نتایج جستجو برای: phenol ortho alkylation

تعداد نتایج: 27115  

2015
Nicholas Leventis Suraj Donthula

HCl-Catalyzed Polymerization of Benzoxazine and Chemical Transformations along Pyrolysis to Microporous Carbons in Advanced and Emerging Polybenzoxazine Science and Technology Report Title This chapter describes a room-temperature HCl-catalyzed synthesis of polybenzoxazine aerogels from bisphenol A, formaldehyde and aniline that cuts the typical multi-day high-temperature (?130 oC) route to a f...

Journal: :Supramolecular chemistry 2013
Edward J O'Neil Hua Jiang Bradley D Smith

A series of four related phenol derivatives, with 2,2'-dipicolylamine substituents at the ortho positions, were prepared and their Zn2+ coordination complexes studied by spectroscopic methods. X-ray crystal diffraction analysis of a dinuclear zinc complex with two bridging acetate anions showed a ternary structure with highly charged interior and lipophilic exterior, which helps explain why thi...

2013
L W Lawrence Woo Paul M Wood Christian Bubert Mark P Thomas Atul Purohit Barry V L Potter

4-{[(4-Cyanophenyl)(4H-1,2,4-triazol-4-yl)amino]methyl}phenyl sulfamate and its ortho-halogenated (F, Cl, Br) derivatives are first-generation dual aromatase and sulfatase inhibitors (DASIs). Structure-activity relationship studies were performed on these compounds, and various modifications were made to their structures involving relocation of the halogen atom, introduction of more halogen ato...

2014
V. D. Sarwade K. R. Gawai

Phenols have been recognized as mutagenic and carcinogenic. Industrial effluents possessing phenols causes’ environmental pollution. Present study was planned to investigate the % degradation of phenol using alkaliphilic Bacillus badius D1 with various concentration ranging from 0.42 to 1.68 g/L in alkaline broth of pH-9, in shaking incubator at110 rpm, 37 0 C. The % degradation at lowest conce...

Journal: :Acta pharmaceutica 2004
Milena Jadrijević-Mladar Takac Drazen Vikić Topić Tihana Govorcinović

Gentisamide (GAM, 2,5-dihydroxybenzamide), a minor first-pass metabolite of salicylamide (SAM, 2-hydroxybenzamide), was studied using FT-IR, 1D and 2D homo- and heteronuclear 1H and 13C NMR spectroscopy. GAM was isolated from human urine eight hours after oral administration of SAM. FT-IR, 1H and 13C NMR spectra unequivocally confirmed the chemical structure of GAM through chemical and substitu...

Journal: :Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2008
Manoj Kumar Nayak Peter Wan

In our continuing studies of the generality and mechanistic details of a new type of excited state intramolecular proton transfer (ESIPT), from phenol to adjacent carbon atoms of suitably designed biaryl systems, the photochemical deuterium incorporation at adjacent (proximal) ortho and more distal positions of 2-hydroxy-p-terphenyl (), 2-hydroxy-o-terphenyl (), and 2-(hydroxyphenyl)-9H-fluoren...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1386

امروزه مشتقات t- بوتیل فنل از اهمیت بسیار زیادی در صنعت برخوردار هستند. بطور مثال از این ترکیبات به عنوان حدواسطی برای ساخت آفت کش ها، خوشبو کننده ها، چاشنی ها، حدواسط های دارویی, کرومانها, فنانتهای مورد استفاده در فرایند تولید برخی از روان کننده ها, دسته وسیعی از رزین ها، استرهای فسفات، قارچ کش ها، جوهر چاپ، مینای سیم ها، آنتی اکسیدانت ها, عامل تثبیت کننده پلی وینیل کلرید (pvc) , جاذب پرتو uv,...

Journal: :Applied and environmental microbiology 2002
Dockyu Kim Young-Soo Kim Seong-Ki Kim Si Wouk Kim Gerben J Zylstra Young Min Kim Eungbin Kim

Rhodococcus sp. strain DK17 was isolated from soil and analyzed for the ability to grow on o-xylene as the sole carbon and energy source. Although DK17 cannot grow on m- and p-xylene, it is capable of growth on benzene, phenol, toluene, ethylbenzene, isopropylbenzene, and other alkylbenzene isomers. One UV-generated mutant strain, DK176, simultaneously lost the ability to grow on o-xylene, ethy...

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