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Journal articles on the topic 'Substituted phenol'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Hussain, Sabir, Jyoti Sharma, and Mohd Amir. "Synthesis and Antimicrobial Activities of 1,2,4-Triazole and 1,3,4-Thiadiazole Derivatives of 5-Amino-2-Hydroxybenzoic Acid." E-Journal of Chemistry 5, no. 4 (2008): 963–68. http://dx.doi.org/10.1155/2008/924734.

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Various 4-amino-2-[4-(4-substituted phenyl)-5-sulfanyl-4H-1,2,4-triazol-3-yl] phenol (4a-c), 4-amino-2-{4-amino-5-[(4-substituted phenyl)amino]-4H-1,2,4-triazol-3-yl} phenol (5a-c) and 4-amino-2-{5-[(4-substituted phenyl)amino]-1,3,4-thiadiazole-2-yl} phenol (6a-g) were synthesized and evaluated for their antibacterial and antifungal activity. The compounds showed significant antibacterial activity againstS. aureus(gram-positive) andE.coli(gram-negative) bacteria and antifungal activity againstA. nigerfungi using cup plate technique

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2

Mahajan, Jaswant R., and Hugo C. Araújo. "Attempted novel preparation of dihydrocoumarin and coumarin; obtention of aryl acrylates and 3-chloropropionates." Canadian Journal of Chemistry 65, no. 1 (1987): 224–25. http://dx.doi.org/10.1139/v87-035.

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It has been found that, contrary to the published report, there is no noticeable reaction between phenol and methyl acrylate in the presence of aluminum chloride to produce phenyl acrylate (1) and dihydrocoumarin (2). Although products having the reported spectral data can be obtained by the reaction of phenol with acrylyl chloride, these products are actually phenyl acrylate and phenyl 3-chloropropionate (4), there being detected no dihydrocoumarin. This reaction has now been extended to several substituted phenols and some naphthols. Attempts at cyclization of phenyl acrylate, phenyl 3-chlor

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3

Kaválek, Jaromír, Ludmila Hejtmánková, and Vojeslav Štěrba. "Kinetics and mechanism of solvolysis of substituted phenyl N-phenylbenzimidoesters." Collection of Czechoslovak Chemical Communications 52, no. 5 (1987): 1285–97. http://dx.doi.org/10.1135/cccc19871285.

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Kinetics of hydrochloric acid-catalyzed solvolysis of substituted phenyl and methyl N-phenylbenzimidoesters have been studied in methanol, 50 vol. % aqueous methanol, and 50 vol. % aqueous tetrahydrofurane, and the composition of the reaction products has been determined. The rate-limiting step consists in addition of water or methanol to the protonated substrate. The reaction of methyl N-phenylbenzimidoester with both water and methanol and that of substituted phenyl N-phenylbenzimidoesters with methanol produce aniline, the ester (or orthoester) and the corresponding phenol. The reaction of

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4

Truchan, Nadina, Christian Jandl, Alexander Pöthig, Stefan Breitenlechner, and Thorsten Bach. "Access to Biphenyls by Palladium-Catalyzed Oxidative Coupling of Phenyl Carbamates and Phenols." Synthesis 51, no. 16 (2019): 3060–76. http://dx.doi.org/10.1055/s-0037-1611482.

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The oxidative cross-coupling of phenols (3 equiv) to various substituted phenyl N,N-diethylcarbamates was explored with a variety of substrates. Pd(OAc)2 was employed as the catalyst (20 mol%) and K2S2O8 as the stoichiometric oxidant in trifluoroacetic acid as the solvent (50 °C, 2 h). Carbamates without or with a substituent on the phenyl ring (Me, Ph, Cl, OMe) underwent the reaction unless the phenyl substituent was too strongly electron withdrawing (CN). Cross-coupling occurred exclusively in the ortho position relative to the carbamate group. The regioselectivity at the phenol (ortho or pa

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5

Bisaillon, Jean-Guy, François Lépine, Réjean Beaudet, and Michel Sylvestre. "Potential for carboxylation–dehydroxylation of phenolic compounds by a methanogenic consortium." Canadian Journal of Microbiology 39, no. 7 (1993): 642–48. http://dx.doi.org/10.1139/m93-093.

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An anaerobic consortium that carboxylated and dehydroxylated phenol to benzoate, and 2-cresol to 3-methylbenzoic acid, under methanogenic conditions was studied. Phenol induced this transformation activity. Addition of 4-hydroxypyridine or an increase in the concentration of proteose peptone to 0.5% (w/v) delayed the transformation. Phenol enhanced the rate of transformation of 2-cresol whereas 2-cresol delayed the transformation of phenol. Phenols with ortho-substitutions (chloro-, fluoro-, bromo-, hydroxyl-, amino-, or carboxyl-) were transformed to meta-substituted benzoic acids. However, m

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6

Morteza, Shiri, Tajbakhsh Mahmoud, Hosseinnejad Tayebeh, A. Oskooie Hossein, M. Heravi Majid, and Zadsirjan Vahideh. "Hydroarylation of cinnamic acid with phenols catalyzed by acidic ionic liquid [H-NMP]HSO4: computational assessment on substituent effect." Research on Chemical Intermediates 42, no. 7 (2016): 6407–22. https://doi.org/10.1007/s11164-016-2471-5.

