نتایج جستجو برای: dicarboxylic acid

تعداد نتایج: 748042  

2005

detected. Ii both cases malonic acid was by far the most abundant product. The traces of glutaric and adipic acid in the oxidation products of the C18 and C1,9 acid respectively, can be explained by the presence of C20 and C21 pentaenoic acid, from which the above dicarboxylic acids are the known oxidation products. However, the possible presence of small amounts of an isomeric octadecatetraeno...

Journal: :Chemical communications 2005
Tomislav Friscić Leonard R MacGillivray

A linear template in the form of a bipyridine has been developed and is shown to direct a single-crystal-to-single-crystal [2 + 2] photodimerisation of a dicarboxylic acid.

Journal: :Chemical communications 2008
Yoshitane Imai Kakuhiro Kawaguchi Nobuo Tajima Tomohiro Sato Reiko Kuroda Yoshio Matsubara

Spontaneously resolvable conglomerate crystals are obtained by combining racemic (rac)-1,1'-binaphthyl-2,2'-dicarboxylic acid and rac-1,2-diphenylethylenediamine, and this spontaneous resolution system is induced by water which is present in the crystallization solvent.

Journal: :Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2012
Norihiro Tada Yuki Ikebata Tomoya Nobuta Shin-ichi Hirashima Tsuyoshi Miura Akichika Itoh

This paper reports a useful method for facile direct syntheses of aromatic methyl esters from methyl aromatics by aerobic photo-oxidation using anthraquinone-2,3-dicarboxylic acid as an organophotocatalyst.

Journal: :Chemical communications 2010
Zong-Quan Wu Yoshio Furusho Hidekazu Yamada Eiji Yashima

A hetero-stranded double helix with a controlled helix sense was designed and synthesized from an optically active dimeric amidine and its complementary achiral dicarboxylic acid strand with conjugated m-diethynylbenzene backbones, being stabilized by the salt bridges.

2007
Nikmala S. Tan Barbora Brazdova Nataliya M. Samoshina Vyacheslav V. Samoshin

Novel carbasugars derived from cyclohexane-1,2-dicarboxylic acid were synthesized and tested for inhibitory activity towards fungal glycosidases from Aspergillus oryzae and Penicillium canescens. Significant inhibition was observed, which magnitude depended on configuration of substituents.

Journal: :Chemical communications 2012
Abhishek Dutta Chowdhury Ritwika Ray Goutam Kumar Lahiri

Fe(BF(4))(2)·6H(2)O with pyridine-2,6-dicarboxylic acid and PhIO can efficiently catalyze the regioselective oxidation of terminal alkene derivatives to aldehydes under mild and benign reaction conditions.

Journal: :Bioresource technology 2011
Jae-Won Lee Thomas W Jeffries

Dicarboxylic organic acids have properties that differ from those of sulfuric acid during hydrolysis of lignocellulose. To investigate the effects of different acid catalysts on the hydrolysis and degradation of biomass compounds over a range of thermochemical pretreatments, maleic, oxalic and sulfuric acids were each used at the same combined severity factor (CSF) values during hydrolysis. Xyl...

2003
David L. Craft Krishna M. Madduri Mark Eshoo Ron Wilson

Candida tropicalis ATCC 20336 excretes , -dicarboxylic acids as a by-product when cultured on n-alkanes or fatty acids as the carbon source. Previously, a -oxidation-blocked derivative of ATCC 20336 was constructed which showed a dramatic increase in the production of dicarboxylic acids. This paper describes the next steps in strain improvement, which were directed toward the isolation and char...

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