Platinum-Catalyzed Intermolecular Hydroamination of Unactivated Olefins with Carboxamides

Reaction of benzamide with a catalytic 1:2 mixture of [PtCl 2 (H 2 C CH 2 )] 2 (2.5 mol %) and PPh 3 in dioxane at 120 °C for 24 h led to isolation of N -ethylbenzamide in 97% yield. A range of primary, acyclic aryl and alkyl carboxamides and secondary cyclic carboxamides and carbamates also underwent platinum-catalyzed addition to ethylene and propylene.