Homochiral acetals in organic synthesis. A general enantioselective entry to carbohydrate derivatives from non-carbohydrate precursors
作者:Eugene A. Mash、Jeffrey B. Arterburn、James A. Fryling
DOI:10.1016/s0040-4039(01)93919-x
日期:1989.1
A general chromatographic separation of furanosides and pyranosides derived from esters of lactic acid is disclosed. Application of this separation methodology to rapid syntheses of the diastereomers of (S)-methyl lactyl 4-deoxyribopyranose is described.
Abstract New and efficient chemoenzymatic approaches for the synthesis of both enantiomers of 2-hydroxy-3-octanone in good yields and excellent enantioselectivity are presented. The S-enantiomer is a pheromone component of economically important pests in Japan, India, China, and other Asian countries. The enzymatic approaches involve transesterification of the racemic acyloin with vinyl acetate in
Enantiomerically pure acetals in organic synthesis. 1. Chromatographic separability of furanoside and pyranoside acetals derived from .alpha.-hydroxy esters
作者:Eugene A. Mash、Jeffrey B. Arterburn、James A. Fryling、Susan H. Mitchell
DOI:10.1021/jo00003a034
日期:1991.2
A general chromatographic separation of diastereomeric furanoside and pyranoside acetals derived from alpha-hydroxy esters is described. Application of this separation methodology is made to rapid syntheses of the diastereomers of (S)-methyl lactyl 4-deoxy-beta-erythro-pentopyranoside.
Synthesis of Precursors to L-Ristosamine and L-Daunosamine from L-Lactic Acid.
作者:Svante Brandänge、Bo Lindqvist、Douglas F. Barofsky、G. Doyle Daves, Jr.、Stefan C. T. Svensson、Bo Wigilius