نتایج جستجو برای: benzamidobenzoic acid hydrazide

تعداد نتایج: 748241  

Journal: :Antimicrobial agents and chemotherapy 1985
H A Shoeb B U Bowman A C Ottolenghi A J Merola

Oxidation of isonicotinic acid hydrazide (isoniazid) by horseradish peroxidase at the expense of H2O2 yielded reactive species which were able to reduce nitroblue tetrazolium and bleach p-nitrosodimethylaniline. Nicotinic acid hydrazide oxidation did not cause these effects. At slightly alkaline pH, oxidation of isonicotinic acid hydrazide by horseradish peroxidase proceeded at the expense of m...

Journal: :Indian Journal of Pharmaceutical Sciences 2022

A series of hydrazones were synthesized by condensing substituted hydrazides with appropriate carbonyl compounds. The chemical structures the compounds confirmed infrared, proton nuclear magnetic resonance, carbon-13 mass ((4-chloro-phenylamino)-acetic acid [1-(4-chlorophenyl)-phenyl-methylene]-hydrazide and (2,4-dichloro-phenylamino)-acetic (3-oxo- 1,3-dihydro-indole-2-ylidene)-hydrazide only)...

Journal: :Molecules 2006
Milan Cacic Mladen Trkovnik Frane Cacic Elizabeth Has-Schon

(7-Hydroxy-2-oxo-2H-chromen-4-yl)-acetic acid hydrazide (2) was prepared from (7-hydroxy-2-oxo-2H-chromen-4-yl)-acetic acid ethyl ester (1) and 100% hydrazine hydrate. Compound 2, is the key intermediate for the synthesis of several series of new compounds such as Schiff's bases 3a-l, formic acid N'-[2-(7-hydroxy-2-oxo-2H- chromen-4-yl)acetyl] hydrazide (4), acetic acid N'-[2-(7-hydroxy-2-oxo-2...

Abbas Shafiee, Amir Reza Jalilian Mojtaba Tabatabaiee Yazdi

Starting from readily available 2-substituted-4-methylthiazole-5-carboxylic acid hydrazide (1), The title compounds were prepared. The reaction of compound 1 (R=CH3) with formic acid yielded 1-(formyl)-2-(2,4-dimethylthiazole-5-carboxyl) hydrazine (2). Refluxing the latter with phosphorous pentasulfide in xylene afforded compound 3, the reaction of compound 2 with phosphorous pen...

2011
Maher A. El-Hashash Khalid M. Darwish Sameh A. Rizk Fakhry A. El-Bassiouny

The behavior of 2-ethoxy-(4H)-3,1-benzoxazin-4-one (1) towards nitrogen nucleophiles, e.g. ethanolamine, aromatic amines (namely: p-toluidine, p-anisidine, p-hydroxyaniline, o-hydroxyaniline, o-bromoaniline, o-phenylenediamine, p-phenylenediamine, o-tolidinediamine) p-aminobenzoic acid, glucosamine hydrochloride, 2-aminonicotinic acid, 1-naphthalenesulfonic acid hydrazide, n-decanoic acid hydra...

Background and purpose: Zinc (Zn), copper (Cu) and iron (Fe) are essential minerals required for a variety of biomolecules to maintain the normal structure, function, and proliferation of cells. Abnormal metabolism of heavy metals can lead to several chronic pathogenesis. In this study, two new saccharin hydrazide derivatives were synthesized and their chelatory activities were evaluated. Mate...

Journal: :Molecules 2005
A Hussain K Sharba R H Al-Bayati M Aouad N Rezki

In this work 3-chloro-2-chlorocarbonylbenzo[b]thiophene (1) was prepared from cinnamic acid and then converted into the acid hydrazide 2. The azomethines 3a-e were prepared from the corresponding aryl aldehydes and the acid hydrazide 2. Treatment of compound 2 with formic acid gave the N-formyl acid hydrazide 4, which upon refluxing with phosphorous pentoxide or phosphorous pentasulphide in xyl...

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