1,3-DIPOLAR CYCLOADDITIONS OF 3-METHYLENECEPHAMS WITH DIAZOALKANES

被引：8

作者：

BALDWIN, JE ^{[1
]}

PITLIK, J ^{[1
]}

机构：

[1] OXFORD CTR MOLEC SCI,OXFORD OX1 3QY,ENGLAND

来源：

TETRAHEDRON LETTERS | 1990年 / 31卷 / 17期

关键词：

D O I：

10.1016/S0040-4039(00)97395-7

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The 3-methylenecephams underwent 1,3-dipolar cycloaddition reactions with diazomethane to give spiropyrazolinocephams in a completely stereo- and regioselective manner. Thermal breakdown of these 1-pyrazolines led to spirocyclopropane and vinyl derivatives. © 1990.

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页码：2483 / 2486

页数：4

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