Radical cyclization of epoxyketones via a 1,5-Bun3Sn group or a 1,5-H atom transfer
Abstract
Radical cyclization of epoxyketones is initiated by Bun3Sn radical addition to epoxyketones, followed by epoxide fragmentation, 1,5-H- or 1,5-Bun3Sn transfer, and cyclization.