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Hydroarylation of cinnamic acid with different substituted phenols, in the presence of acidic ionic liquid, N-methyl-2-pyrrolidonum hydrosulfate ([H-NMP]HSO4) gave the corresponding dihydrocoumarins in high yields and excellent selectivity. Among these substituted phenols, while methyl phenol afforded the corresponding dihydrocoumarin, nitrophenol under the same reaction conditions diverted the course of reaction, affording 3-(4-nitrophenyl)-3-phenylpropanoic acids. We investigated this behavior from the energetic and electronic points of view, using quantum chemistry computational methods. In

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7

Xia, Zilei, Jiadong Hu, Zhigao Shen, Qizheng Yao, and Weiqing Xie. "Re2O7catalyzed dienone-phenol rearrangement." RSC Advances 5, no. 48 (2015): 38499–502. http://dx.doi.org/10.1039/c5ra04931h.

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8

GIMENO, O., M. CARBAJO, F. BELTRAN, and F. RIVAS. "Phenol and substituted phenols AOPs remediation." Journal of Hazardous Materials 119, no. 1-3 (2005): 99–108. http://dx.doi.org/10.1016/j.jhazmat.2004.11.024.

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9

Stoermer, MJ, and DP Fairlie. "A Selective and Versatile Synthesis of Substituted Chromones via Addition of Phenols to Dimethyl Acetylenedicarboxylate." Australian Journal of Chemistry 48, no. 3 (1995): 677. http://dx.doi.org/10.1071/ch9950677.

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Despite many published syntheses of chromones, none has been reported to be both selective for chromones and tolerant of ring substitution. The addition of substituted phenols to dimethyl acetylenedicarboxylate is now reported as a versatile high yield initial step in a simple three-step synthesis of chromone 2-carboxylic acids. Triethylamine being used to deprotonate the substituted phenol, the addition to dimethyl acetylenedicarboxylate proceeds under mild conditions and tolerates a wide range of functional groups on the phenol. Although not stereoselective, both fumarate and maleate aryloxy

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10

Bhardwaj, Nivedita, Ajit Kumar Singh, Nancy Tripathi, Bharat Goel, Arindam Indra, and Shreyans K. Jain. "Ni–NiO heterojunctions: a versatile nanocatalyst for regioselective halogenation and oxidative esterification of aromatics." New Journal of Chemistry 45, no. 31 (2021): 14177–83. http://dx.doi.org/10.1039/d1nj02777h.

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Herein, we report a facile method for the synthesis of Ni–NiO heterojunction nanoparticles, which we utilized for the nuclear halogenation reaction of phenol and substituted phenols using N-bromosuccinimide (NBS).

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11

Sarika, Paprayil Reghunadh, Paul Nancarrow, Yassir Makkawi, and Taleb H. Ibrahim. "Preparation and Characterization of Date Palm Bio-Oil Modified Phenolic Foam." Polymers 16, no. 7 (2024): 955. http://dx.doi.org/10.3390/polym16070955.

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In this work, the potential of biomass-derived date palm bio-oil as a partial substitute for phenol in the phenolic resin was evaluated. Date palm bio-oils derived from date palm were used for the partial substitution of phenol in the preparation of phenolic foam (PF) insulation materials. Date palm waste material was processed using pyrolysis at 525 °C to produce bio-oil rich in phenolic compounds. The bio-oil was used to partially replace phenol in the synthesis of phenolic resin, which was subsequently used to prepare foams. The resulting changes in the physical, mechanical, and thermal pro

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12

R., S. Talegaonkar, and S. Burghate A. "pH-metric studies on formation constants of the complexes of substituted thiazolyl Schiff's bases with some lanthanide metal ions." Journal of Indian Chemical Society Vol. 89, Nov 2012 (2012): 1585–89. https://doi.org/10.5281/zenodo.5771932.

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Post Graduate Department of Chemistry, Shri Shivaji Science College, Amravati-444 603, Maharashtra, India <em>E-mail</em> : rupaliyeotikar@gmail.com Manuscript received 22 September 2011, revised 08 February 2012, accepted 09 February 2012 The stability constants of the complexes of La<sup>llI</sup>, Pr<sup>lll</sup> and Sm<sup>III</sup> with 2-[3-(4-methoxy-phenyl)-1-(4-phenyl-thiazol-2-yllmino )-allyl]-4-methyl phenol, 2-[3-pheny 1-1-( 4-pheny 1-thiazol-2-ylim ino )-allyl]-4-methy 1-phenol and 2-[3-( 4- chlorophenyl)-1-(4-phenyl-thiazol-2-ylimino)-allyl]-4-methyl-phenol have been determined

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13

Maryam, Rashid, Khan Rasool, and Ahmed khan Rashid. "Microwave Assisted Catalytic Regio-selective Nitration of Resorcinol and Substituted Phenols." Chemistry Research Journal 3, no. 4 (2018): 17–24. https://doi.org/10.5281/zenodo.13825536.

