28 genotypes of chilli along with ACCMS 1 (P1) and ACS 18-08 (P2) using LC-MS. Chilli leaf samples were collected three months after transplanting. A total of 20 phenolic acids were used as standards: salicylic acid, gallic acid, hydroquinone, esculin hydrate, pyrocatechol, methylumbelliferone, umbelliferon, quercetin, coumaric acid, caffeic acid, chlorogenic acid, ferulic acid, cinnamic acid, syringaldehyde, fraxetin, 4-hydroxy

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20

Suganya, Suresh, Kandasamy Saravanan, Ramakrishnan Jaganathan, and Poomani Kumaradhas. "Salt formation, hydrogen-bonding patterns and supramolecular architectures of acridine with salicylic and hippuric acid molecules." Acta Crystallographica Section C Structural Chemistry 77, no. 12 (2021): 790–99. http://dx.doi.org/10.1107/s2053229621011189.

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The intermolecular interactions and salt formation of acridine with 4-aminosalicylic acid, 5-chlorosalicylic acid and hippuric acid were investigated. The salts obtained were acridin-1-ium 4-aminosalicylate (4-amino-2-hydroxybenzoate), C13H10N+·C7H6NO3 − (I), acridin-1-ium 5-chlorosalicylate (5-chloro-2-hydroxybenzoate), C13H10N+·C7H4ClO3 − (II), and acridin-1-ium hippurate (2-benzamidoacetate) monohydrate, C13H10N+·C9H8NO3 −·H2O (III). Acridine is involved in strong intermolecular interactions with the hydroxy group of the three acids, enabling it to form supramolecular assemblies. Hirshfeld

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Dandela, Rambabu, Srinu Tothadi, Udaya Kiran Marelli, and Ashwini Nangia. "Systematic synthesis of a 6-component organic-salt alloy of naftopidil, and pentanary, quaternary and ternary multicomponent crystals." IUCrJ 5, no. 6 (2018): 816–22. http://dx.doi.org/10.1107/s2052252518014057.

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The single-crystal X-ray structure of a 6-component organic-salt alloy (hexanary) of naftopidil (1) (an active pharmaceutical ingredient) with benzoic acid (2) and four different hydroxy-substituted benzoic acids, i.e. salicylic acid (3), 2,3-dihydroxybenzoic acid (4), 2,4-dihydroxybenzoic acid (5) and 2,6-dihydroxybenzoic acid (6), is reported. The hexanary assembly originates from the observation that the binary salts of naftopidil with the above acids are isostructural. In addition to the 6-component solid, we also describe five 5-component, ten 4-component, and ten 3-component organic-salt

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22

Mohammad, Omar, Jude A. Onwudili, and Qingchun Yuan. "Potential Large-Scale CO2 Utilisation for Salicylic Acid Production via a Suspension-Based Kolbe–Schmitt Reaction in Toluene." Molecules 29, no. 11 (2024): 2527. http://dx.doi.org/10.3390/molecules29112527.

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Conversion of CO2 into organic chemicals offers a promising route for advancing the circularity of carbon capture, utilisation, and storage in line with the international 2050 Net Zero agenda. The widely known commercialised chemical fixation of CO2 into organic chemicals is the century-old Kolbe–Schmitt reaction, which carboxylates phenol (via sodium phenoxide) into salicylic acid. The carboxylation reaction is normally carried out between the gas–solid phases in a batch reactor. The mass and heat transfer limitations of such systems require rather long reaction times and a high pressure of C

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23

Coban, Tomris, Hannah Sykes, Shreedhar Kulkarni, Robert A. Lucas, Cameron Robertson, and Adam Le Gresley. "Using Nuclear Magnetic Resonance to Troubleshoot a Stability Issue in a Real-World Formulation Chassis—Application to Consumer Oral Healthcare." Pharmaceutics 16, no. 3 (2024): 320. http://dx.doi.org/10.3390/pharmaceutics16030320.

