5,6-Dihydro-4H-pyridine-1,2-dicarboxylic acid 2-methyl ester 1-phenyl ester 在
RuCl
2[(R)-BINAP]
氢气 作用下,
以
甲醇 为溶剂,
生成 (R)-Piperidine-1,2-dicarboxylic acid 2-methyl ester 1-phenyl ester 、 (S)-Piperidine-1,2-dicarboxylic acid 2-methyl ester 1-phenyl ester