Platinum-catalyzed intermolecular hydroamination of unactivated olefins with carboxamides

Reaction of benzamide with a catalytic 1:2 mixture of [PtCl2(H2C=CH2)](2) (2.5 mol %) and PPh3 in dioxane at 120 degreesC 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.