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With direct application to current and future consumer healthcare products, this research sheds light on the importance of packaging and its potential effects on both Active Pharmaceutical Ingredient (API) delivery and stability. Industrially sourced, proprietary experimental formulations (PEFs), specifically oral cleansers, based on salicylic acid and hydrogen peroxide, discolored over time at different rates, depending on packaging type used. This discoloration stemmed from an interplay of two factors, involving both spontaneous formulation degradation and the interaction of both degradants

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Bharti, Srivastava, and C. Chattopadhyaya M. "Electrometric and spectrophotometric determination of para-amino salicylic acid." Journal of Indian Chemical Society Vol. 83, Oct 2006 (2006): 1058–61. https://doi.org/10.5281/zenodo.5831408.

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Department of Chemistry, University of Allahabad, Allahabad-211 002, Uttar Pradesh. India <em>E-mail </em>: bharti_priyal4@rediffmail.com, mcc46@rediffmail.com <em>Manuscript received 29 May 2006. accepted 30 June 2006</em> <em>para</em>-Amino salicylic acid (4-amino-2-hydroxy benzoic acid) is useful in the treatment of tuberculosis. A new precipitate based heterogenous electrode has been developed for the electrometric determination of <em>\(para\)-\(amino\) </em>salicylic acid in solution. The characteristics of the electrode was studied.  

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Krunal, Wankhede* Nidhi Watane Diksha Bhakte Shubham Suryawanshi Dinesh Biyani Milind Umekar Rashmi Trivedi. "Formulation Strategies and Evaluation Techniques for Salicylic Acid-Based Moisturizing Creams: A Comprehensive Review." International Journal of Pharmaceutical Sciences 3, no. 5 (2025): 375–88. https://doi.org/10.5281/zenodo.15334304.

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A popular well-known beta-hydroxy acid with keratolytic, comedolytic, and anti-inflammatory qualities is salicylic acid also helps in exfoliation process, making it a significant active component in dermatological products that treat psoriasis, acne, and other hyperkeratotic skin disorders. However, because of its low solubility, sensitivity to pH, and propensity for skin irritation, including it into moisturizing cream compositions presents special hurdles. This article offers a thorough summary of the formulation techniques used to maximize the stability, effectiveness, and skin compatibilit

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Wantusiak, Paweł, and Bronisław Głód. "Application of UV detection in HPLC in the total antioxidant potential assay." Open Chemistry 10, no. 6 (2012): 1786–90. http://dx.doi.org/10.2478/s11532-012-0108-0.

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AbstractHPLC has been already used for the TAP estimation. Phenylalanine, salicylic, p-hydroxybenzoic (pHBA) or terephthalic (TPA) acids have been used as sensor compounds. Products of their reaction with the hydroxyl radicals, generated in the Fenton-like reaction, were analyzed using electrochemical or fluorescence detection. This paper describes the TAP assay based on the hydroxyl radicals reaction with pHBA, reversed-phase-HPLC separation and UV photometric detection. The elaborated assay has been used to evaluate TAP values of some apiculture products.

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Zhao, Mingzhu, Yawei Tian, and Xiaoming Zhao. "Thieme Chemistry Journals Awardees – Where Are They Now? Chiral Sulfinamide Ligands and Pd-Catalyzed Asymmetric Allylic Alkylations of Ethyl 2-Fluoroacetoacetate." Synlett 28, no. 14 (2017): 1801–6. http://dx.doi.org/10.1055/s-0036-1589033.

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New chiral sulfinamide ligands made from salicylic acids and chiral tert-butanesulfinamide was utilized in Pd-catalyzed asymmetric allylic substitutions of ethyl 2-fluoroacetoacetate, which afforded the fluorinated allyl products with up to 98% yield, 94% ee, and 2.2:1 dr. Both sulfoxide and hydroxyl group on the sulfanilamide ligands are crucial for enantiocontrol in the Pd-catalyzed allylic alkylations of ethyl 2-fluoroacetoacetate.

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Fischer, Daniel C., Marcos Kogan, and Jack Paxton. "Deterrency of Mexican Bean Beetle (Coleoptera: Coccinellidae) Feeding by Free Phenolic Acids." Journal of Entomological Science 25, no. 2 (1990): 230–38. http://dx.doi.org/10.18474/0749-8004-25.2.230.

