Palladium-catalyzed aerobic oxidative cross-coupling reactions of terminal alkynes with alkylzinc reagents. 2010

Mao Chen, and Xiaolong Zheng, and Wenqing Li, and Jun He, and Aiwen Lei
College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China.

With air as the oxidant, terminal alkynes can be directly cross-coupled with alkylzinc reagents in the presence of a Pd catalyst at room temperature. CO was found to be critical in gaining high chemical yields and selectivities. A wide range of alkynes and alkylzinc reagents were tested, and good to excellent yields were obtained.

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