The asymmetric Michael addition reaction between a variety of chiral imines and 2-acetoxyacrylonitrile, an electrophile equivalent to acetaldehyde, was reported. The resulting adducts were obtained in fair yields and with de and ee ≥95%.
Enantioselective synthesis of the ester side chain of homoharringtonine
作者:Laurent Keller、Françoise Dumas、Jean d'Angelo
DOI:10.1016/s0040-4039(01)00086-7
日期:2001.3
The Michael adduct 6 was converted in ten steps with an overall yield of 5.7% into the methyl ester derivative of the sidechain of homoharringtonine, (R)-17.