Selective Ring-opening Reactions of β-(Selenosilylmethyl)- cyclopropyl Ketones and Esters

Tin hydride-induced radical reactions of β-(selenosilylmethyl)cyclopropyl esters and ketones have been examined. Regioselective cyclopropane ring-opening and subsequent hydrogen abstraction from tin hydride occurred and tandem C-C bond formation reactions were notobserved.