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Journal articles on the topic '2-hydroxy benzaldehyde'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Selvarani, V., M. A. Neelakantan, V. Silambarasan, and D. Velmurugan. "2-Hydroxy-4-(prop-2-ynyloxy)benzaldehyde." Acta Crystallographica Section E Structure Reports Online 69, no. 1 (2012): o64. http://dx.doi.org/10.1107/s1600536812049598.

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2

Öğütçü, Hatice, Nurdan K. Yetim, Elvan H. Özkan, et al. "Nanospheres caped Pt(II) and Pt (IV): synthesis and evaluation as antimicrobial and Antifungal Agent." Polish Journal of Chemical Technology 19, no. 1 (2017): 74–80. http://dx.doi.org/10.1515/pjct-2017-0011.

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Abstract Antimicrobial and antifungal polymers are gaining the attention of pharmaceutical makers and industrial design. Nanospheres-Polymers attached Platinum(II) / (IV) complexes have been synthesized to investigate antimicrobial activities. Firstly, nanospheres involving Schiff bases were synthesized from (aminomethyl) polystyrene and four substitute salicylaldehyde (2-hydroxy benzaldehyde, 5-fluoro-2-hydroxy benzaldehyde, 5-kloro-2-hydroxy benzaldehyde, 5-bromo-2-hydroxy benzaldehyde). Secondly, polymers attached Platinum(II) / (IV) complexes have been prepared by means of template method.

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3

Amal S. Sadiq. "Synthesis of N-Substituted 3-Chloro- 2-azetidinones for 2, 4-diamino-6- hydroxy pyrimidin." Journal of the College of Basic Education 21, no. 88 (2023): 13–24. http://dx.doi.org/10.35950/cbej.v21i88.9949.

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This search involved synthesis of several new N-Substituted -3-chloro- 2-azetidinones which were known as a high medicinal effectiveness for 2, 4-Diamino-6-hydroxy pyrimidin in two steps. The first step included preparation Shiff bases (1-6) by condensation of 2, 4-Diamino-6-hydroxy pyrimidin with many substituted aldehydes(4-hydroxy benzaldehyde, 2- bromobenzaldehyde, 4-dimethyl amino benzaldehyde, = 4-nitro benzaldehyde, salicylaldehyde, 4-chlorobenzaldehyde), then the second step included, preparation new six azetidinones compounds (7-12) by r

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4

Peng, Wan Xi, Qiu Xue, Feng Juan Wu, Xu Zhang, and Zhong Feng Zhang. "Assessment on Environmental Friendly Characteristics of Smoked Bamboo Biomass for Building Materials." Advanced Materials Research 183-185 (January 2011): 1832–36. http://dx.doi.org/10.4028/www.scientific.net/amr.183-185.1832.

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The main constituents at 230°С were propanoic acid, 2-(aminooxy)-(16.99%) , propanamide, 2-hydroxy-n-methyl-(14.20%) , benzaldehyde, 2-methyl-(13.22%) , furfural(9.44%) , butanal, 2-methyl-(8.09%) , acetic acid(7.09%) , hydrazine, methyl-(4.14%) , etc. And the main constituents at 280°С were hydrazine, ethyl-(24.87%) , 2(3h)-furanone, dihydro-4-hydroxy-(15.24%) , phenol, 2,6-dimethoxy-(11.82%) , benzaldehyde, 2-methyl-(11.49%) , furfural(4.90%) , etc. The heat release volatiles of smoked bamboo biomass might be used as raw materials of rare biomedicines. So the smoked bamboo biomass for buildi

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5

Wang, Yanwei, Zhenzhen Qiu, and Hongze Liang. "5-tert-Butyl-2-hydroxy-3-(2-thienyl)benzaldehyde." Acta Crystallographica Section E Structure Reports Online 66, no. 9 (2010): o2218. http://dx.doi.org/10.1107/s1600536810030382.

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6

Bats, Jan W., Matthias Gerlach, Michael Reggelin, and Matthias Köck. "2-Hydroxy-4,6-dimethoxy-3-(3-methylbutanoyl)benzaldehyde." Acta Crystallographica Section C Crystal Structure Communications 63, no. 11 (2007): o664—o666. http://dx.doi.org/10.1107/s0108270107048044.

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7

Thejeel, Entedhar, and Athraa Hameed Mekky. "Synthesis, Absorption, Distribution, Metabolism, Excretion, Toxicology (ADMET) and molecular docking studies of some pyridin-2(1H)-one derived from a Apocynin in Thi-Qar Governorate." University of Thi-Qar Journal of Science 10, no. 2 (2023): 73–80. http://dx.doi.org/10.32792/utq/utjsci/v10i2.1089.

