نتایج جستجو برای: 1 naphthol

تعداد نتایج: 2753227  

2013
Wei Lin Li Li Li Wang Qiu Yan Luo

To develop a new facile protocol for the synthesis of 2'-aminobenzothiazolo-arylmethyl-2-naphthol derivatives, N-bromosuccinimide (NBS) was used as an efficient catalyst for the one-pot synthesis of 2'-aminobenzothiazolo-arylmethyl-2-naphthols in excellent yields from β -naphthol (1 mmol), aromatic aldehydes (1 mmol), and 2-aminobenzothiazole (1 mmol) at 60°C under solvent-free conditions.

Journal: :Chemosensors 2023

Naphthol is a widely used chemical and medical detection biomarker, but it harmful to human health the environment. Therefore, highly sensitive method for naphthol urgently required. Herein, an electrochemical microsensor simultaneous of isomers was fabricated by in situ growth three-dimensional graphene network (3DGN) on screen-printed electrodes. The exhibited good sensing responses typical (...

Journal: :The Biochemical journal 1980
P J Weatherill S M Kennedy B Burchell

1. Antiserum was raised against purified Wistar-rat liver UDP-glucuronyltransferase. 2. UDP-glucuronyltransferase activities towards 4-nitrophenol, bilirubin, 1-naphthol and morphine were co-immunoprecipitated from solubilized Wistar-rat liver preparations. 3. UDP-glucuronyltransferase activities towards 1-naphthol, 2-aminophenol and 4-nitrophenol were precipitated from solubilized Gunn-rat liv...

Journal: :Electrophoresis 2012
Caihong Zhou Shanshan Tong Yunxia Chang Qiong Jia Weihong Zhou

Ionic liquid (IL) based dispersive liquid-liquid microextraction (DLLME) with back-extraction coupled with capillary electrophoresis ultraviolet detection was developed to determine four phenolic compounds (bisphenol-A, β-naphthol, α-naphthol, 2, 4-dichlorophenol) in aqueous cosmetics. The developed method was used to preconcentrate and clean up the four phenolic compounds including two steps. ...

Journal: :Acta Crystallographica Section E Structure Reports Online 2009

Journal: :Chemico-biological interactions 1987
D A Eastmond R C French D Ross M T Smith

Phenol and 1-naphthol, products of benzene and naphthalene biotransformation, are metabolized during O2- generation by xanthine oxidase/hypoxanthine and phorbol myristate acetate (PMA)-stimulated human neutrophils. The addition of 1-naphthol to xanthine oxidase/hypoxanthine incubations resulted in the formation of 1,4-naphthoquinone (1,4-NQ) whereas phenol addition yielded only small quantities...

Journal: :Biomass Conversion and Biorefinery 2021

Abstract The use of chemical additives (1- and 2-naphthol, formaldehyde) in hydrothermal pre-treatments pine, birch, willow wood was evaluated to minimize lignin condensation reactions consequently improve the saccharification pre-treated materials. residual hydrolysis lignins were then tested preparation polylactic acid (PLA)-based composites. results showed that addition 2-naphthol pre-treatm...

Journal: :The journal of physical chemistry. A 2012
Dequan Xiao Mirabelle Prémont-Schwarz Erik T J Nibbering Victor S Batista

We study the solvent-induced frequency shifts of the OH-stretching mode of 1-naphthol and 2-naphthol in nonpolar/weakly polar solvents, subject to electronic excitation, with ultrafast UV/mid-infrared pump-probe spectroscopy and theoretical modeling based on Pullin's perturbative treatment of vibrational solvatochromic effects. The model is parametrized at the density functional theory (DFT) le...

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