ASYMMETRIC-SYNTHESIS .32. A NEW ACCESS TO ENANTIOMERICALLY PURE (S)-(-)-PIPECOLIC ACID AND 2-ALKYLATED OR 6-ALKYLATED DERIVATIVES

被引:68
作者
BERRIEN, JF [1 ]
ROYER, J [1 ]
HUSSON, HP [1 ]
机构
[1] CNRS,INST CHIM SUBST NAT,F-91198 GIF SUR YVETTE,FRANCE
关键词
D O I
10.1021/jo00093a007
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Enantiomerically pure (S)-(-)-pipecolic acid (5) was synthesized in four steps and 47% overall yield starting from 2-cyano-6-phenyloxazolopiperidine (1). A general strategy is described for preparing 2-alkylated and 6-alkylated pipecolic acid 7a-c and 11a-c using diastereoselective procedures.
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页码:3769 / 3774
页数:6
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