Hydrogen‐Bonding Assisted Catalytic Kinetic Resolution of Acyclic β‐Hydroxy Amides
作者:Arka Porey、Bhaskar Deb Mondal、Joyram Guin
DOI:10.1002/anie.202015004
日期:2021.4.12
Enantioenriched acyclic α‐substituted β‐hydroxy amides are valuable compounds in chemical, material and medicinal sciences, but their enantioselective synthesis remains challenging. A catalytic kinetic resolution (KR) of such amides with selectivity factor(s) up to >200 is developed via enantioselective acylation of primary alcohol with N‐heterocyclic carbene. An enhanced selectivity for the catalytic
Dynamic kinetic resolution of racemic tropic acid ethyl ester and its derivatives
作者:Mary Rose Atuu、M. Mahmun Hossain
DOI:10.1016/j.tetlet.2007.03.143
日期:2007.5
The dynamic kinetic resolution of racemic mixtures of tropic acid ethyl ester under substrate racemizing conditions was studied using lipase PS with a ruthenium catalyst. Isopropenyl acetate was used as an acyl donor, since it was found to be compatible with both catalysts; this resulted in an efficient dynamic kinetic resolution. With this process, a variety of racemic tropic acid ethyl esters were
Zueger, Max F.; Giovannini, Fabio; Seebach, Dieter, Angewandte Chemie, 1983, vol. 95, # 12, p. 1024
作者:Zueger, Max F.、Giovannini, Fabio、Seebach, Dieter
DOI:——
日期:——
Kinetic resolution of tropic acid ethyl ester and its derivatives by lipase PS
作者:Mary Rose Atuu、Syed J. Mahmood、Frank Laib、M. Mahmun Hossain
DOI:10.1016/j.tetasy.2004.08.013
日期:2004.10
The first kinetic resolution of tropicacid ethyl ester (TAEE) with lipase PS and vinyl acetate as an acylating agent is reported. The resulting (S)-(−)-3-acetoxy tropicacid ethyl ester and (R)-(+)-tropic acid ethyl ester are produced in high yields and in excellent ee (87–94%). The method has been extended to resolve a variety of tropicacid ester derivatives. In addition, an improved method for