Stereoselective Synthesis of α‐Allenols by Rhodium‐Catalyzed Reaction of Alkynyl Oxiranes with Arylboronic Acids

Abstract

Better than Cu, Pd, and Fe catalysts: The rhodium-catalyzed reaction of alkynyl oxiranes with arylboronic acids provides syn-configured α-allenols with excellent diastereoselectivity. Precoordination of the oxygen atom of the oxirane ring to rhodium is assumed to contribute to the high stereoselectivity as well as high reactivity. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2007/z701505_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.