Add time:07/16/2019         Source:sciencedirect.com

The palladium-catalyzed direct alkynylation of 2,2-difluoro-1-tributylstannylethenyl p-toluenesulfonate 1 with alkynyl bromides provided the corresponding 1,1-difluoro-1,3-enynyl tosylates 2 in good yields. The Suzuki-Miyaura arylation reaction of 2 with arylboronic acids afforded the cross-coupled products, 2-aryl-1,1-difluoro-1,3-enynes 3, in good yields.

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