Mild Photochemical Generation of Stannyl Radicals Bu3Sn???? from Hexabutyl Distannane for Organic Synthesis
- 1 January 1993
- journal article
- letter
- Published by Georg Thieme Verlag KG in Synlett
- Vol. 1993 (04) , 286-288
- https://doi.org/10.1055/s-1993-22434
Abstract
Stannyl radicals Bu3Sn???? are generated smoothly and selectively from the distannane Bu3Sn-SnBu3, when optimized triplet sensitizers and mild UV irradiation are used. This allows fine tuning of slow consecutive radical steps. For example, carbon-centred radicals produced by this way can favour slow intramolecular (cyclizations) or intermolecular additions to double bonds, or dimerization, when no or carefully adjusted H-donors are used. Typical examples are given.Keywords
This publication has 0 references indexed in Scilit: