名称:
A Convenient Method for Synthesis of Optically Active Methylphenidate from N-Methoxycarbonylpiperidine by Utilizing Electrochemical Oxidation and Evans Aldol-type Reaction
摘要:
A new method to prepare optically active methylphenidate starting from piperidine is described. The method consists of a transformation of N-methoxycarbonylated piperidine to the corresponding alpha-methoxylated carbamate utilizing electrochemical oxidation followed by the coupling reaction with optically active Evans imides to produce optically active methylphenidate derivatives with high stereoselectivity (erythrolthreo=5.3/94.7, the three isomer; 99.6%ee). (C) 2000 Elsevier Science Ltd. All rights reserved.
DOI:
10.1016/s0040-4020(00)00653-0