Synthesis of 3-alkenyl-Delta(2)-cephems by copper(I) chloride-promoted alkenylation of 3-trifluoromethylsulfonyloxy-Delta 3-cephem with alkenyltributyltins

被引:15
作者
Tanaka, H [1 ]
Sumida, S [1 ]
Torii, S [1 ]
机构
[1] OKAYAMA UNIV,FAC ENGN,DEPT APPL CHEM,OKAYAMA 700,JAPAN
关键词
D O I
10.1016/0040-4039(96)01289-0
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Synthesis of 3-alkenyl-Delta(2)-cephems 3 was performed in regioselective manner by copper(I) chloride-promoted alkenylation of 3-trifluoromethylsulfonyloxy-Delta(3)-cephem 1 with alkenyltributyltins. Subsequent Diels-Alder reaction of the 3-vinyl-Delta(2)-cephem 3a with acrolein opened a new access to C(2)-C(3) fused tricyclic cephalosporin 9. Copyright (C) 1996 Elsevier Science Ltd
引用
收藏
页码:5967 / 5970
页数:4
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