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Nitration of the organic compounds has been an important area of research with great industrial significance. Nitration of the aromatic substrates is a widely investigated reaction and has been of great industrial significance in industry and organic synthesis. In the present studies, solid phase microwave nitration of various substituted phenols and resorcinol has been investigated. Moreover, regioselective nitration of resorcinol and substituted phenols was optimized using different nitrating agents. The results showed that Cu(NO<sub>3</sub>)<sub>2</sub> proved the most effective nitrating s

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14

Bhosale, Ghanshyam S., Prakash D. Vaidya, Jyeshtharaj B. Joshi, and Raosaheb N. Patil. "Kinetics of Ozonation of Phenol and Substituted Phenols." Industrial & Engineering Chemistry Research 58, no. 18 (2019): 7461–66. http://dx.doi.org/10.1021/acs.iecr.9b00337.

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15

Enache, Teodor Adrian, and Ana Maria Oliveira-Brett. "Phenol and para-substituted phenols electrochemical oxidation pathways." Journal of Electroanalytical Chemistry 655, no. 1 (2011): 9–16. http://dx.doi.org/10.1016/j.jelechem.2011.02.022.

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16

Kidwai, Mazaahir, Arti Jain, Abha Sharma, and Ramesh Chander Kuhad. "Ecofriendly approach for detection of phenols in water using laccase from different fungi." Water Science and Technology 66, no. 2 (2012): 385–93. http://dx.doi.org/10.2166/wst.2012.198.

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Laccase-initiated oxidative coupling reactions of phenol and its derivatives with 4-aminoantipyrene using air as an oxidant has been investigated. The oxidation reaction of phenols and 4-aminoantipyrene is getting a lot of attention due to environmental concerns. Oxidation of simple phenol and 4-aminoantipyrene as a benchmark reaction enabled us to rank the relative oxidation ability of various laccases. Among the laccases tested, laccase from Pycnoporus cinnabarinus successfully yielded 72% antipyrilquinoneimine dye. The present method can also be used to determine p-substituted phenols and c

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17

Tetteh, Samuel, Ruphino Zugle, John Prosper Kwaku Adotey, and Andrews Quashie. "Electronic Spectra of ortho-Substituted Phenols: An Experimental and DFT Study." Journal of Spectroscopy 2018 (October 9, 2018): 1–10. http://dx.doi.org/10.1155/2018/4193657.

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The electronic spectra of phenol, 2-chlorophenol, 2-aminophenol, and 2-nitrophenol have been studied both experimentally and computationally. The effect of the substituents on the solvatochromic behavior of the phenols were investigated in polar protic (methanol) and aprotic (dimethyl sulfoxide (DMSO)) solvents. The spectra of 2-nitrophenol recorded the highest red shift in methanol. The observed spectral changes were investigated computationally by means of density functional theory (DFT) methods. The gas phase compounds were fully optimized using B3LYP functionals with 6-31++G(d,p) bases set

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18

Kiss, László, and Sándor Kunsági-Máté. "Effect of Anodic Pretreatment on the Performance of Glassy Carbon Electrode in Acetonitrile and Electrooxidation of Para-substituted Phenols in Acetonitrile on Platinum and Glassy Carbon Electrode." Periodica Polytechnica Chemical Engineering 65, no. 1 (2019): 133–38. http://dx.doi.org/10.3311/ppch.14311.

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In the first part of the work electropolymerisation of phenol was studied at glassy carbon electrode. Rapid fouling of its surface indicated the formation of coherent poly(phenyleneoxide) layer which was demonstrated by the repeated cyclic voltammetric scans. Effect of anodic pretreatment potential in acetonitrile solvent was also investigated and the results showed that at potentials higher than 2 V glassy carbon electrode becomes deactivated. Preanodisation of glassy carbon electrode at 3 V in acetonitrile resulted in diminished anodic peak currents by phenols. It was due to the partial deac

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19

Xiong, Yawen, Hongdong Duan, Xia Meng, Zhaoyun Ding, and Weichun Feng. "Highly Selective Synthesis of Chlorophenols under Microwave Irradiation." Journal of Chemistry 2016 (2016): 1–5. http://dx.doi.org/10.1155/2016/2960414.

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Oxychlorination of various phenols is finished in 60 minutes with high efficiency and perfect selectivity under microwave irradiation. These reactions adopt copper(II) chloride (CuCl2) as the catalyst and hydrochloric acid as chlorine source instead of expensive and toxic ones. Oxychlorination of phenols substituted with electron donating groups (methyl, methoxyl, isopropyl, etc.) atortho-andmeta-positions is accomplished with higher conversion rates, lower reaction time, and excellent selectivity. A proposed reaction mechanism is deduced; one electron transfers from CuCl2to phenol followed by

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20

Senthilkumar, V., and K. K. Ilavenil. "Oxidation of few Substituted Phenols and Reaction Mechanism by Heterocyclic Pyrazinium Chlorochromate and It's Biological Activity." Oriental Journal Of Chemistry 39, no. 1 (2023): 161–66. http://dx.doi.org/10.13005/ojc/390119.

