Copper porphyrin as efficient catalysts for esterification of allyl sp3 C-H bond with carboxylic acid

We described that copper 5,10,15,20-tetrakis (ethoxycarbonyl)porphyrin (TECP) catalyzed oxidative cross dehydrogenative coupling of allyl sp(3) C-H bond with acid for the synthesis of allyl esters in a homogeneous system. This reaction proceeded with broad substrate scope and good functional group tolerance. In the gram-level test, the turnover number (TON) reached to 8100 at 0.01 mol% catalyst loading, with 81% yield.