Enantioselective One-Pot Synthesis of α,β-Epoxy Ketones via Aerobic Oxidation of Cyclopropanols
作者:Gábor Zoltán Elek、Victor Borovkov、Margus Lopp、Dzmitry G. Kananovich
DOI:10.1021/acs.orglett.7b01519
日期:2017.7.7
available tertiary cyclopropanols. The one-pot protocol includes the aerobic oxidation of cyclopropanol derivatives catalyzed by Mn(III) complexes followed by the poly-l-leucine-assisted stereoselective elimination of water from the intermediate peroxides with DBU to afford the corresponding epoxy ketones in high yields and good-to-excellent enantioselectivities (up to 97%).
An Efficient Route to α,β-Epoxy Ketones of High Enantiomerical Purity
作者:L. Pégorier、Y. Petit、A. Mambu、M. Larchevêque
DOI:10.1055/s-1994-25700
日期:——
Acylepoxides were obtained in high enantiomeric purity (ee = 92-99%) by addition of organolithium or Grignard reagents to enantiomerically pure methyl or ethyl 2,3-epoxypropanoates at low temperature ( - 85°C)
A general stereocontrolled synthesis of hydroxyethylene dipeptide isosteres
作者:Laurent Pégorier、Marc Larchevêque
DOI:10.1016/0040-4039(95)00357-i
日期:1995.4
Hydroxyethylene dipeptideisosteres were synthesized by stereocontrolled hydroboration of homoallylic alcohols derived from syn protected aminoepoxides followed by chemoselective oxidation of the resulting primary alcohols.