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The current investigation focuses on the oxidation of phenol (Phenylic acid) and a few mono substituted phenols in a liquified ethanoic acid medium with pyrazinium chorochromate (PzCC) support. The reaction showed a first kinetic model in PzCC but a fractional order in phenols. The low dielectric constant of the process, which is helped by hydrogen ions, promotes the reaction. The reaction's speed is unaffected by an increase in ionic strength. Meta-substituted phenols, which rely on the field effect for oxidation, are more susceptible to the delocalized effect than para-substituted phenols. T

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21

Gizur, Tibor, György G. Ferenczy, Éva Ágai-Csongor, and György Domány. "Antioxidant Building Blocks I. The Unexpected C-Acetylation of 2,6-Di-tert-butylphenol with Isopropenyl Acetate." Collection of Czechoslovak Chemical Communications 61, no. 8 (1996): 1244–47. http://dx.doi.org/10.1135/cccc19961244.

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While the reaction of some 2-substituted and 2,6-disubstituted phenols with isopropenyl acetate resulted in the corresponding phenol acetates, in the reaction of 2,6-di-tert-butylphenol, a useful starting material of antioxidant building blocks, under the same conditions 4-acetyl-2,6-di- tert-butylphenol was the only product.

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22

Ridha Jaafar, May, Baneen S. Rasool, Asmaa A.Jawad, Abbas K. Abbas, Daniah Muneam Hamid, and ,Reem Husam Al-Tabra. "Synthesis and Biological Activity of a Novel Derivatives of Schiff Base." Al-Nahrain Journal of Science 27, no. 5 (2024): 1–9. https://doi.org/10.22401/anjs.27.5.01.

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Since their discovery, Schiff bases have been essential compounds that can be found in nature or synthesized in laboratories. We synthesized new schiff bases (1-3), namely as 4-{(E)-[4-(chloromethyl)phenyl]diazenyl}-2-{[(4-substituted phenyl)imino]-methyl}phenol. These derivatives are synthesized from the 5-{(E)-[4-(chloromethyl)phenyl]diazenyl}-2-hydroxybenzaldehyde and 4-substituted aniline, such as 4-methyl aniline, 4-chloro aniline,and4-methoxy aniline. Characterization of these compounds by FTIR and 1HNMRspectroscopy. The diffusion method is used to determine how these compounds interact

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23

McBride, M. B., and King-Hsi Kung. "Adsorption of phenol and substituted phenols by iron oxides." Environmental Toxicology and Chemistry 10, no. 4 (1991): 441–48. http://dx.doi.org/10.1002/etc.5620100403.

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24

Shukla, D., N. P. Schepp, N. Mathivanan, and L. J. Johnston. "Generation and spectroscopic and kinetic characterization of methoxy-substituted phenoxyl radicals in solution and on paper." Canadian Journal of Chemistry 75, no. 12 (1997): 1820–29. http://dx.doi.org/10.1139/v97-615.

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A number of methoxy-substituted phenoxyl radicals have been generated and characterized by laser flash photolysis techniques in solution and on paper. The radicals have been produced by three routes in solution: hydrogen abstraction from phenols by tert-butoxyl radical, photolysis of α-aryloxyacetophenones, and direct excitation of phenols. Most of the phenoxyl radicals studied have a characteristic absorption near 400 nm; the ortho-substituted radicals have an additional broad absorption in the visible in non-hydroxylic solvents (e.g., 650 nm for 2-methoxyphenoxyl radical). The relative inten

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25

Chen, Jiang, Zhe-Peng Jin, Bing-Fei Gao, Jian-Hua Yu, and Jie-Ying Wu. "2-{(E)-[4-(Diphenylamino)phenyl]iminomethyl}phenol." Acta Crystallographica Section E Structure Reports Online 70, no. 3 (2014): o314. http://dx.doi.org/10.1107/s1600536814003195.

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The asymmetric unit of the title Schiff base molecule, C25H20N2O, contains two independent molecules. In each molecule, the C=N bond is in anEconformation. The most significant difference between the two molecules is seen for the dihedral angles between the methoxy-substituted benzene ring and the two phenyl rings, which are 85.5 (1) and 82.3 (1)° in the first molecule, and 49.0 (1) and 40.4 (1)° in the second. This conformational difference is reflected in the central C=N—C...;C torsion angle, which is 28.7 (2)° in the first molecule and −29.8 (3)° in the other. In each molecule, there is an

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26

Journal, Baghdad Science. "Synthesis and Identification of Some New Derivative of Trimethoprim and Paracetemol Drugs." Baghdad Science Journal 10, no. 1 (2013): 182–88. http://dx.doi.org/10.21123/bsj.10.1.182-188.

