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. 2002 Nov 29;67(24):8450-6.
doi: 10.1021/jo025973r.

Copper(I) tert-butoxide-promoted 1,4 C sp 2-to-O silyl migration: generation of vinyl copper equivalents and their stereospecific cross-coupling with allylic, aryl, and vinylic halides

Haruhiko Taguchi  1 , Kazushi Ghoroku, Makoto Tadaki, Akira Tsubouchi, Takeshi Takeda
Affiliations

Copper(I) tert-butoxide-promoted 1,4 C sp 2-to-O silyl migration: generation of vinyl copper equivalents and their stereospecific cross-coupling with allylic, aryl, and vinylic halides

Haruhiko Taguchi et al. J Org Chem. .

Abstract

Successive treatment of the (Z)-gamma-trimethylsilyl allylic alcohols with copper(I) tert-butoxide and allylic halides followed by the tetrabutylammonium fluoride-assisted hydrolysis produced the allylation products, 2,5-alkadien-1-ols, with complete retention of configuration. Similar treatment of the organometallic intermediates with aryl and vinylic halides in the presence of palladium(0) catalyst gave the corresponding cross-coupling products in good yields. The stereoselective preparation of the starting materials is also described.

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