Palladium-catalyzed carbamoylation and alkoxycarbonylation of vinyl-and arylorganotins : an easy entry into vinyl or aryl amides and esters

The palladium-catalyzed cross-coupling reaction between substituted aryl- and vinylorganotins or heterocyclic organotin compounds and chloroformates or carbamoyl chlorides is reported. It proceeds smoothly to provide esters or amides in good yields. The reaction conditions are mild, and a wide range of functionalities on the tin reagent can be tolerated