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A variety of terminal arylacetylenes have been conveniently synthesized in good to high yields via Sonogashira coupling of aryl iodides with (trimethylsilyl)acetylene catalyzed by MCM-41-supported mercapto palladium(0)complex,followed by desilylation under mild conditions.This polymeric palladium catalyst can be reused many times without any decrease in activity.
A variety of terminal arylacetylenes have been synthesized in good to high yields via Sonogashira coupling of aryl iodides with (trimethylsilyl) acetylene catalyzed by MCM-41-supported mercapto palladium (0) complex, followed by desilylation under mild conditions. This polymeric palladium catalyst can be reused many times without any decrease in activity.