Chiral Lewis Acid Catalyzed Resolution of Racemic Enol Ester Epoxides. Conversion of Both Enantiomers of an Enol Ester Epoxide to the Same Enantiomer of Acyloxy Ketone
作者:Xiaoming Feng、Lianhe Shu、Yian Shi
DOI:10.1021/jo0108515
日期:2002.5.1
enol ester epoxides via a chiral Lewis acid catalyzed rearrangement. Both enantiomerically enriched enol ester epoxides and alpha-acyloxy ketones can be obtained through this resolution. A positive nonlinear effect is observed in this process. By taking advantage of the mechanistic duality in acid-catalyzed enol ester epoxide rearrangement, we can completely convert a racemic enol ester epoxide into an
Complete Conversion of Racemic Enol Ester Epoxides into Optically Active α-Acyloxy Ketones
作者:Xiaoming Feng、Lianhe Shu、Yian Shi
DOI:10.1021/ja9928982
日期:1999.12.1
METHODS FOR PRODUCING $g(a)-ACYLOXY CARBONYL COMPOUNDS FROM ENOL ESTER EPOXIDES
申请人:COLORADO STATE UNIVERSITY RESEARCH FOUNDATION
公开号:EP1169291A1
公开(公告)日:2002-01-09
US6384265B1
申请人:——
公开号:US6384265B1
公开(公告)日:2002-05-07
[EN] METHODS FOR PRODUCING alpha -ACYLOXY CARBONYL COMPOUNDS FROM ENOL ESTER EPOXIDES<br/>[FR] PROCEDES DE PRODUCTION DE COMPOSES DOLLAR G(a)-ACYLOXY CARBONYLE A PARTIR D'EPOXYDES D'ESTER ENOLIQUE
申请人:UNIV COLORADO STATE RES FOUND
公开号:WO2000056696A1
公开(公告)日:2000-09-28
The present invention provides a method for producing an α-acyloxy carbonyl compound from an enol ester epoxide stereoselectively using an acid catalyst which is capable of affecting rearrangement of the enol ester epoxide with inversion of stereochemistry. The present invention also provides a method for kinetic resolution of a stereoisomeric mixture of enol ester epoxides using a chiral catalyst. The kinetic resolution generally involves stereoselectively producing one particular enantiomer of α-acyloxy carbonyl compounds from the stereoisomeric mixture of enol ester epoxides.