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Synthesis 2009(19): 3214-3218
DOI: 10.1055/s-0029-1216958
DOI: 10.1055/s-0029-1216958
PAPER
© Georg Thieme Verlag
Stuttgart ˙ New York
Synthesis and Stille Cross-Coupling Reactions of 2-(Tributylstannyl)- and 2,5-Bis(trimethylstannyl)tellurophene
Further Information
Received
30 March 2009
Publication Date:
21 August 2009 (online)
Publication History
Publication Date:
21 August 2009 (online)
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Abstract
Herein, we describe the synthesis and Stille cross-coupling reactions of 2-(tributylstannyl)- and 2,5-bis(trimethylstannyl)tellurophene. The reactions were most optimal when using aryl iodides as coupling partners, and a mixed catalyst system consisting of tetrakis(triphenylphosphine)palladium(0) and copper(I) iodide, together with cesium fluoride as additive, in N,N-dimethylformamide. This is the first reported synthesis and use of stannylated tellurophenes for cross-coupling reactions.
Key words
tellurophene - Stille reaction - cross-coupling - palladium - heterocyclic
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