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In this research two series of the new derivatives of Trimethoprim and paracetamol drugs have been prepared which known as a high medicinal effectiveness. Series (A) is including the interaction of diazonium salt of trimethoprim and coupling with some substituted phenol compounds (2-amino phenol, 3-ethyl phenol, 1-naphthol, 2-nitro phenol, Salbutamol). Series (B) is including the interaction coupling alkali solution of paracetamol with diazonium salt of some substituted aniline compounds (Benzedine, 2, 3-di chloro aniline, Trimethoprim, Anilinium chloride, 2-nitro- 4-chloro aniline).Chemical s

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27

Thamer, Hind F., Saadiyah A. Dhahir, Sanaa A. Al-Sahib, and Issra A. Kattom. "Synthesis and Identification of Some New Derivative of Trimethoprim and Paracetemol Drugs." Baghdad Science Journal 10, no. 1 (2013): 182–88. http://dx.doi.org/10.21123/bsj.2013.10.1.182-188.

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In this research two series of the new derivatives of Trimethoprim and paracetamol drugs have been prepared which known as a high medicinal effectiveness. Series (A) is including the interaction of diazonium salt of trimethoprim and coupling with some substituted phenol compounds (2-amino phenol, 3-ethyl phenol, 1-naphthol, 2-nitro phenol, Salbutamol). Series (B) is including the interaction coupling alkali solution of paracetamol with diazonium salt of some substituted aniline compounds (Benzedine, 2, 3-di chloro aniline, Trimethoprim, Anilinium chloride, 2-nitro- 4-chloro aniline).Chemical s

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28

Ilavenil, K. K., A. Kasthuri, and K. Anbarasu. "OXIDATION KINETICS OF PHENOL, ITS DERIVATIVES AND SOME PARA-SUBSTITUTED PHENOL BY PYRAZINIUM CHLOROCHROMATE IN ACIDIC MEDIUM: A NON-LINEAR HAMMETT PLOTS." RASAYAN Journal of Chemistry 15, no. 03 (2022): 1660–67. http://dx.doi.org/10.31788/rjc.2022.1536920.

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In the presence of perchloric acid, the kinetics and oxidation of phenol, phenoxy acetic acid, and a few para-substituted phenols and phenoxyacetic acids by pyrazinium chlorochromate (PzCC) were investigated in acetic acid and water medium. The reaction was fractional-order for both the substrates and unit order for oxidant and acid. The products of oxidation are quinone. Comparing the reaction rate for phenols and their derivatives revealed a similar behavior. The oxidation and kinetics of phenol and its derivatives are established using the non-linear Hammett plots plot which reveal that par

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29

Bauerová, Ingrid, and Miroslav Ludwig. "Substituent Effects on the Base-Catalysed Hydrolysis of Phenyl Esters of para-Substituted Benzoic Acids." Collection of Czechoslovak Chemical Communications 65, no. 11 (2000): 1777–90. http://dx.doi.org/10.1135/cccc20001777.

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Seventeen model phenyl esters of 4-substituted benzoic acids were synthesised by the reaction of substituted benzoyl chlorides with phenol in aqueous alkaline solutions (Schotten-Baumann reaction), in pyridine (Einhorn reaction), or by the reaction of substituted benzoic acids with phosphorus oxychloride. Structures and purity of the model compounds were confirmed by 1H NMR and 13C NMR spectroscopy as well as by HPLC and elemental analysis. Phenyl 4-aminobenzoate was synthesised by reduction of phenyl 4-nitrobenzoate in methanol on palladium. Kinetics of base-catalysed hydrolysis of model phen

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Mary Lubi, C., and Eby Thomas Thachil. "Effect of Phenol-CNSL Formaldehyde Copolymer on Thermal Ageing of NBR." Progress in Rubber, Plastics and Recycling Technology 21, no. 3 (2005): 201–17. http://dx.doi.org/10.1177/147776060502100303.

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Cashew nut shell liquid (CNSL) is a cheap agro-by-product and renewable resource which consists mainly of substituted phenols. A CNSL based resin was used in this study to modify the aging properties of butadiene-acrylonitrile rubber (NBR). The resin was a copolymer obtained by condensing a mixture of phenol and CNSL with hexamethylene tetramine. The effect of the resin on the ageing of NBR vulcanizates was studied by following changes in tensile strength, elongation at break, modulus and tear strength. Resins with different phenol/formaldehyde ratios and CNSL/phenol ratios were incorporated i

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31

Roy, H. N., Pijush K. Roy, SA Shumi, MM Rahman, and MN Islam. "Smooth Dearomatization of Some Phenols by BAIB and Facile Aerial Oxidation of Two γ-Hydrogen Containing Anthraquinones." Journal of the Bangladesh Chemical Society 25, no. 1 (2012): 21–29. http://dx.doi.org/10.3329/jbcs.v25i1.11767.

