Selective synthesis of alkynes by catalytic dehydrogenation of alkenes over polymer-supported palladium acetate in the liquid phase

Abstract
A heterogenized palladium acetate catalyst, in the presence of oxygen and perchloric acid in theanol–water caused the direct conversion of terminal and internal monoalkenes into the corresponding alkynes, under mild conditions and in high yields; Wacker-type ketonization occurs with the same reagents in dioxane–water.

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