Gold‐Catalyzed Intramolecular Redox Reaction of Sulfinyl Alkynes: Efficient Generation of α‐Oxo Gold Carbenoids and Application in Insertion into RCO Bonds

Abstract

Golden touch: α-Oxo Au carbenoids are efficiently generated by Au-catalyzed intramolecular redox reactions of sulfinyl alkynes. Besides cyclization to form benzo-fused sulfur-containing rings, these intermediates can participate in subsequent pinacol-type rearrangements, leading to a two-step insertion of a latent vinylcarbonylmethylene group into aldehydes or ketones (see scheme for second step). Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2007/z701449_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.