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At ambient condition bis(acetoxy)iodo benzene (BAIB) oxidized phenol and substituted phenols and the oxidized products undergo easy annulation reaction with cyanophthalide at ice cold temperature. Methyl or ethyl group at position C-1 in anthraquinone system has participated smooth aerial oxidation under sunlight. DOI: http://dx.doi.org/10.3329/jbcs.v25i1.11767 Journal of Bangladesh Chemical Society, Vol. 25(1), 21-29, 2012

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32

Bawrlin, GB, SJ Ireland, TMT Nguyen, B. Kotecka, and KH Rieckmann. "Potential Antimalarials. XX. Mannich Base Derivatives of 2-[7-Chloroquinolin-4-ylamino and 7-Bromo(and 7-trifluoromethyl)-1,5-naphthyridin-4-ylamino]-4-chloro(or 4- or 6-t-Butyl or 4- or 5-fluoro)phenols and 4(or 6)-t-Butyl-2-(7-trifluoromethylquinolin-4-ylamino)phenol." Australian Journal of Chemistry 47, no. 6 (1994): 1143. http://dx.doi.org/10.1071/ch9941143.

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Syntheses are reported for some mono- and di-Mannich base derivatives of 4-chloro-, 3- or 4-fluoro-, or 2- or 4-t-butyl-substituted 2-(7′-chloroquinolin-4′-ylamino)phenols and 2-[7′-bromo(and 7′-trifluoromethyl)-1′,5′-naphthyridin-4′-ylamino]phenols. In tests against the FC-27 isolate of Plasmodium falciparum, the most active compound was 2-(7′-chloroquinolin-4′-ylamino)-5-fluoro-4,6-bis(piperidin-1′-ylmethyl)phenol (16) with IC50 12.2 nM.

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33

Arvind, Mahesh. "Biodegradation of Phenolic Pollutants." Mapana - Journal of Sciences 12, no. 4 (2013): 9–18. http://dx.doi.org/10.12723/mjs.27.2.

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Phenolic compounds are important constituents of petrochemical waste waters arising from transformation processes. Phenol together with substituted halophenols, nitrophenols and alkyl phenols are the main constituents. An Arthrobacter citreus spp. strain MSA - 2005 initially selected for growth at the expense of phenol as the sole source of carbon and energy, was enriched with phenolic compounds such as 4-nitrophenol, 4- chlorophenol and 4-methyl phenol. Metabolization of these compounds upto their maximum levels in the mineral salt medium was studied. The complete metabolization of 4-nitrophe

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Dar’in, Dmitry, Mikhail Krasavin, Anton V. Budeev, and Grigory Kantin. "Continued Exploration of Trifunctional Alkyl 4-Chloro-2-diazo-3-oxobutanoates: Streamlined Entry into [1,2,3]Triazolo[5,1-c][1,4]benzoxazines and [1,2,3]Triazolo[5,1-c][1,4]benzoxazepines." Synthesis 53, no. 12 (2021): 2155–66. http://dx.doi.org/10.1055/a-1348-9031.

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AbstractFurther exploration of the trifunctional character of previously introduced alkyl 4-chloro-2-diazo-3-oxobutanoates in reactions with N-protected substituted o-aminophenols followed by deprotection provided a convenient entry into [1,2,3]triazolo[5,1-c][1,4]benzoxazines, which are of high medicinal importance, as documented in the literature. The same approach applied to N-protected substituted o-(aminomethyl)phenols afforded [1,2,3]triazolo[5,1-c][1,4]benzoxazepines, which are practically unexplored compounds from a medicinal chemistry perspective. The syntheses start with SN2-type alk

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35

Valkonen, Arto, Erkki Kolehmainen, Aleksandra Grzegórska, Borys Ośmiałowski, Ryszard Gawinecki, and Kari Rissanen. "Two (E)-2-({[4-(dialkylamino)phenyl]imino}methyl)-4-nitrophenols." Acta Crystallographica Section C Crystal Structure Communications 68, no. 8 (2012): o279—o282. http://dx.doi.org/10.1107/s0108270112025589.

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The slow evaporation of analytical NMR samples resulted in the formation of crystals of (E)-2-({[4-(dimethylamino)phenyl]imino}methyl)-4-nitrophenol, C15H15N3O3, (I), and (E)-2-({[4-(diethylamino)phenyl]imino}methyl)-4-nitrophenol, C17H19N3O3, (II). Despite the small structural difference between these twoN-salicylideneaniline derivatives, they show different space groups and diverse molecular packing. The molecules of both compounds are close to being planar due to an intramolecular O—H...N hydrogen bond. The 4-alkylamino-substituted benzene ring is inclined at an angle of 13.44 (19)° in (I)

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36

Kasokat, T., R. Nagel, and K. Urich. "The metabolism of phenol and substituted phenols in zebra fish." Xenobiotica 17, no. 10 (1987): 1215–21. http://dx.doi.org/10.3109/00498258709167413.

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Joglekar, H. S., S. D. Samant, and J. B. Joshi. "Kinetics of wet air oxidation of phenol and substituted phenols." Water Research 25, no. 2 (1991): 135–45. http://dx.doi.org/10.1016/0043-1354(91)90022-i.

