Copper‐Catalyzed C–P Coupling through Decarboxylation

An acid for a phosphine: A versatile protocol for preparation of various di(phenyl)phosphoryl oxides was developed by copper-catalyzed decarboxylative coupling of alkenyl, alkynyl carboxylic acids, and N-benzylproline, respectively, with R2P(O)H (see scheme). All classes of products are important precursors for preparation of biologically active molecules and various phosphorus ligands. This finding represents the first example of copper-catalyzed decarboxylative coupling to construct CP bonds. 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.