Tantalum-alkyne complexes as synthetic intermediates. Stereoselective preparation of trisubstituted allylic alcohols from acetylenes and aldehydes

Kazuhiko Takai, Yasutaka Kataoka, Kiitiro Utimoto

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Abstract

A variety of tantalum-alkyne complexes have been generated (but not isolated) by treatment of alkynes with low-valent tantalum derived from TaCl5 and zinc. These complexes add to carbonyl compounds in a one-to-one fashion to yield (E)-allylic alcohols, regio- and stereoselectively.

Original languageEnglish
Pages (from-to)1707-1708
Number of pages2
JournalJournal of Organic Chemistry
Volume55
Issue number6
Publication statusPublished - 1990
Externally publishedYes

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ASJC Scopus subject areas

  • Organic Chemistry

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