نتایج جستجو برای: 3 hydroxyquinoline

تعداد نتایج: 1812007  

Journal: :Dalton transactions 2012
Ananda Kumar Jami Viswanathan Baskar

Depolymerization reactions of organostibonic acids with protic ligands have been investigated. Reaction of arylstibonic acids with 8-hydroxyquinoline (8-HQ), or {2-[1H-pyrazol-5(3)-yl]naphthalene-1-ol} (H(2)naphpz) in a 1 : 1 stoichiometry in refluxing toluene affords adamantane-like L(4)(RSb)(4)O(6) clusters [(p-XC(6)H(4)Sb)(4)(O)(6)(Q)(4)] (where X = Cl (1), Br (2), QH = 8-hydroxyquinoline), ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2008
shahram moradi fatemeh azarakhshi akbar masoumi shahi

protonation of the reactive intermediate produced in the  reaction between trimethyl phosphite and dimethyl acetylenedicarboxylate or diethyl acetylenedicarboxylate by resorcinol, 5-methylresorcinol, 2,5-dihydroxyacetophenone, 4-chloro-2-methylphenol, 4-chloro-3,5-dimethy-lphenol, 4-hydroxypyridine, 2-hydroxypyridine, 3-hydroxypyridine, or 8-hydroxyquinoline leads to vinylphosphonium salts, whi...

Some natural compounds of plants including phenols and alkaloids induce mitosis depressive that are blocked cell division. Field dodder (Cuscuta campestris Yunck.) and eastern dodder (Cuscuta monogyna Vahl.) are the most widespread obligatory parasitic species. In the present study, end of summer 2015, field dodder and eastern dodder are collected from Alhagi maurorum Medik. host and Vine (Viti...

Journal: :Acta crystallographica. Section C, Crystal structure communications 2006
Janet M S Skakle James L Wardell Solange M S V Wardell

Molecules of the title compound, C9H8NO+.Cl-.H2O, are linked into two rings by strong hydrogen bonding via the free water molecules and the Cl- anions. The two hydrogen-bonded rings are joined to give a corrugated chain along [001]. Comparisons with other 8-hydroxyquinoline-based salts are also presented, highlighting similar ring structures in a 1:1 salt with Kemp's triacid (r-1,c-3,c-5-trimet...

2014
Rupankar Paira Tarique Anwar Maitreyee Banerjee Yogesh P Bharitkar Shyamal Mondal Sandip Kundu Abhijit Hazra Prakas R Maulik Nirup B Mondal

A new series of pyrrolo[3',4':3,4]pyrrolo[1,2-a]furoquinolines/phenanthrolines and pyrrolo[1,2-a]phenanthrolines were efficiently built up from an 8-hydroxyquinoline derivative or phenanthroline via 1,3-dipolar cycloaddition reaction involving non-stabilized azomethine ylides, generated in situ from the parent furo[3,2-h]quinoliniums/phenanthroliums, in presence of a copper(II) chloride-phenant...

Journal: :Plant physiology 1984
D L Eskew R M Welch E E Cary

Column chelation chromatography on controlled pore glass-8-hydroxyquinoline was demonstrated to be a very efficient method for removing trace metal contaminants from concentrated macronutrient salt solutions used to prepare nutrient media. By using (63)Ni and (65)Zn radio-isotopes as tracers, controlled pore glass-8-hydroxyquinoline column packings were found to retain 99.9% of the radiotracer ...

In this study, the potential of 8-Hydroxyquinoline grafted SBA-15 to extract of Cu2+ cations from aqueous solutions was investigated. SBA-15 nanoporous silica was chemically grafted with 8-Hydroxyquinoline groupsaccording to the procedure in the literature. The presence of organic groups in the silica framework was demonstrated by FTIR spectrum. The grafted product showed th...

Journal: :Molbank 2022

A simple and efficient protocol for the synthesis of previously unknown 2-(2-(4-methoxyphenyl)furo[3,2-h]quinolin-3-yl)acetic acid was elaborated. The suggested method is based on telescoped multicomponent reaction 8-hydroxyquinoline, 4-methylglyoxal, Meldrum’s acid. studied process includes initial interaction starting compounds in MeCN followed by intramolecular cyclization to target product ...

Journal: :The Journal of biological chemistry 1960
H WEISSBACH T E SMITH J W DALY B WITKOP S UDENFRIEND

Studies in this laboratory (l-3) have dealt with the metabolism of amines derived from tryptophan, such as tryptamine and serotonin. Tryptophan may give rise to additional amines through decarboxylation of kynurenine and 3-hydroxykynurenine. Makino and Arai (4) were the first to suggest this pathway and later showed (5) that m&se liver homogenates convert kynuramine, the decarboxylation product...

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