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We investigated the role of simple phenolic acid precursors of isoflavonoid phytoalexins, as free compounds, in food selection by the Mexican bean beetle, Epilachna varivestis Mulsant, a pest of soybean, Glycine max Merrill, and other legumes. An aerosol spray method was developed to apply compounds in a uniform and reproducible manner to leaf surfaces of common bean, Phaseolus vulgaris L., a preferred host. Twenty-three compounds were tested in dual choice preference tests. Included were benzoic acid, cinnamic acid, simple phenolic acids (hydroxylated benzoic and cinnamic acids), and their me

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Phambu, Nsoki. "Adsorption of Carboxylic Acids on Submicrocrystalline Aluminum Hydroxides in Aqueous Solution. Part I: Qualitative Study by Infrared and Raman Spectroscopy." Applied Spectroscopy 56, no. 6 (2002): 756–61. http://dx.doi.org/10.1366/000370202760077496.

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Adsorption of acetic, oleic, benzoic, and salicylic acids on submicrocrystalline aluminum hydroxide samples is investigated in aqueous solutions. Experimental infrared and Raman spectroscopic data are analyzed to determine the reactivity of the monocoordinated hydroxyl groups located on the edge faces of bayerite or gibbsite crystals. Two key parameters were (1) the effect of concentration of aqueous solutions of the acids, and (2) the variation in specific surface areas of different samples of bayerite and gibbsite powders. Strong preferential adsorption to bayerite was observed over the whol

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Bondareva, Natalia A., Peotr P. Purygin, and Olga O. Isaeva. "Synthesis and biological activity of a number of salicylic acid esters." Butlerov Communications 60, no. 11 (2019): 93–97. http://dx.doi.org/10.37952/roi-jbc-01/19-60-11-93.

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Salicylic acid is currently of little use, but its derivatives are one of the most large-tonnage drugs in the world. However, the natural sources of salicylic acid cannot satisfy the needs for its preparations and therefore the acid and its derivatives are obtained exclusively by synthetic means. Derivatives of salicylic acid are of great interest, due to their high reactivity and widespread use in medical practice as anti-inflammatory, antipyretic, analgesic, antimicrobial, antiseptic and anti-tuberculosis drugs. Currently, there is a fairly large body of data on the synthesis, structure, and

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Carlos, de Melo Gonçalves Anderson, Silva Sousa Caio da, de Lima Alex Serafim, et al. "Salicylic acid and antitranspirant polymer mitigate the effects of water stress on the growth and yield of cowpea." Emirates Journal of Food and Agriculture 36 (March 22, 2024): 1–9. https://doi.org/10.3897/ejfa.2024.119548.

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Water stress can limit the growth and production of cowpea (Vigna unguiculata (L.) Walp.), necessitating the use of strategies that induce plant tolerance to mitigate its effects on the crop. This includes the application of salicylic acid (SA) and antitranspirant polymer (AP). The objective of this study was to evaluate the effect of SA and AP applications on the growth and production of cowpeas subjected to water stress. The experiment was conducted in field conditions at Sítio Boqueirão, Catolé do Rocha, Paraíba, Brazil. The experimental design used was randomized blocks, comprising 10 trea

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Bang, Hye-Jin, Heon Lee, Young-Kwon Park, et al. "Assessment of Degradation Behavior for Acetylsalicylic Acid Using a Plasma in Liquid Process." Catalysts 9, no. 11 (2019): 965. http://dx.doi.org/10.3390/catal9110965.

