Pd (0)–Cu (I)-catalyzed cross-coupling of alkynylsilanes with triarylantimony (V) diacetates

SK Kang, HC Ryu, YT Hong

Index: Kang, Suk-Ku; Ryu, Hyung-Chul; Hong, Young-Taek Journal of the Chemical Society. Perkin Transactions 1, 2001 , # 7 p. 736 - 739

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Abstract

Treatment of alkynylsilanes with triarylantimony diacetates in the presence of Pd 2 (dba) 3· CHCl 3 (5 mol%) and CuI (10 mol%) in CH 3 CN 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.

~66%

~63%

~70%

~85%

~82%

~63%

~80%

~79%

~73%

~79%

~82%

~71%

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