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The present study includes synthesized of some pyridin-2(1H)- one of 1-(4-hydroxy-3-methoxyphenyl) ethan-1-one. The [ 6-(4-hydroxy-3-methoxyphenyl) - 4 - (4-methoxyphenyl) - 2 - oxo-1,2-dihydropyridine - 3- carbonitrile, 4 - (4-bromophenyl) - 6 -(4-hydroxy-3-methoxyphenyl)-2-oxo-1,2- dihydropyridine - 3- carbonitrile, 4 - (4-bromophenyl) – 6 - (4-hydroxy-3-methoxyphenyl)-2-oxo-1, 2 - dihydropyridine - 3-carbonitrile] derivatives have been synthesized by cyclization reaction of the 1-(4-hydroxy-3-methoxyphenyl)ethan-1-one with various aldehydes (4-methoxy benzaldehyde, 4-bromo benzaldehyde ,4-d

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8

Odabaşoğlu, Mustafa, Orhan Büyükgüngör, B. Narayana, A. M. Vijesh, and H. S. Yathirajan. "(E)-2-Hydroxy-5-methyl-3-[(2-pyridylimino)methyl]benzaldehyde." Acta Crystallographica Section E Structure Reports Online 63, no. 4 (2007): o1916—o1918. http://dx.doi.org/10.1107/s1600536807012913.

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9

Doukeh, Rami, Maria Râpă, Ecaterina Matei, et al. "An Evaluation of Glycerol Acetalization with Benzaldehyde over a Ferromagnetic Heteropolyacid Catalyst." Catalysts 13, no. 4 (2023): 782. http://dx.doi.org/10.3390/catal13040782.

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Tungstophosphoric acid (H3PW12O40) supported on silica-coated magnetite nanoparticles has been prepared and used as a heterogeneous acid catalyst (Fe3O4@SiO2@HPW) in the condensation of benzaldehyde (B) with glycerol (Gly) for the production of cyclic acetals. Physicochemical techniques, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier-transform infrared spectrometry (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), and N2 physisorption were used to characterize the prepared catalyst. The effect of glycerol/benzaldehyde molar ratio

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10

Mahdi, Huda, Azhar Hameed, Alaa Mohammed, and Issraa A. Jassem. "New Benzohydrazide Schiff Base: Synthesis, Characterization and Biological Studies." INTERNATIONAL JOURNAL OF DRUG DELIVERY TECHNOLOGY 12, no. 02 (2022): 658–61. http://dx.doi.org/10.25258/ijddt.12.2.33.

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In this study, two new Schiff bases are produced via condensation reaction of 2-hydroxy-3-methoxy benzaldehyde and 2-hydroxy benzaldehyde compounds with benzohydrazide compound. The products are investigated by fourier-transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance (H-NMR), carbon-13 nuclear magnetic resonance (13C-NMR), and mass spectroscopy. Antibacterial activities of synthesized compounds are scanned versus Staphylococcus aureus (gram-positive) and Escherichia coli (gram negative) strains. The results showed that the Schiff bases compounds illustrated weak effect

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11

Ohashi, Seishi, Francis Cassidy, Stephanie Huang, Kevin Chiou, and Hatsuo Ishida. "Synthesis and ring-opening polymerization of 2-substituted 1,3-benzoxazine: the first observation of the polymerization of oxazine ring-substituted benzoxazines." Polymer Chemistry 7, no. 46 (2016): 7177–84. http://dx.doi.org/10.1039/c6py01686c.

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12

Neamah, Rawaa, та Shaimaa Adnan. "Study the Biological Activity for Shiff Base and Β – Lactam Compounds that Synthesis and Identification from Pyrimidine Derivatives". International Journal of Pharmaceutical Quality Assurance 11, № 01 (2013): 37–39. http://dx.doi.org/10.25258/ijpqa.11.1.12.

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In This study We are synthesis and characterization of some Schiff base and β- lactam derivatives) by three steps. The First react 2-amino-4-Chloro-6-methyl pyrimidine with 4-amino acetophenone in an acid medium to get shiff base derivative(E)-4-(1-((4-Chloro-6-methyl pyridine-2-yl)imino)ethyl)aniline (1), the second step (1) react with (3,4- dimethoxybenzal dehyde,4-methyl benzaldehyde,4-dimethylamino benzaldehyde,4-bromo benzaldehyde,4–hydroxy benzaldehyde, 4-Nitro benzaldehyde) to get Schiff base derivatives (2-7), the last step (2-7) derivatives react with Chloro acetyl chloride to get –β-

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13

Svoboda, Jiří, Miloslav Nič, and Jaroslav Paleček. "An Anomalous Course of the Darzens Reaction Catalyzed with Magnesium Methoxide." Collection of Czechoslovak Chemical Communications 57, no. 1 (1992): 119–22. http://dx.doi.org/10.1135/cccc19920119.

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The reaction of benzaldehyde with methyl chloroacetate catalyzed with magnesium methoxide gave beside the expected methyl 2,3-epoxy-3-phenylpropanoate (I) also comparable amounts of methyl 2-hydroxy-3-methoxy-3-phenylpropanoate (II). The condensation was accompanied by a competing disproportionation of benzaldehyde giving methyl benzoate and benzyl alcohol. The course of the condensation reaction is discussed.

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14

Ndima, Lubabalo, Eric C. Hosten, and Richard Betz. "Crystal structure of 2-hydroxy-4-methoxy benzaldehyde, C8H8O3." Zeitschrift für Kristallographie - New Crystal Structures 236, no. 1 (2021): 81–83. http://dx.doi.org/10.1515/ncrs-2020-0426.

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15

Journal, Baghdad Science. "Synthesis & Characterization of Oxazinan and 5-oxa-7-aza-spiro[2,5] octane from reaction of Dibenzylidene with malonic anhydride and 5-oxa-spiro[2,3] hexane-4,6-dione." Baghdad Science Journal 4, no. 2 (2007): 276–84. http://dx.doi.org/10.21123/bsj.4.2.276-284.