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Acetylsalicylic acid (ASA) is a pharmacologically active compound. In this study, ASA was decomposed effectively using a plasma in liquid phase process with hydrogen peroxide and TiO2 photocatalyst. Increasing the electrical power conditions (frequency, applied voltage, and pulse width) promoted plasma generation, which increased the rate of ASA decomposition. The added hydrogen peroxide increased the rate of ASA degradation, but injecting an excess decreased the degradation rate due to a scavenger effect. Although there was an initial increase in the decomposition efficiency by the addition o

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Mudarisova, Roza Khanifovna, Alina Failovna Sagitova, and Ol'ga Sergeyevna Kukovinets. "COMPLEXATION OF APPLE PECTIN, MODIFIED TO PHARMACOPHORE, WITH THE CATIONS MANGANESE (II) IN AQUEOUS SOLUTIONS." chemistry of plant raw material, no. 1 (March 5, 2020): 25–32. http://dx.doi.org/10.14258/jcprm.2020015161.

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Complex formation in systems containing manganese (II), natural pectin and/or pectin modified by organic pharmacophores (nicotine, salicylic, 5-aminosalicylic, anthranilic acids) was studied by spectral (UV-, IR-, NMR 13C spectroscopy), potentiometric and viscometric methods. Method isomolar series and the molar relationship defined by the molar composition and the range of stability of metal complexes: pectin + nicotinic acid > pectin + acid 5-aminosalicylic > pectin + anthranilic acid > pectin + salicylic acid > native pectin. It is shown that the stability constant of metal comp

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Voronin, Alexander P., Artem O. Surov, Andrei V. Churakov, and Mikhail V. Vener. "Supramolecular Organization in Salts of Riluzole with Dihydroxybenzoic Acids—The Key Role of the Mutual Arrangement of OH Groups." Pharmaceutics 15, no. 3 (2023): 878. http://dx.doi.org/10.3390/pharmaceutics15030878.

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Intermolecular interactions, in particular hydrogen bonds, play a key role in crystal engineering. The ability to form hydrogen bonds of various types and strengths causes competition between supramolecular synthons in pharmaceutical multicomponent crystals. In this work, we investigate the influence of positional isomerism on the packing arrangements and the network of hydrogen bonds in multicomponent crystals of the drug riluzole with hydroxyl derivatives of salicylic acid. The supramolecular organization of the riluzole salt containing 2,6-dihydroxybenzoic acid differs from that of the soli

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Nambiar, Vanisha S., Neha Sareen, Mammen Daniel, and Erick B. Gallego. "Flavonoids and phenolic acids from pearl millet (Pennisetum glaucum) based foods and their functional implications." Functional Foods in Health and Disease 2, no. 7 (2012): 251. http://dx.doi.org/10.31989/ffhd.v2i7.85.

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Background: Pearl millet (Pennisetum glaucum), considered a poor man’s cereal, may be a repository of dietary antioxidants, especially flavonoids and phenolic acids, which provide bioactive mechanisms to reduce free radical induced oxidative stress and probably play a role in the prevention of ageing and various diseases associated with oxidative stress, such as cancer, cardiovascular, and neurodegenerative diseases.Objective: The present study focused on the identification of individual flavonoids and phenolic acids from seven commercial varieties of pearl millet and five samples of pearl mil

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Stephen, A. D., S. M. Shankar, R. N. Devi, et al. "Evaluation of diflunisal a difluoro-derivative of salicylic acid as an inhibitor of human serum albumin using molecular docking tools." Journal of Environmental Biology 43, no. 4 (2022): 527–35. http://dx.doi.org/10.22438/jeb/43/4/mrn-3006.

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Aim: To evaluate the binding interaction of diflunisal at active site of Human Serum Albumin (HSA), an important enzyme responsible for osteoarthritis disease. Methodology: The gas phase molecule was optimized with B3LYP/6-311G** basis set, while a single point energy calculation was carried out for the molecule lifted from the active site. Bader’s theory of atoms in molecules (AIM) was used to determine the electron density and Laplacian of electron density. The protein was assigned with polar hydrogens and Kollman charges. Iterated local search procedure was performed during docking, during

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Vorobyev, Stepan V., Olga V. Primerova, Ludmila V. Ivanova, Vladimir D. Ryabov, and Vladimir N. Koshelev. "FACILE SYNTHESIS OF PHENOLIC DERIVATIVES, CONTAINIG LACTAMOMETHYL SUBSTITUENTS." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 62, no. 10 (2019): 40–48. http://dx.doi.org/10.6060/ivkkt.20196210.5930.

