Tetrahedron letters

Selective synthesis of allenic and acetylenic derivatives via pentaorganylstiboranes

LJ Zhang, YZ Huang, ZH Huang

文献索引：Zhang, Li-Jun; Huang, Yao-Zeng; Huang, Zhe-Hui Tetrahedron Letters, 1991 , vol. 32, # 45 p. 6579 - 6582

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被引用次数: 19

摘要

Abstract Allenyltetrabutylstiborane (3), bormed from allenyltributylstibonium bromide (2) and butylmagnesium bromide, reacted with aldehydes to give homopropargylic alcohols (4) exclusively in excellent yields, while 2-butynyltetrabutylstiborane (6), formed from 2- butynyltributylstibonium bromide (5) and butylmagnesium bromide, reacted with aldehydes to give allenic alcohols (7) preferentially.