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Di Benzylidenes were prepared by condensation of 1,2-diamino benzene with o- hydroxy benzaldehyde. These dibenzylidenes when treated with one equivalent of malonic anhydride or 5-oxo-spiro[2,3]hexane-4,6-dione in dry benzene give 6-membered heterocyclic ring system of 3-{2-[(2-Hydroxy-benzylidene)-amino]-phenyl}-2-(2-hydroxy –phenyl)-[1,3]oxazinane-4,6-diones ( 1-3) or 7-{2-[(2-hydroxy-benzylidene)-amino]-phenyl}-6-(2-hydroxy-phenyl)-5-oxa-7-aza-spiro[2.5]octane-4,8-diones ( 7- 9 ) But when two equivalents of malonic anhydride or 5-oxo-spiro[2,3]hexane-4,6-dione were used and under sam conditi

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16

Natalia, Dessy, Christina Kohlmann, Marion B. Ansorge-Schumacher, and Lasse Greiner. "Direct Spectrophotometric Assay for Benzaldehyde Lyase Activity." Biotechnology Research International 2011 (July 14, 2011): 1–4. http://dx.doi.org/10.4061/2011/478925.

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Benzaldehyde lyase from Pseudomonas fluorescens Biovar I. (BAL, EC 4.1.2.38) is a versatile catalyst for the organic synthesis of chiral α-hydroxy ketones. To allow fast assessment of enzyme activity, a direct spectrophotometric assay is desirable. Here, a new robust and easy-to-handle assay based on UV absorption is presented. The assay developed is based on the ligation of the α-hydroxy ketone (R)-2,2′-furoin from 2-furaldehyde. A robust assay with direct monitoring of the product is facilitated with a convenient concentration working range minimising experimental associated with low concent

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17

Kalpana, Chaturvedi. "Novel Synthesis of Some Organophosphorus Derivatives as Chemotherapeutants against Fungal Pathogens of Sugracane." Der Pharma Chemica 14, no. 2 (2022): 7. https://doi.org/10.4172/0975-413X.14.2. 16-22.

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The reactions of O,O-diethylchlorophosphate or O,O-diethylchlorothiophosphate with 1,4-phthalazine-bis(hydrazones), derived by the condensation of 1,4-dihydrazinophthalazine dihydrochloride monohydrate and 2-hydroxy benzaldehyde/4-hydroxy benzaldehyde/2- hydroxyacetophenone/4-hydroxyacetophenone, have been studied and a variety of organophosphorus derivatives have been obtained. The derivatives have been characterized on the basis of analyses and spectral (IR, 1H NMR) data and tested for their antifungal efficacy against colletotrichum falcatum, Fusarium oxysporum and Curvularia pallescens (al

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18

Chaturvedi, Kalpana, and Smita Chaturvedi. "Novel Synthesis of Some Organophosphorus Derivatives as Chemotherapeutants against Fungal Pathogens of Sugracane." Der Pharma Chemica 14, no. 2 (2022): 7. https://doi.org/10.5281/zenodo.13354182.

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The reactions of O,O-diethylchlorophosphate or O,O-diethylchlorothiophosphate with 1,4-phthalazine-bis(hydrazones), derived by the condensation of 1,4-dihydrazinophthalazine dihydrochloride monohydrate and 2-hydroxy benzaldehyde/4-hydroxy benzaldehyde/2- hydroxyacetophenone/4-hydroxyacetophenone, have been studied and a variety of organophosphorus derivatives have been obtained. The derivatives have been characterized on the basis of analyses and spectral (IR, 1H NMR) data and tested for their antifungal efficacy against colletotrichum falcatum, Fusarium oxysporum and Curvularia pallescens (al

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19

JEONG, EUN-YOUNG, KYOUNG-SHIK CHO, and HOI-SEON LEE. "Food Protective Effects of Periploca sepium Oil and Its Active Component against Stored Food Mites." Journal of Food Protection 75, no. 1 (2012): 118–22. http://dx.doi.org/10.4315/0362-028x.jfp-11-315.

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The aim of this study was to examine the acaricidal activity of Periploca sepium oil and its active component against Tyrophagus putrescentiae. Based on its 50% lethal dose (LD50) value, P. sepium oil (8.45 μg/cm2) was highly active against T. putrescentiae. The active constituent of P. sepium was isolated by chromatographic techniques and identified as 2-hydroxy-4-methoxybenzaldehyde. In the comparison with synthetic acaricides, the acaricidal activity of 2-hydroxy-4-methoxybenzaldehyde (0.94 μg/cm2) against T. putrescentiae was 12.2- and 31.2-fold greater than those of benzyl benzoate (11.45

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20

Shibli, R. T., and T. E. Jassim. "Analytical study and application of new chelating polymers for removal of heavy metals from wastewater sample." Mesopotamian Journal of Marine Sciences 36, no. 1 (2021): 1–14. http://dx.doi.org/10.58629/mjms.v36i1.11.