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In this work we suggest the new method for the synthesis of novel phenolic derivatives, containing lactamomethyl substituents. Oxidation processes of fuels and mineral oils lead to losing of their properties, so the search for new and effective inhibitors of these processes is very actuel. We suggest a facile system for lactamomethylation reaction. Heating in the water some of phenols (resorcinol, phloroglucinol, methylphloroglucinol, pyrogallol, salicylic, resorcilic and gallic acids) with N-hydroxymethyl derivatives of pyrrolidone, valerolactam, caprolactam and 4-phenylpyrrolidone in the pre

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Renkova, A. G., V. R. Khabibrakhmanova, A. V. Chasov, J. N. Valitova, E. I. Galeeva, and F. V. Minibayeva. "Changes in Composition and Content of Lipophilic Compounds in the Seedlings of <i>Triticum aestivum</i> L. Treated with Stress Phytohormones." Физиология растений 70, no. 1 (2023): 58–70. http://dx.doi.org/10.31857/s0015330322600322.

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Exposure of plants to biotic and abiotic stress agents causes changes in the composition and content of metabolites of different chemical nature, including lipophilic compounds. One of the ways to simulate a stress situation is plant treatment with exogenous phytohormones. This work deals with investigation of organ specificity of composition of lipophilic compounds and changes in their content in wheat Triticum aestivum L. seedlings treated with exogenous stress hormones: abscisic acid (ABA), salicylic acid (SA), and methyl jasmonate (MeJA). It was found that roots and leaves of wheat seedlin

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Ionin, Vladislav A., Yuriy N. Malyar, Valentina S. Borovkova, Dmitriy V. Zimonin, Roksana M. Gulieva, and Olga Yu Fetisova. "Inherited Structure Properties of Larch Arabinogalactan Affected via the TEMPO/NaBr/NaOCl Oxidative System." Polymers 16, no. 11 (2024): 1458. http://dx.doi.org/10.3390/polym16111458.

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Arabinogalactan (AG), extracted from larch wood, is a β-1,3-galactan backbone and β-1,6-galactan side chains with attached α-1-arabinofuranosyl and β-1-arabinopyranosyl residues. Although the structural characteristics of arabinogalactan II type have already been studied, its functionalization using 2,2,6,6-tetramethylpiperidin-1-oxyl (TEMPO) oxidation remains a promising avenue. In this study, the oxidation of AG, a neutral polysaccharide, was carried out using the TEMPO/NaBr/NaOCl system, resulting in polyuronides with improved functional properties. The oxidation of AG was controlled by ana

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Varagani, Tejaswini. "Hydroxy Acids: The Booming OTC Skincare Trend." June 9, 2021. https://doi.org/10.26452/ijcpms.v1i2.195.

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The following article emphasizes on the basics of hydroxy acids as a concept. Acid is often thought of as a substance as to which is not seen anywhere near the skin, but Hydroxy acids have been used in the skincare industry for a long time now, but the year 2020 had them come into the picture as a miraculous skincare product for all the traditionally occurring skin conditions like acne, hyperpigmentation, blackheads, etc., that being said it has quite a few side effects.  In the due course of the article, we see what are hydroxy acids, their classification, side effects, indication, and s

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Elham, Moniri, Ahmad Panahi Homayon, Izadi Ahmad, Mehdi Parvin Mohamad, and Rahimi Atyeh. "Effect of Boric Acid on a-Hydroxy Acids Compounds in Thin Layer Chromatography." International Journal of Chemical, Materials and Biomolecular Sciences 1.0, no. 6 (2008). https://doi.org/10.5281/zenodo.1328586.

