188428-48-0Relevant articles and documents
Novel method for asymmetric synthesis of (1S,2S)-2-fluorocyclopropanecarboxylic acid under catalysis of chiral rhodium catalyst
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Paragraph 0124-0125; 0128-0129, (2019/12/02)
The invention provides a novel method for asymmetric synthesis of (1S, 2S)-2-fluorocyclopropanecarboxylic acid under catalysis of a chiral rhodium catalyst. The chiral rhodium catalyst not only can catalyze 1-fluoro-1-benzenesulfonyl ethylene and ethyl di
PROCESS FOR PREPARING HALOGENATED CYCLOPROPANE DERIVATIVES
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, (2008/06/13)
A process for preparing compounds represented by the following general formula (I) wherein X represents chlorine atom or other and R represents alkoxy group, amino group or other, which comprises the step of allowing a compound represented by the formula: CH2═CXF react with a compound represented by the formula: N2CHCOR in the presence of a catalyst containing a metal atom such as a transition metal of group 8 together with chiral carboxylic-type or amide-type ligands to preferentially obtain a stereoisomer of the compound of the general formula (I) wherein the stereochemical configuration at the 1-position is S-configuration
Resolution of cis-2-fluorocyclopropanecarboxylic acid by a microbial enantioselective hydrolysis
Imura, Akihiro,Itoh, Motohiro,Miyadera, Akihiko
, p. 3047 - 3052 (2007/10/03)
The important key intermediate of quinolone analogue synthesis, (1S,2S)- 2-fluorocyclopropanecarboxylic acid, was prepared enantioselectively by a microbial resolution. One of the strains with the highest enzymatic specificity was selected from soil and when lyophilized cells were treated with corresponding ester, the remaining (1S,2S)-ester was obtained with high enantiomeric purity (98% e.e.).