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This study includes the preparation of new Schiff-base derived from (3-amino phenol) and (2-hydroxy benzaldehyde and (2-hydroxy-3-methoxy benzaldehyde), the characterization of this bases is carried out by FT-IR and 1H-NMR The prepared bases were loaded on Urethane foam to prepare chelating polymers which were characterized by FT-IR, TGA and DSC technique. The loading efficiency of these resins were investigated toward several ions Cu+2, Cd+2, Ni+2 and pb+2 in different time and pH by Batch method. The prepared chelating polymers showed a good efficiency towards the studied ions and it was max

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21

Journal, Baghdad Science. "Spectroscopic Study for Resonance Effects on the Carbonyl Double Bond Order in Urea Schiff Bases Which Contain Conjugated System." Baghdad Science Journal 8, no. 3 (2011): 711–16. http://dx.doi.org/10.21123/bsj.8.3.711-716.

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In this work we prepared some schiff bases by condensation urea and benzaldehyde or its derevative ( bromo benzaldehyde or hydroxy benzaldehyde ) as ( 1 : 1 ) mole ( urea : benzaldehyde or its substitution ) to prepare compounds ( A1 , B1 , C1 , D1 , E1 , F1 , G1 ) and ( 1 : 2 ) mole ( urea : benzaldehyde or its substitution ) to prepare compounds ( A2 , B2 , C2 , D2 , E1 , F2 , G2 ) . The prepared compounds identified spectroscopic by infrared spectroscopy FT-IR and Thin layer chromotography T.L.C . The force constant calculated from the wave number for the carbonyl stretching from FT-IR char

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22

Kshash, Abdullah H., Mohammed O. Ezzat, and Ziad K. Abdul Razzak. "Spectroscopic Study for Resonance Effects on the Carbonyl Double Bond Order in Urea Schiff Bases Which Contain Conjugated System." Baghdad Science Journal 8, no. 3 (2011): 711–16. http://dx.doi.org/10.21123/bsj.2011.8.3.711-716.

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In this work we prepared some schiff bases by condensation urea and benzaldehyde or its derevative ( bromo benzaldehyde or hydroxy benzaldehyde ) as ( 1 : 1 ) mole ( urea : benzaldehyde or its substitution ) to prepare compounds ( A1 , B1 , C1 , D1 , E1 , F1 , G1 ) and ( 1 : 2 ) mole ( urea : benzaldehyde or its substitution ) to prepare compounds ( A2 , B2 , C2 , D2 , E1 , F2 , G2 ) . The prepared compounds identified spectroscopic by infrared spectroscopy FT-IR and Thin layer chromotography T.L.C . The force constant calculated from the wave number for the carbonyl stretching from FT-IR char

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23

Ranjana Sharma Goswami, Y. C. Goswami, and D. Kumar. "Synthesis of Zinc Sulfide Luminescent Nanoparticles Using Zinc Metal Complexes of S-benzyl Dithiocarbonate via Microwave Irradiation Route." International Journal of Nanoelectronics and Materials (IJNeaM) 16, no. 3 (2024): 725–36. http://dx.doi.org/10.58915/ijneam.v16i3.1339.

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This paper reported highly luminous zinc sulfide (ZnS) nanoparticles grown by microwave-irradiated single molecular precursors. The precursor was obtained by Schiff bases of S-benzyl dithiocarbazate (SBDTC) ligand using 5-Bromo-4-hydroxy-3-methoxy-2-nitro Benzaldehyde; 4NNbiscyno diethylamino benzaldehyde and p-amino acetophenone. The nanoparticles obtained were characterized by X-ray diffraction studies for structural analysis, transmission electron micrographs (TEM) for morphological analysis, and UV-Vis spectra for optical analysis. X-ray diffractograms exhibit mixed structures analysis (wu

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24

Karadayı, Nevzat, Çiğdem Albayrak, Mustafa Odabaşoğlu, and Orhan Büyükgüngör. "(E)-2-Hydroxy-3-methoxy-5-[(4-propylphenyl)diazenyl]benzaldehyde." Acta Crystallographica Section E Structure Reports Online 62, no. 9 (2006): o3695—o3696. http://dx.doi.org/10.1107/s1600536806029631.

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25

Karadayı, Nevzat, Çiğdem Albayrak, Mustafa Odabaşoğlu, and Orhan Büyükgüngör. "(E)-2-Hydroxy-3-methoxy-5-[(3-methoxyphenyl)diazenyl]benzaldehyde." Acta Crystallographica Section E Structure Reports Online 62, no. 5 (2006): o1727—o1729. http://dx.doi.org/10.1107/s1600536806011263.

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The molecule of the title compound, C15H14N2O4, is approximately planar and displays a trans configuration with respect to the N=N double bond. The molecules are linked by intermolecular C—H...O and C—H...π interactions, forming a three-dimensional network.

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26

Rys, Veronique, Axel Couture, Eric Deniau, Pierre Grandclaudon, and Guy Nowogrocki. "Crystal Structure of (R*,S*)-3-(Hydroxy-Phenyl-Methyl)- 2-Methyl- and 2-(4-Methoxybenzyl)-2,3-Dihydroisoindol-1-Ones." Journal of Chemical Research 2002, no. 1 (2002): 9–10. http://dx.doi.org/10.3184/030823402103170466.

