title: Radical-induced formation of some siloles and diazasiloles.
abstract: The Bu(3)Sn radical-induced reaction of o-iodobenzylvinylsilanes and o-iodoallylsilanes leads to cyclic products in yields of 40-60%. These regioselective cyclizations occur with high preference for a 5-exo and a 7-endo mode with a 6-exo mode being absent. An example for ring closure via a 7-exo mode is described.
authors.affiliation: Department of Chemistry & Biochemistry, University of Bern, Switzerland.
authors.forename: Bangwei
authors.initials: B
authors.lastname: Ding
authors.forename: Zhu
authors.initials: Z
authors.lastname: Teng
authors.forename: Reinhart
authors.initials: R
authors.lastname: Keese