Results 111 to 120 of about 43,923 (277)

Chiral organocatalysts based on lipopeptide micelles for aldol reactions in water [PDF]

open access: yes, 2017
A comprehensive study of the self-assembly in water of a lipopeptide consisting of a sequence of L-proline, L-arginine and L-tryptophan with a hydrocarbon chain has been performed.
Aguilar, A. M.   +7 more
core   +1 more source

Gold Nanotriangles as Selective Catalysts for Cyclohexanol and Cyclohexanone Production

open access: yesApplied Sciences, 2018
The search for sustainable catalytic oxidation processes remains a challenge. One process of utmost industrial and economic importance is the selective oxidation of cyclohexane, in the route of nylon-6,6 production, which requires urgent improvement ...
Inês A. S. Matias   +4 more
doaj   +1 more source

Regulation of the \u3cem\u3eEscherichia coli\u3c/em\u3e Tryptophan Operon by Early Reactions in the Aromatic Pathway [PDF]

open access: yes, 1970
7-Methyltryptophan (7MT) or compounds which can be metabolized to 7MT, 3-methylanthranilic acid (3MA) and 7-methylindole, cause derepression of the trp operon through feedback inhibition of anthranilate synthetase. Tyrosine reverses 3MA or 7-methylindole
Held, William A., Smith, Oliver H.
core   +1 more source

Highly efficient and reusable CNT supported iron(II) catalyst for microwave assisted alcohol oxidation [PDF]

open access: yes, 2016
The highly efficient eco-friendly synthesis of ketones (yields over 99%) from secondary alcohols is achieved by combination of [FeCl2{eta(3)-HC(pz)(3)}] (pz = pyrazol-1-yl) supported on functionalized multi-walled carbon nanotubes and microwave ...
Carabineiro, S. A. C.   +4 more
core   +1 more source

Cyclohexanone Oxidation over H3PMo12O40 Heteropolyacid via Two Activation Modes Microwave Irradiation and Conventional Method

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2019
The adipic acid (AA), important precursor for Nylon production, was synthesized from cyclohexanoneoxidation by two ways, microwaves irradiation and  conventional method (under reflux) using H3PMo12O40 heteropolyacid as catalyst in the presence of ...
Yasmina Idrissou   +5 more
doaj   +1 more source

An efficient, microwave-assisted, one-pot synthesis of novel 5,6,7,8-tetrahydroquinoline-3-carbonitriles [PDF]

open access: yesJournal of the Serbian Chemical Society, 2011
An efficient, microwave-assisted synthesis of novel 2-alkoxy-5,6,7,8--tetrahydroquinoline-3-carbonitriles, which have not hitherto been reported, via reactions of cyclohexanone and arylidene malononitriles in the corresponding alcohols in presence of ...
VIRESH H. SHAH   +3 more
doaj  

Epoxidation of cyclohexene with cyclohexyl hydroperoxide

open access: yesТонкие химические технологии
Objectives. To investigate the regularities of the process of joint production of epoxycyclohexane, cyclohexanol, and cyclohexanone using the cyclohexene epoxidation reaction with cyclohexyl hydroperoxide in the presence of an ammonium paramolybdate ...
E. A. Kurganova   +8 more
doaj   +1 more source

Isothermal vapour–liquid equilibria in cyclohexanone + dichloroalkane binary mixtures at temperatures from 298.15 to 318.15 K [PDF]

open access: yesJournal of the Serbian Chemical Society, 2011
The vapour pressures of binary mixtures of cyclohexanone + dichloroalkane (1,3-dichloropropane and 1,4-dichlorobutane) were measured at temperatures between 298.15 and 318.15 K. The vapour pressures vs.
DANA DRAGOESCU   +3 more
doaj  

Development of automated analytical capability for the early detection of diabetes mellitus [PDF]

open access: yes
The total profile of volatile metabolites in urine of patients with diabetes mellitus was studied. Because of the drastic abnormalities in the metabolism of carbohydrates, lipids, and proteins connected with diabetes it was expected that apart from ...
Zlatkis, A.
core   +1 more source

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