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27

Büyükgüngör, Orhan, Mustafa Odabaşoğlu, B. Narayana, A. M. Vijesh, and H. S. Yathirajan. "(E)-2-Hydroxy-5-methyl-3-[(4-methyl-2-pyridyl)iminomethyl]benzaldehyde." Acta Crystallographica Section E Structure Reports Online 63, no. 4 (2007): o1996—o1998. http://dx.doi.org/10.1107/s1600536807013177.

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28

Tripathi, Mamta, Ashish Kumar Asatkar, Stalin Antony, et al. "Copper(ii) complexes supported by modified azo-based ligands: Nucleic acid binding and molecular docking studies." Open Chemistry 20, no. 1 (2022): 505–16. http://dx.doi.org/10.1515/chem-2022-0164.

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Abstract Two new copper(ii) complexes [CuL1] (1) and [CuL2] (2) derived from azo-based ligands 2-hydroxy-5-p-tolylazo-benzaldehyde (HL1) and 1-(2-hydroxy-5-p-tolylazo-phenyl)-ethan-one (HL2) were synthesized. These two ligands and their metal complexes were characterized by elemental analysis, nuclear magnetic resonance (1H and 13C), infrared, and UV/Vis spectroscopic techniques. Spectroscopy and other theoretical studies reveal the geometry of copper complexes, and their binding affinity towards nucleic acids are major groove binding.

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29

Naseer Ali, Dina, Kawther Adeeb Hussein, Marwa Faeq, Yudhisman Imran, and Waled Abdo Ahmed. "Molecular Docking, Synthesis of New Schiff base Derivatives, and Study of their Biological Activity." Al-Nahrain Journal of Science 27, no. 5 (2024): 25–34. https://doi.org/10.22401/anjs.27.5.04.

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The Schiff bases (E1-E3) are generated by reacting azo derivative (A) with different amine derivatives. The Schiff bases (E1-E3) are obtained via the reaction between azo derivative with 4-methylbenzaldehyde, 4-ethyl-benzaldehyde, and 4-hydroxy-benzaldehyde. The Schiff base E1 namely:2-[(4-methylphenyl)diazenyl]-4-{(E)-[(4-methylphenyl)imino]-methyl}phenol; E2:4-{(E)-[(4-ethylphenyl)imino]-methyl}-2-[(4-methyl-phenyl)diazenyl]phenol; E3:4-{(E)-[(4-hydroxyphenyl)imino]methyl}-2-[(4-methylphenyl)diazenyl]phenol. All synthesized derivatives are characterized based on physical characteristics and

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30

Klein, Birgit, Hermann Schildknecht, Monika Hilker, and Siegfried Bombosch. "Oviposition Deterrent from Larval Frass of Spodoptera littoralis (Boisd.)." Zeitschrift für Naturforschung C 45, no. 7-8 (1990): 895–901. http://dx.doi.org/10.1515/znc-1990-7-823.

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Abstract A synthetic mixture containing 1-indanone, 2-pentanone, 2-methyl-3-pentanone, 3-mcthyl- 2-pentanone, 2-methylcyclopentanone. 1-hydroxy-propanone. acetophenone, benzaldehyde. n-nonanal, n-decanal, nerolidol, eugenol, thymol, carvacrol and phythol deters oviposition of the Egyptian cotton leaf worm, Spodoptera littoralis (Boisd.). All compounds were identified from larval frass of S. littoralis.

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31

Purwono, Bambang, Chairil Anwar, and Ahmad Hanapi. "Syntheses of Azo-Imine Derivatives from Vanillin as an Acid Base Indicator." Indonesian Journal of Chemistry 13, no. 1 (2013): 1–6. http://dx.doi.org/10.22146/ijc.21318.

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Preparations of azo, imine and azo-imine derivatives from vanillin as an indicator of acid-base titration have been carried out. The azo derivative of 4-hydroxy-3-methoxy-5-(phenylazo)benzaldehyde 2 was produced by diazotitation reaction of vanillin in 37.04% yield. The azo product was then refluxed with aniline in ethanol to yield azo-imine derivatives, 2-methoxy-6-(phenylazo)-4-((phenylimino)methyl)phenol 1 in 82.21% yield. The imine derivative, 2-methoxy-4-((phenylimino)methyl)-phenol 3 was obtained by refluxing of vanillin and aniline mixture in ethanol solvent and produced 82.17% yield. T

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32

Mulabagal, Vanisree, Ruby L. Alexander-Lindo, David L. DeWitt, and Muraleedharan G. Nair. "Health-Beneficial Phenolic Aldehyde inAntigonon leptopusTea." Evidence-Based Complementary and Alternative Medicine 2011 (2011): 1–6. http://dx.doi.org/10.1093/ecam/nep041.

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Tea prepared from the aerial parts ofAntigonon leptopusis used as a remedy for cold and pain relief in many countries. In this study,A. leptopustea, prepared from the dried aerial parts, was evaluated for lipid peroxidation (LPO) and cyclooxygenase (COX-1 and COX-2) enzyme inhibitory activities. The tea as a dried extract inhibited LPO, COX-1 and COX-2 enzymes by 78%, 38% and 89%, respectively, at 100 g/mL. Bioassay-guided fractionation of the extract yielded a selective COX-2 enzyme inhibitory phenolic aldehyde, 2,3,4-trihydroxy benzaldehyde. Also, it showed LPO inhibitory activity by 68.3% a

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33

Liu, Z. C., W. P. Zhu, Y. H. Chen та ін. "Water-soluble host–guest system from β-cyclodextrin as a fluorescent sensor for aluminium ions: synthesis and sensing studies". Dalton Transactions 44, № 37 (2015): 16528–33. http://dx.doi.org/10.1039/c5dt02220g.