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In this investigation Salicylic acid, Sulfosalicylic acid and Acetyl salicylic acid were chosen as a sample for thin layer chromatography (TLC) on silica gel plates. Bicarbonate buffer at different pH containing different amounts of boric acid was applied as mobile phase. Specific interaction of these substances with boric acid has effect on Rf in thin layer chromatography. Regular and similar trend was observed in variations of Rf for mentioned compounds in TLC by altering of percentages of boric acid in mobile phase in pH range of 8-10. Also effect of organic solvent, mixture of water/ organ

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Suerbaev, Khakim A., Mayliby K. Aldabergenov, and Nurbolat Zh Kudaibergenov. "Carboxylation of hydroxyarens with metal alkyl carbonates." Green Processing and Synthesis 4, no. 2 (2015). http://dx.doi.org/10.1515/gps-2014-0098.

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AbstractThe objective of this work was to investigate the possibility of using alkali metal salts of ethylcarbonic acid as a carboxylating reagent in phenol (naphthols) carboxylation and developing a new and simple method for the synthesis of hydroxybenzoic and hydroxynaphthoic acids having broad practical application. It was found that sodium ethyl carbonate and potassium ethyl carbonate can be successfully used as carboxylating agents in carboxylation of phenol and naphthols. For the first time, the effects of the gaseous medium (air, carbon dioxide, argon), pressure, temperature and reactio

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Köse, Dursun, and Birgül Zümreoglu-Karan. "Mixed-ligand complexes of boric acid with organic biomolecules." Chemical Papers 66, no. 1 (2012). http://dx.doi.org/10.2478/s11696-011-0108-0.

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AbstractBoric acid forms meta-stable complexes with biomolecules like amino and hydroxy acids and stable complexes with the diol group containing carbohydrates, vitamins, and nucleotides, yielding mono-chelate (1: 1 complex) or bis-chelate (1: 2 complex) structures with negatively charged tetrahedral borate anions. Here we report water-soluble, bio-available mixed-ligand boron adducts for potential nutritional and/or pharmaceutical applications. The complexes were prepared by complete esterification of boric acid with a number of acyclic- and cyclic hydroxy-functionalized biomolecules employin

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Mekonnen, D. W., A. Ghirardo, W. Zhang, and A. R. Schäffner. "The branched‐chain amino acid‐related isoleucic acid: recent research advances." Plant Biology, January 22, 2025. https://doi.org/10.1111/plb.13771.

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AbstractIsoleucic acid (ILA) was identified in human patients with maple syrup urine disease (MSUD) half a century ago. MSUD patients, who are defective in the catabolism of branched‐chain amino acids (BCAAs), that is, isoleucine, leucine, and valine, have urine with a unique maple syrup odour related to the accumulation of BCAA breakdown products, largely 2‐keto acid derivatives and their reduced 2‐hydroxy acids including ILA. A decade ago, ILA was identified in Arabidopsis thaliana. Subsequent studies in other plant species indicated that ILA is a ubiquitously present compound. Since its ide

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Hartman, Corey L., Rayna M. Dyck, and Diane B. Nelson. "A pilot study examining a double‐conjugated, retinoid‐based skincare regimen for darker, blemish‐prone skin." Journal of Cosmetic Dermatology, December 29, 2023. http://dx.doi.org/10.1111/jocd.16141.

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AbstractBackgroundRetinoids and alpha‐ and beta hydroxy acids are common components utilized in regimens for blemish‐prone skin. However, balancing efficacy and tolerability is often challenging.Patients/MethodsThis pilot study evaluated a double‐conjugated retinoid serum specifically formulated for blemish‐prone skin (AHARet‐SA) in combination with exfoliating peel pads (double‐conjugated retinoid, glycolic, lactic, and salicylic acids), a cleanser, mineral‐based sunscreen, and a lightweight moisturizer in female participants with mild‐to‐moderate blemish‐prone skin. Fifty‐five percent of par

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Turgunalieva, D. M., D. s. Dilbaryan, A. S. Vasilchenko, et al. "Synthesis and Antibacterial Activity of Hydrazones of Isonicotinic and Salicylic Acids Based on Acetyl Derivatives of Coumarin and Benzo[g][1,3,5]Oxadiazocine." Bulletin of the Karaganda University. "Chemistry" series, 2022. http://dx.doi.org/10.31489/2022ch4/4-22-2.

