title: Remarkable effect of a silicon group on the stereoselectivity of radical 5-exo-trig cyclizations.
abstract: [reaction: see text] Sulfonyl radical mediated 5-exo-trig cyclization of chiral 3-silylhepta-1,6-dienes has been shown to provide cyclopentanes having up to four stereogenic centers with an unexpectedly high level of stereocontrol.
authors.affiliation: Université Bordeaux-I, Laboratoire de Chimie Organique et Organométallique, 351, Cours de la Libération, 33405 Talence Cedex, France.
authors.forename: Philippe
authors.initials: P
authors.lastname: James
authors.forename: Yannick
authors.initials: Y
authors.lastname: Landais