A copper-catalyzed decarboxylative alkylation of terminal alkynes under mild reaction conditions has been reported. Various alkyl diacyl peroxides were applied as the alkyl source for the formation of C(sp³)−C(sp) bond. A range of terminal alkynes including aryl alkynes and alkyl alkynes delivered the alkylated internal alkynes with good to high performances. Mechanism studies suggested that this reaction involves a free radical pathway.

中文翻译：

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铜催化末端炔烃的脱羧烷基化

已经报道了在温和的反应条件下，末端炔烃的铜催化的脱羧烷基化。各种烷基二酰基过氧化物被用作形成C（sp ³）-C（sp）键的烷基源。包括芳基炔烃和烷基炔烃在内的一系列末端炔烃以良好的性能提供了烷基化的内部炔烃。机理研究表明，该反应涉及自由基途径。