Tetrahedron

A new preparation of methylenecyclopropanes utilizing trimethylsilyldiazomethane

A Sakai, T Aoyama, T Shioiri

文献索引：Sakai, Atsushi; Aoyama, Toyohiko; Shioiri, Takayuki Tetrahedron, 1999 , vol. 55, # 12 p. 3687 - 3694

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被引用次数: 16

摘要

Reactions of aliphatic ketones with lithium trimethylsilyl-diazomethane in the presence of excess olefins afforded methylenecyclopropanes in moderate to good yields. The multiplicity of the alkylidene carbene intermediate in the reacting state has been revealed to be a singlet.