A microbially-based approach for the synthesis of chiral secondary alcohols bearing the difluoromethyl or chlorodifluoromethyl group
A synthetic approach to both enantiomers of the secondary alcohols , involving the stereoselective hydrolysis of ester derivatives, is described.The absolute configurations of these difluoromethylated or chlorodifluoromethylated molecules were determined.
This invention relates to alkylamino and alkyl amino alkyl diarylketones of the formula STR1 where Ar is aryl of the formula STR2 where V is hydrogen, halogen, loweralkyl, loweralkoxy, CF3, No2 and u is an integer of 1 to 3; X and Y
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(2008/06/13)
An efficient and general method for the reformatsky-type reaction of chlorodifluoromethyl ketones with carbonyl compounds giving α,α-difluoro-β-hydroxy ketones1)
Chlorodifluoromethyl ketones CF2ClCOR, where R is an alkyl, aryl, and l-alkynyl group, underwent the Reformatsky-type aldol reaction with a wide variety of aldehydes or ketones in the presence of acid-washed zinc dust and copper(I) chloride or
Kuroboshi,Ishihara
p. 428 - 437
(2007/10/02)
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