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In this paper, a simple small molecule (L) derived from 4-(diethylamino)-2-hydroxy-benzaldehyde and carbohydrazide has been synthesized, and a water-soluble host–guest system from β-cyclodextrin and L was obtained that exhibited characteristic fluorescence behavior toward Al<sup>3+</sup>.

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34

M., Yildtz, Dulger B., and Cinar A. "Synthesis and characterization of new crown ethers of Schiff base type and their complexes." Journal of Indian Chemical Society Vol. 82, May 2005 (2005): 414–20. https://doi.org/10.5281/zenodo.5829999.

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Department of Chemistry, Department of Biology, Faculty of Arts and Sciences, Canakkale Onsekiz Mart University, 17100 Canakkale, Turkey <em>Manuscript received 25 February 2004, revised 28 September 2004, accepted 2 February 2005</em> New crown ether ligands of Schiff base type (4-11) have been synthesised by the reaction of two equivalents of benzaldehyde, 2-hydroxybenzaldehyde, 2,3-di hydroxy benzaldehyde, 5-methoxy-2-hydroxy benzaldehyde, 5- hromo-2- hydroxybenzaldehyde, 5-nitro-2-hydroxybenzaldehyde, 4-hydroxybenzaldchyde or 2-hydroxy-l-naphthalckhyde with 2,3,5,6- di[ 4-aminobcnzo]-1,7,

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35

Aboud, Wasfi, Harith Y. Mahmood, Rasha M. Othman, and Wasan M. Shaker. "The NMR Study and Antimicrobial Activity of Some Schiff Bases Derived From Sulphonamide Drug." JOURNAL OF ADVANCES IN CHEMISTRY 12, no. 2 (2016): 4009–17. http://dx.doi.org/10.24297/jac.v12i2.2157.

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Some Schiff base compounds derived from sulfonamide drug were synthesized by reaction of 4-aminobenzenesulfonamide with aromatic aldehydes (2-hydroxy-1-naphthaldehyde, 3,4-dihydroxybenzaldehyde and 2-hydroxy benzaldehyde) in good yields. Characterization of synthesized compound was carried by elemental analysis, IR, 1H,13C, HSQC and HMBC- NMR spectroscopy. The synthesized compounds were screened for their antibacterial activity against Staphylococcus aureus, Streptococcus sp., Bacillus subtillus, Escherichia coli and Klebsiella pneumonia. Additionally, the compounds were tested for antifungici

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36

Vereshchagin, Anatoliy A., Julia V. Novoselova, Arseniy Y. Kalnin, and Daniil A. Lukyanov. "2-Hydroxy-3-(4-oxy(2,2,6,6-tetramethylpiperidin-1-oxyl)butoxy)benzaldehyde." Molbank 2021, no. 3 (2021): M1245. http://dx.doi.org/10.3390/m1245.

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Salen-type complexes with transition metals and corresponding polymers attract great scientific interest due to their high electrochemical properties and potential for use as part of next generation organic energy storage devices. Because of their good conductivity but relatively low capacity, energy-intensive additives such as quinones or TEMPO fragments can significantly enhance the capacitive characteristics of the electrode materials. Herein, we report a preparation of precursor for a modified Salen-type complex, the substituted 2,3-Dihydroxybenzaldehyde by butoxy linkers with TEMPO fragme

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37

Corredoira-Vázquez, Julio, Matilde Fondo, Jesús Sanmartín-Matalobos, and Ana M. García-Deibe. "2D Supramolecular Structure for a Chiral Heterotrinuclear ZnII2HoIII Complex through Varied HBonds Connecting Solvates and Counterions." Proceedings 2, no. 14 (2018): 1114. http://dx.doi.org/10.3390/iecc_2018-05247.

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We report the crystal structure of [ZnII2HoIII(L)(ald)(HO)(H2O)3(MeCN)](NO3)2·EtOH [H3L = 2-(5-bromo-2-hydroxy-3-methoxyphenyl)-1,3-bis[4-(5-bromo-2-hydroxy-3-methoxyphenyl)-3-azabut-3-enyl]-1,3-imidazolidine) and Hald = 5-bromo-2-hydroxy-3-methoxy-benzaldehyde]. Despite the presence of two bulky multidentate ligands, as well as several monodentate ligands surrounding the nonacoordinate holmium cation, and the two pseudooctahedral zinc ions, the intricate H-bonded system formed by this chiral heterotrinuclear complex is only expanded in a 2D supramolecular structure. The interactions involve t

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38

Ban Mahdi Salih and Muna Abass Hadi. "Synthesis, Identification and Spectral Studies of Some New Schiff base ligand Complexes Contained 3,4-Diaminobenzophenone and pyridoxal hydrochloride Compounds." Journal of Kufa for Chemical Sciences 2, no. 9 (2023): 115–27. http://dx.doi.org/10.36329/jkcm/2022/v2.i9.13290.

