Treatment of alkynylsilanes with triarylantimony diacetates in the presence of Pd2(dba)3·CHCl3 (5 mol%) and CuI (10 mol%) in CH3CN at 50 °C for 5 h afforded aryl-substituted alkynes in good yield. Alternatively, direct carbonylative coupling of triarylantimony diacetates with alkynylsilanes was accomplished under atmospheric pressure of carbon monoxide.
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Kang et al. (2001) studied this question.
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