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In recent decades, the efforts of many researchers in the sphere of organic chemistry, physics and pharmacol-ogy have been focused on the search for new agents with pronounced antibacterial and especially antifungal activity. This is due to the widespread increase in the resistance of many bacterial strains and fungi to antibi-otics and antifungal drugs available in medical practice. In this regard, the number of works related to the synthesis of new potential antibiotics from the most diverse class of organic derivatives, which either include known pharmacophore groups or represent a new stru

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Wang, Xin, Bin Li, Dongyan Liu, et al. "Isolation, characterization, and LC MS/MS determination of anti-obesity components from pine needles of Cedrus deodara (Roxb.) G. Don." Frontiers in Nutrition 11 (August 1, 2024). http://dx.doi.org/10.3389/fnut.2024.1448908.

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ObjectiveThis study aimed to isolate and analyze the components in cedar pine needles (needle leaves of Cedrus deodara (Roxb.) G. Don) that exhibit anti-obesity effects, as determined through animal experiments.MethodsThe extract of cedar pine needles was separated into four fractions of different polarities using a macroporous resin column. The fraction that retained anti-obesity activity was evaluated based on the results of animal experiments. Monomeric compounds were structurally characterized and isolated from the active fraction using a preparative liquid chromatography system. Combined

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MOURAD, THANAA, and SHUAIB ALAHMAD. "A COMPUTATIONAL STUDY OF CIPROFLOXACIN METABOLITES AND SOME NATURAL COMPOUNDS AGAINST RESISTANT METHICILLIN STAPHYLOCOCCUS AUREUS (MRSA)." International Journal of Pharmacy and Pharmaceutical Sciences, August 1, 2022, 22–28. http://dx.doi.org/10.22159/ijpps.2022v14i8.44560.

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Objective: In this paper, a computational study, including molecular docking, was accomplished for ciprofloxacin metabolites and some natural compounds, then a practical study of that compounds alone and in combination was applied against resistant methicillin STAPHYLOCOCCUS AUREUS (MRSA) isolates. Methods: A docking software was used for molecular docking of the enzyme isomerase (3UWZ from protein data bank PDB) with ciprofloxacin (CIP) and its metabolites like sulfo-ciprofloxacin (Sulfo-CIP), oxo-ciprofloxacin, desethylene-ciprofloxacin, acetyl-ciprofloxacin, and natural compounds such as fl

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Hejda, S., D. Buzek, P. Kluson, and O. Bajt. "Fenton-like photocatalyzed degradation of dibutyl phthalate with goethite and carboxylic acids." International Journal of Environmental Science and Technology, February 13, 2023. http://dx.doi.org/10.1007/s13762-023-04781-4.

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AbstractDetailed investigation of photocatalyzed degradation of dibutyl phthalate (DBP), an endocrine disrupter, in the presence of α-FeOOH (goethite) and different carboxylic acids is the focus of this study. To get a better insight into the efficiency of the degradation, the influence of different parameters, such as concentration of total Fe and Fe(II), dissolved oxygen, DBP concentration, pH and salinity is investigated. The reaction mechanism consists of several interrelationship steps. The first step is the chemical reaction of carboxylic acid groups of the organic acids with hydroxyl gr

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Lenhardt, Katharina R., Mathias Stein, and Thilo Rennert. "Silicon Incorporation Reduces the Reactivity of Short-range Ordered Aluminosilicates Toward Organic Acids." Clays and Clay Minerals, August 11, 2023. http://dx.doi.org/10.1007/s42860-023-00248-2.

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AbstractThe structure and composition of short-range ordered aluminosilicates (SROAS) may control their affinity for organic acids with potential effects on soil organic matter stabilization. Adsorption mechanisms of model organic acids were studied to resolve the effect of Si incorporation. Adsorption of oxalic, salicylic, and octanoic acid on Al-rich (Al:Si = 3.7) and Si-rich (Al:Si = 1.4) SROAS was quantified by analyses of dissolved organic carbon using catalytic high-temperature combustion. The initial pH of 5 and 6.5 increased to 6.3–8.2 during adsorption of oxalic and salicylic acid, de

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