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Anew Schiff base ligand. (HMPHM) 3-((4-chlorobenzylidene)amino)-4-((€-(3-hydroxy-5-(hydroxyl methyl)-2-Methyl)puridin-4-yl)methylene)amino)phenyl)(phenyl)methanon has been Prepared from reacting(3-amino-4-(((3-hydroxy-5-(hydroxylmethyl)-2-methylpyridin-4-yl)methylene)amino)phenyl)(phenyl)methanone with P-Chloro benzaldehyde Co(II), Ni(II), Cu(II), Zn(II), Cd(II), and Au(III) ions were used to create a new series of chelate complexes. The structures of the new Schiff base ligand and their transition metal complexes were characterized by using Fourier-transform infrared spectroscopy (FTIR), prot

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39

Mishra, Sonali, Nupur Srivastava, Velusamy Sundaresan, and Karuna Shanker. "Amruthapala (Decalepis arayalpathra (J. Joseph and V. Chandras.) Venter): A Comprehensive Review on Diversity, Therapeutic Uses, and Valorization of Bioactive Constituents." Current Pharmaceutical Biotechnology 20, no. 5 (2019): 376–89. http://dx.doi.org/10.2174/1389201020666190318115504.

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Background: Decalepis arayalpathra (J. Joseph and V. Chandras.) Venter is used primarily for nutrition besides its therapeutic values. Traditional preparations/formulations from its tuber are used as a vitalizer and blood purifier drink. The folklore medicinal uses cover inflammation, cough, wound healing, antipyretic, and digestive system management. A comprehensive review of the current understanding of the plant is required due to emerging concerns over its safety and efficacy. Objective: The systematic collection of the authentic information from different sources with the critical discuss

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Farhan, Ali Mahdi, Hanaa Kadtem Egzar, and Hawraa Mahdi Alabidi. "New Compounds Derived from Nitrophenol Synthesis, Structural Investigation and Anticorrosion Properties." Acta Chimica Slovenica 71, no. 2 (2024): 179–85. http://dx.doi.org/10.17344/acsi.2023.8489.

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A new azo compound 3 [2-((4-hydroxy-3-(E)-(2-hydroxy-5-nitrophenyl)diazenyl)benzaldehyde] and the azo-Schiff derivative 4 [2-((4-hydroxy-3-((E)-(2-hydroxy-5-nitrophenyl)diazenyl)benzylidene)amino)-4-nitrophenol[ (azo-Schiff 4) have been synthesized. 13C-NMR, 1H-NMR, FT-IR, mass spectroscopy and UV-Vis analysis was used to characterized new compounds. The new synthesized compound azo-Schiff 4 was utilized to inhibit mild steel (MS) corrosion at little concentrations (0.001–0.006 M). Weight loss measurements studies in 1 M HCl and at 298 K showed that azo-Schiff 4 has a good corrosion inhibition

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Baloyi, Tumelo Hope, Motsie Elija Mashuga, Abdelilah El-Khlifi, Mohammad Salman, and Indra Bahadur. "Exploring the Structural Effects of Benzaldehyde Derivatives as Corrosion Inhibitors on Mild Steel in Acidic Medium Using Computational and Experimental Approaches." Corrosion and Materials Degradation 6, no. 3 (2025): 29. https://doi.org/10.3390/cmd6030029.

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In a recent investigation the corrosion-fighting potential of five benzaldehyde derivatives were explored: 4-Formylbenzonitrile (BA1), 4-Nitrobenzaldehyde (BA2), 2-Hydroxy-5-methoxy-3-nitrobenzaldehyde (BA3), 3,5-Bis(trifluoromethyl)benzaldehyde (BA4), and 4-Fluorobenzaldehyde (BA5). Benzaldehyde derivative (BA-2) showed a maximum inhibition efficiency of 93.3% at 500 ppm. Several techniques were used to evaluate these compounds’ ability to protect mild steel from corrosion in a 1 M HCl solution, including potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), adsorp

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42

Firyal W. Askar, Khitam J. Nabhan та Hammed H. Mohamed. "تحضير ودراسات مضادات الميكروبات للمجمعات المعدنية لقواعد شيف 2- (بنزيليدين) بنزوثيازول هيدرازون". Journal of the College of Basic Education 15, № 59 (2022): 1–12. http://dx.doi.org/10.35950/cbej.v13i59.6534.

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تضمن هذا البحث تحضير قاعدة شف 2- (benzylidine) benzothiazole hydrazone من تفاعل 2-hydrazinobenzothiazole مع p-hydroxy benzaldehyde جرى تشخيص قاعدة شف بطريق طيف الأشعة تحت الحمراء (IR ) وطيف الاشعة البنفسجية-المرئية (( UV-Vis و ثم استخدام هذه القاعدة كليكاند في تحضير المعقدات الجديدة مع ايونات عناصر البلاديوم , النيكل, البلاتين والنحاس الثنائية و. جرى تناسق هذه الأيونات مع الليكاند من خلال ذرتي نتروجين مجموعة الأزوميثين

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43

Chumakov, Yu M., T. J. Malinowski, V. I. Tsapkov, and N. M. Samus. "The structure of copper(II) with 2-hydroxyethyl(propyl)imine-2-hydroxy-1-benzaldehyde." Acta Crystallographica Section A Foundations of Crystallography 52, a1 (1996): C324. http://dx.doi.org/10.1107/s0108767396086552.

