نتایج جستجو برای: primary alcohols

تعداد نتایج: 652515  

Journal: :The Journal of organic chemistry 2006
Christopher W G Au Stephen G Pyne

Chiral alpha-hydroxy aldehydes generated in situ by the ADH reaction of vinyl sulfones undergo a borono-Mannich reaction with beta-styrenyl boronic acid and primary amines to give anti-1,2-amino alcohols in high enantiomeric purities (83-95% ee). This new method allows much more rapid access to these valuable chiral building blocks that has been used in a short formal synthesis (10 synthetic st...

Journal: :Applied and environmental microbiology 1983
C T Hou R N Patel A I Laskin I Barist N Barnabe

NAD-linked alcohol dehydrogenase activity was detected in cell-free crude extracts from various propane-grown bacteria. Two NAD-linked alcohol dehydrogenases, one which preferred primary alcohols (alcohol dehydrogenase I) and another which preferred secondary alcohols (alcohol dehydrogenase II), were found in propane-grown Pseudomonas fluorescens NRRL B-1244 and were separated from each other b...

Journal: :Clinical chemistry 1975
H M Liebich O Al-Babbili A Zlatkis K Kim

We studied the aliphatic alcohols in 100 urines from 25 patients with diabetes mellitus under treatment with insulin, oral antidiabetic medication, or special diet. The procedure involves adsorption of the low-molecular-weight urinary metabolites on a porous polymer of 2,6-diphenyl-p-phenylene oxide (Tenax GC), gas-chromatographic separation, mass spectrometric identification, and mass fragment...

2013
Dominik Pfaff Gregor Nemecek Joachim Podlech

Carbonitriles and alcohols react in a Lewis acid-promoted Pinner reaction to carboxylic esters. Best results are obtained with two equivalents of trimethylsilyl triflate as Lewis acid. Good yields are achieved with primary alcohols and aliphatic or benzylic carbonitriles, but the straightforward synthesis of acrylates and benzoates starting with acrylonitrile and benzonitrile, respectively, is ...

2014
Sumit Chakraborty Paraskevi O. Lagaditis Moritz Förster Elizabeth A. Bielinski Nilay Hazari Max C. Holthausen William D. Jones Sven Schneider

Acceptorless dehydrogenation of alcohols, an important organic transformation, was accomplished with welldefined and inexpensive iron-based catalysts supported by a cooperating PNP pincer ligand. Benzylic and aliphatic secondary alcohols were dehydrogenated to the corresponding ketones in good isolated yields upon release of dihydrogen. Primary alcohols were dehydrogenated to esters and lactone...

Journal: :Plant physiology 2009
Ondrej Krinke Matyás Flemr Chantal Vergnolle Sylvie Collin Jean-Pierre Renou Ludivine Taconnat Agnès Yu Lenka Burketová Olga Valentová Alain Zachowski Eric Ruelland

Salicylic acid (SA) plays a central role in defense against pathogen attack, as well as in germination, flowering, senescence, and the acquisition of thermotolerance. In this report we investigate the involvement of phospholipase D (PLD) in the SA signaling pathway. In presence of exogenous primary alcohols, the production of phosphatidic acid by PLD is diverted toward the formation of phosphat...

2004
Douglas M. Light

Electroantennograms (EAGs) were recorded from unmated, laboratory-reared, male and female oriental fruit flies, Dacus dorsalis, in response to a range of between C~ and Cl2 carbon chain-length saturated and unaturated aliphatic alcohols and aldehydes, most all of which are known host-plant volatiles. Only two of the 35 compounds tested elicited significantly larger EAGs from female than male an...

Journal: :Current Biology 1997
Kun Bi Michael G. Roth Nicholas T. Ktistakis

BACKGROUND Lipid molecules may play a regulatory role in the secretory pathway of mammals and yeast. The lipid hydrolase phospholipase D (PLD) is one candidate for mediating regulation of secretion, based on the location of this enzyme and its requirements for activation. RESULTS We found that primary alcohols, which block formation of phosphatidic acid (PA) by PLD, inhibited the transport of...

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