Gold‐Catalyzed Oxidative Ring Expansions and Ring Cleavages of Alkynylcyclopropanes by Intermolecular Reactions Oxidized by Diphenylsulfoxide

Abstract

Ph2SO als Sauerstoffspender: Eine neue goldkatalysierte oxidative Ringerweiterung für nichtaktivierte Cyclopropylalkine mit Ph2SO wurde entwickelt (siehe Schema). Substrate mit einer Donorgruppe am Cyclopropanring gehen eine Ringöffnung ein, die zur Synthese von 2H-Pyranen genutzt werden kann. L=P(tBu)2(o-Biphenyl), Tf=Triflat. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by 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.