Biocatalytic Thionation of Epoxides for Enantioselective Synthesis of Thiiranes
作者:Ran Ma、Xia Hua、Cheng‐Li He、Hui‐Hui Wang、Zhu‐Xiang Wang、Bao‐Dong Cui、Wen‐Yong Han、Yong‐Zheng Chen、Nan‐Wei Wan
DOI:10.1002/anie.202212589
日期:2022.12.23
A biocatalytic thionation method is presented for the enantioselective synthesis of thiiranes from epoxides by a halohydrin dehalogenase catalyzed kinetic resolution approach using thiocyanate as a sulfur donor. Various chiral thiiranes bearing aryl and alkyl substituents were synthesized in good yields and enantioselectivities by using recombinant Escherichia coli cells expressing the engineered halohydrin
Pseudomonas oleovorans monooxygenase-catalyzed asymmetric epoxidation of allyl alcohol derivatives and hydroxylation of a hypersensitive radical probe with the radical ring-opening rate exceeding the oxygen-rebound rate
作者:Hong Fu、Martin Newcomb、Chi Huey Wong
DOI:10.1021/ja00015a061
日期:1991.7
Substrate stereocontrol in bromine-induced intermolecular cyclization: asymmetric synthesis of pitavastatin calcium
approach to synthesize pitavastatin calcium (1), an effective HMG-CoAreductaseinhibitor, based on readily available and attractively functionalized (R)-3-chloro-1,2-propanediol is reported. This work highlights an intermolecular diastereoselective bromine-induced cyclization of homoallylic carbonate to meet stereochemical challenges in the synthesis of statins. An efficient route to a new triphenylphosphonium