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Synlett 1993; 1993(4): 283-285
DOI: 10.1055/s-1993-22433
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A Polymer-Supported Distannane as Photochemical, Regenerable Source of Stannyl Radicals for Organic Synthesis

Monika Harendza* , Karsten Leßmann, Wilhelm P. Neumann
  • *Department of Chemistry, University of Dortmund, Otto-Hahn-Strasse 6, D-4600 Dortmund 50, Germany
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Publication Date:
19 March 2002 (online)

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A polystyrene-supported distannane has been developed where both tin atoms are bound to the polymer. It provides, with longlived triplet sensitizers, a smooth photochemical source of stannyl radicals that allows slow radical reactions like cyclizations or other additions, and can be applied without or with selectively adjusted H-donors. The work up is done simply by filtering off the polymer which can be regenerated for multiple use.