posted on 2023-11-03, 18:05authored byXujuan Jiang, Yanshan Song, Junjie Peng, Zhiying Zhong, Li Chen, Xiaojun Zeng
We report herein a highly efficient copper-catalyzed
protocol for
the transformation of haloalkynes to the corresponding difluoromethylated
alkynes. This scalable protocol exhibits a broad substrate scope and
excellent functional group tolerance, enabling the late-stage difluoromethylation
of bioactive molecules. Additionally, the strategy of utilizing the
difluoromethylalkynes in gram-scale reactions and multiple transformations
has proven to be highly valuable in synthetic chemistry.