Cycloisomerization Promoted by the Combination of a Ruthenium–Carbene Catalyst and Trimethylsilyl Vinyl Ether, and its Application in The Synthesis of Heterocyclic Compounds: 3‐Methylene‐2,3‐dihydroindoles and 3‐Methylene‐2,3‐dihydrobenzofurans

Abstract

Substituted N and O heterocycles have been synthesized by the cycloisomerization of dienes using a ruthenium-carbene catalyst. The products obtained with and without trimethylsilyl vinyl ether differ (see scheme, Cy=cyclohexyl, Mes=2,4,6-trimethylphenyl, Ts=p-toluenesulfonyl). Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2004/z54157_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.