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38

Fitzgerald, J. S. "The preparation of some methyl-substituted phenols and phenol alcohols." Journal of Applied Chemistry 5, no. 7 (2007): 289–96. http://dx.doi.org/10.1002/jctb.5010050701.

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39

Chadda, Satish K., and Ronald F. Childs. "The use of homogeneous and heterogeneous Lewis acids to catalyse the photoisomerizations of phenols." Canadian Journal of Chemistry 63, no. 12 (1985): 3449–55. http://dx.doi.org/10.1139/v85-566.

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The reaction of methyl substituted phenols with CH2Cl2 solutions of Al2Br6, leads to the formation of two types of complexes. In both of these the aluminum is bound to the oxygen atom of the phenol but they differ in that the OH proton can either remain on oxygen, oxonium complex, or migrate to one, usually the para, ring carbon, keto complex. The equilibrium position between the two types of complex depends on the position of the methyl groups. Irradiation of a complex of the keto type leads initially to the formation of a complexed bicyclo[3.1.0]hexenone and subsequently to the formation of

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40

Agamaliyev, Zaur Z., Vagif M. Abbasov, Chingiz K. Rasulov, Igrar G. Nazarov, Nigar Sh Rzaeva, and Mehriban V. Naghiyeva. "SYNTHESIS OF SPATIALLY-HINDERED METHYLCYCLOALKYLPHENOLS AND SOME PECULIARITIES OF THEIR AMINOMETHYLATION REACTIONS BY AMINOETHYLNONYLIMIDAZOLINE." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 62, no. 2 (2019): 17–24. http://dx.doi.org/10.6060/ivkkt.20196202.5786.

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The paper deals with the results of cycloalkylation of phenol with 1-methylcyclopentene, 1(3)-methylcyclohexene in the presence of aluminum phenolate catalyst and influence of various parameters on the yield of the target product. The reaction temperature was varied from 220 to 280 °C, the reaction time - from 1 to 7 h, molar ratio of phenol to cyclene – from 1:1 to 1:3 mol/mol, the catalyst amount – from 10 to 25%. Maximum yield of 2,6-di[1(3)-methylcycloalkyl]phenols is obtained under the following conditions: temperature - 260-280 °C, duration - 5-6 h, molar ratio of phenol to 1(3)-methylcy

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41

MAHMUD, M., D. COTE, and P. LECLERC. "Vapor-Phase Fourier-Transform Infrared Spectra of Some Substituted Phenol and Substituted Phenyl Ether Compounds." Analytical Sciences 8, no. 3 (1992): 381–83. http://dx.doi.org/10.2116/analsci.8.381.

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Azizkarimi, Shirin, Reza Omidyan, and Gholamhasan Azimi. "Electronically excited states of protonated phenol and para-substituted phenol." Chemical Physics Letters 555 (January 2013): 19–25. http://dx.doi.org/10.1016/j.cplett.2012.10.053.

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Rasulov, Chingiz K., Zaur Z. Aghamaliyev, Mekhriban V. Nagiyeva, Gulshan D. Gasanova, and Fatma I. Gasimova. "SYNTHESIS AND PROPERTIES OF 2-HYDROXY-5[1(3)-METHYLCYCLOALKYL]-BENZYLAMINOETHYLNONYLIMIDAZOLINES." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 64, no. 4 (2021): 79–84. http://dx.doi.org/10.6060/ivkkt.20216404.6265.

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The paper deals with the results of cycloalkylation of phenol with 1-methylcyclopentene, 1(3)-methylcyclohexene in the presence of KU-23 catalyst and influence of various parameters on the yield of the target product. The reaction temperature was varied from 80 to 140 °C, the reaction time - from 2 to 8 h, molar ratio of phenol to cyclene – from 1:2 to 2:1 mol/mol, the catalyst amount – from 5 to 15%. Maximum yield of para-[1(3)-methylcycloalkyl] phenols is obtained under the following conditions: temperature – 110-120 °C, duration – 5-6 h, molar ratio of phenol to 1(3)-methylcycloalkene – 1:1

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44

Kamruzzaman, Roushown Ali, Rabiul Karim, Samiul Islam Chowdhury, and Tariqul Hasan. "Effect of Flexible Chain on Mesomorphic Properties of Alkyloxy Substituted 4-Chloroazobenzene Liquid Crystals." Asian Journal of Chemistry 33, no. 5 (2021): 1159–64. http://dx.doi.org/10.14233/ajchem.2021.23138.

