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Radical-induced formation of some siloles and diazasiloles
Bangwei Ding1, Zhu Teng, Reinhart Keese
1Department of Chemistry & Biochemistry, University of Bern, Switzerland.
The Journal of Organic Chemistry
|December 7, 2002
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.