Copper‐Catalyzed Oxidative CO Coupling by Direct CH Bond Activation of Formamides: Synthesis of Enol Carbamates and 2‐Carbonyl‐Substituted Phenol Carbamates

Formamide CH bond activation has been achieved under oxidative conditions, using a copper catalyst and tert-butyl hydroperoxide (TBHP) as the external oxidant (see scheme). This oxidative coupling of a range of dialkyl formamides provides an easy, phosgene-free route for the selective synthesis of Z-enol carbamates and 2-carbonyl-substituted phenol carbamates in high yields. 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.