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Three rod-shaped alkyloxy substituted 4-chloroazobenzene liquid crystals, 1-(4-chlorophenyl)-2-[4- (alkyloxy)phenyl]diazene (hexayl, octyl and nonyl as flexible oxyalkyl chain) have been synthesized by diazotization of p-chloroaniline with phenol and subsequently performed etherification reaction with different alkyl bromides. The structures of the substituted 4-chloroazobenzene liquid crystals have been characterized by spectroscopic methods. The mesomorphic properties of the liquid crystals were examined by polarizing optical microscope (POM) and differential scanning calorimetry (DSC). All

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Shang, Chengyuan, Xiaojuan Zhao, Junwei Li, Jingang Liu, and Wei Huang. "Poly(aryl ether ketone/sulfone)s containing ortho-methyl and pendant trifluoromethyl-substituted phenyl groups: Synthesis and properties." High Performance Polymers 24, no. 8 (2012): 692–701. http://dx.doi.org/10.1177/0954008312449845.

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Two novel bisphenols, 1,1-bis(4′-hydroxy-3′,5′-dimethylphenyl)-1-(3′′-trifluoromethylphenyl)-2,2,2-trifluoroethane (4M6FDO) and 1,1-bis(4′-hydroxy-3′,5′-dimethylphenyl)-1-[3′′,5′′-bis(trifluoromethyl)phenyl]-2,2,2-trifluoroethane (4M9FDO), with methyl groups ortho-substituted to the phenol groups, bulky trifluoromethyl-substituted phenyl groups and trifluoromethyl groups in the structure, were synthesized and characterized. The bisphenols were polymerized with 4,4′-difluorobenzophenone and bis(4-fluorophenyl) sulfone, respectively, via a aromatic nucleophilic substitution polycondensation to a

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Habibullah, Mohammed, and Stanley Walker. "Dielectric studies of association in phenol and 2-alkyl-substituted phenols." Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases 85, no. 10 (1989): 3145. http://dx.doi.org/10.1039/f19898503145.

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Adhikari, Sushil, Maria Auad, Brian Via, Ajay Shah, and Vivek Patil. "Production of Novolac Resin after Partial Substitution of Phenol from Bio-Oil." Transactions of the ASABE 63, no. 4 (2020): 901–12. http://dx.doi.org/10.13031/trans.13798.

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HighlightsBio-oil was used to produce novolac resin.Bio-oil interacted with phenol and altered the reaction rate and equilibrium.Comparable performance was observed with a low amount of substitution.Abstract. Commercially produced bio-oil with a high content of pyrolytic lignin was substituted for phenol in novolac phenol-formaldehyde (PF) resin production. The reaction progress was tracked, and products were analyzed. Bio-oil substitution resulted in lower conversion rates for both formaldehyde and phenol. Substitution higher than 10 mol% increased the ortho to para ratio and enhanced thermal

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Suhas, Sarita Kushwaha, Monika Chaudhary, et al. "Effect of Substituent Groups on the Adsorption Efficiency of Phenols by Activated Carbon Developed by Hydrothermally Treated Phyllanthus Emblica Fruit Stone." Toxics 12, no. 12 (2024): 874. https://doi.org/10.3390/toxics12120874.

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In this study, the novel activated carbon developed from Phyllanthus emblica fruit stone, through hydrothermal treatment at low pressure and temperature, was utilized for the removal of 4-nitrophenol, 4-chlorophenol, and phenol from water. The activated carbon produced (AC-HTPEFS) showed a well-developed porosity with a surface area of 569 m2 g−1 and a total pore volume of 0.342 cm3 g−1. The adsorption process was explored and efficiently applied regarding the removal of phenols and substituted phenols from wastewater. Thermodynamic analyses indicated that the adsorption process was endothermi

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V., SHANMUGASUNDARAM, and NATARAJAN M. "Dielectric Polarisation Studies of Complexes of Aniline with Phenol or Substituted-phenols." Journal of Indian Chemical Society Vol. 65, Jul 1988 (1988): 479–81. https://doi.org/10.5281/zenodo.6279891.

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Department of Physics, Annamalai University, Annamalainagar-608 002 <em>Manuscript received 2 March 1987, revised 13 April 1988, accepted 25 April 1988</em> The formation or complexes between aniline and phenol and substituted-phenols brings about the change in the dielectric properties of the systems. These changes are used to evaluate the formation constant and the dipole moment of the complexes using Few and Smith dielectric polarisation method The dipole moment values and hence the interaction moments of the adducts are calculated by proposing possible structures. Using thes

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Romanovskaya, Irina, Victor Kuz’min, Olga Oseychuk, Eugeniy Muratov, Anatoliy Artemenko, and Sergei Andronati. "QSPR Analysis of Peroxidase Substrates Reactivity." Chemistry & Chemical Technology 3, no. 4 (2009): 255–61. http://dx.doi.org/10.23939/chcht03.04.255.

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Quantitative structure-property relationship (QSPR) analysis of phenol derivatives reactivity in the horseradish peroxidase catalyzed oxidative reactions was carried out. The statistic models, which describe the substituted phenols reactivity (Кm-1, Vmax) quite adequately, were obtained by multiple linear regression and partial least squares (PLS) methods. The electronic parameters of molecules, their lipophylicity, molecular refraction, and form parameters were used as descriptors for molecular structure. The obtained models allow to predict the reactivity of the new phenolic substrates with

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