We have developed a photoinduced copper‐catalyzed alkylation of terminal alkynes with primary, secondary, or tertiary alkyl iodides as electrophiles. The reaction has a broad substrate scope and can be successfully performed in the presence of ester, nitrile, aryl halide, ketone, sulfonamide, epoxide, alcohol, and amide functional groups. The alkylation is promoted by blue light (λ≈450 nm) and proceeds at room temperature in the absence of any additional metal catalysts. The use of a terpyridine ligand is essential for the success of the reaction and is shown to prevent photoinduced copper‐catalyzed polymerization of the starting materials.

中文翻译：

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末端炔烃和烷基碘化物的光诱导铜催化偶联

我们已经开发出了以伯，仲或叔烷基碘为亲电试剂的末端炔烃的光诱导铜催化烷基化反应。该反应具有广泛的底物范围，并且可以在酯，腈，卤代芳基，酮，磺酰胺，环氧化物，醇和酰胺官能团的存在下成功进行。该烷基化是由蓝色光促进（λ ≈450nm）与在没有任何附加的金属催化剂的室温下进行。联吡啶配体的使用对于反应的成功至关重要，而且可以防止光诱导的铜催化原料的聚合。