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Pattekhan, H. H., and S. Divakar. "Regioselectivity in the preparation of 2-hydroxy-4-methoxy benzaldehyde from resorcinol." Journal of Molecular Catalysis A: Chemical 169, no. 1-2 (2001): 185–91. http://dx.doi.org/10.1016/s1381-1169(00)00556-2.

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45

Zgierski, Marek Z., Takashige Fujiwara, and Edward C. Lim. "Coupled Electron and Proton Transfer Processes in 4-Dimethylamino-2-hydroxy-benzaldehyde." Journal of Physical Chemistry A 115, no. 35 (2011): 10009–17. http://dx.doi.org/10.1021/jp203009j.

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46

Demirci, Tülay, Yüksel Köseoğlu, Sadik Güner, and Bahri Ülküseven. "Oxovanadium(IV) complexes of bromo-and methoxy substituted N1,N4-diarylidene-S-methylthiosemicarbazones." Open Chemistry 4, no. 1 (2006): 149–59. http://dx.doi.org/10.1007/s11532-005-0011-z.

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AbstractFour new oxovanadium(IV) compounds were prepared by template reaction of salicyl-, 5-bromosalicyl-and 3-methoxysalicyl-aldehyde S-methylthiosemicarbazones with 2-hydroxy-, 5-bromo-2-hydroxy-and 3-methoxy-2-hydroxy-benzaldehyde in various combinations. The compounds were isolated as stable solid compounds with general formula [VO(L)] and characterized by elemental analysis, conductivity and magnetic measurements, electronic, IR and EPR spectroscopy. The X-band EPR signals recorded from powder forms of all samples have a single asymmetric line shape and theoretical fit studies proved the

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47

Ravindra, S. Dhivare, and S. Rajput S. "Microwave assisted solvent free synthesis and antifungal evaluation of3, 5-bis-(4-hydroxy-3-methoxybenzylidene)-Nphenylpiperidine- 2, 6-dionederived from N-phenyl glutarimides." International Journal of ChemTech Research 9, no. 3 (2016): 325–31. https://doi.org/10.5281/zenodo.3911265.

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<strong>Abstract: </strong> An efficient microwave supported solvent-free synthesis of <strong><em>3,5-bis-(4-hydroxy-3-methoxybenzylidene-N-phenylpiperidine-2,6-diones</em></strong> described with the subsequent condensation of N-phenyl glutarimides with 4-hydroxy-3methoxy-benzaldehyde in presence neutral alumina. The afforded compounds exhibited good and remarkable antifungal activities.  

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Naureen, Humaira, Michel Feussi Tala, Khaled A. Shaaban, Mohamed Shaaban, Anja Schüffler, and Hartmut Laatsch. "A new furan carboxamide and two potential precursors from a terrestrial streptomycete." Zeitschrift für Naturforschung B 72, no. 3 (2017): 175–82. http://dx.doi.org/10.1515/znb-2016-0202.

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Abstract Three new bioactive metabolites, 1,6-dihydroxy- 2-methyl-heptan-4-one (1), 4-hydroxy-1-(2-methyl-oxiranyl)- pentan-2-one (2), and 2-(2-hydroxy-propyl)-4-methylfuran- 3-carboxylic acid amide (3) were isolated from the terrestrial Streptomyces sp. isolate ANK245, along with the new microbial constituent p-vinylanisol (4a) and the known metabolites p-vinyl-phenol (4b) and phenethyl alcohol. Analysis of the nonpolar part of the extract by gas chromatography/mass spectrometry (GC-MS) provided further evidence for tetradecanoic acid, 9-octadecenoic acid, hexadecanoic acid, 2-methoxy-4-vinyl

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Anwar, Chairil, Yogo Dwi Prasetyo, Sabirin Matsjeh, Winarto Haryadi, Eti Nurwening Sholikhah, and Nendrowati Nendrowati. "Synthesis of Chalcone Derivatives and Their in vitro Anticancer Test Against Breast (T47D) and Colon (WiDr) Cancer Cell Line." Indonesian Journal of Chemistry 18, no. 1 (2018): 102. http://dx.doi.org/10.22146/ijc.26864.

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The synthesis of chalcone derivatives as target compounds and anticancer test against breast (T47D) and colon (WiDr) cell line had been performed. The synthesis was performed by Claisen-Schmidt condensation by using acetophenone and benzaldehyde derivatives. The anticancer activity test of chalcone derivatives was carried out by MTT assay against T47D and WiDr cell lines. The synthesis was started by reacting 4-hydroxyacetophenone and benzaldehyde derivatives such as p-anisaldehyde (chalcone A [(E)-4'-hydroxy-4-methoxychalcone]), veratraldehyde (chalcone B [(E)-4'-hydroxy-3,4-dimethoxychalcone

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Kukharev, B. F., V. K. Stankevich, G. R. Klimenko, V. A. Kukhareva, and E. V. Bragin. "Synthesis of 2-{2-hydroxy-3-[2-(vinyloxy)ethoxy]propoxy}-benzaldehyde and Schiff bases derived therefrom." Russian Journal of Organic Chemistry 44, no. 10 (2008): 1494–96. http://dx.doi.org/10.1134/s1070428008100151.

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