Palladium-Catalyzed Allylalkynylation of Benzynes: A Highly Efficient Route to Substituted 1-Allyl-2-alkynylbenzenes
摘要:
Benzynes, generated in situ from 2-(trimethylsilyl)aryl triflates and cesium fluoride, undergo allylalkynylation with allylic chlorides and alkynylstannanes in the presence of palladium catalyst to give 1-allyl-2-alkynylbenzenes in good to excellent yields.