The iodolactone approach to enantiopure oxiranes of constrained chiral cyclic β-amino acids
摘要:
A simple and efficient method has been developed for the synthesis of enantiopure epoxide derivatives of some constrained chiral cyclic beta-amino acids via iodolactonization and alkaline de-iodation. Lower stereo-selectivities were observed when the classical method using mCPBA was used when a bicyclic beta-amino acid was involved leading to a quasi-inseparable mixture of two epoxides. (C) 2008 Elsevier Ltd. All rights reserved.