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Distannylations and Silastannylations of In Situ Generated Allenes


  • This work was supported by the Deutsche Forschungsgemeinschaft (Ka880/6 and Ka880/8) and the Fonds der Chemischen Industrie.


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Propargylic ethers and acetates can be converted into distannylated alkenes in the presence of Bu3SnH and a Pd catalyst. The reaction proceeds via a stannylated allyl alcohol derivative, which undergoes elimination and subsequent dimetalation. If a molybdenum catalyst is used in the hydrostannylation step, and the stannylated intermediates can be reacted with other dimetallic compounds.