Gold‐Catalyzed Reactions of Enynals/Enynones with Norbornenes: Generation and Trapping of Cyclic <i>o</i>‐Quinodimethanes (<i>o</i>‐QDMs)

Fan-like structures: An efficient AuIII-catalyzed method to generate the highly reactive cyclic o-quinodimethane (o-QDM) species from easily available enynals or enynones is presented (see scheme). This method produced a variety of structurally unique fan-like products with the advantages of mild reaction conditions, excellent diastereoselectivities, and high functional-group tolerance. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. 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.