Palladium-catalyzed coupling of terminal alkynes using heteroaryl tosylate and heteroaryl benzene sulfonate

摘要

A process for the palladium-catalyzed coupling of terminal alkynes with heteroaryl tosylates and heteroaryl benzenesulfonates The present invention relates to a process for the regioselective synthesis of compounds of the formula (I), wherein D, J and W have the meanings indicated in the claims. The present invention provides an efficient and general palladium-catalyzed coupling process of heteroaryl tosylates with terminal alkynes to a wide variety of substituted, multifunctional heteroaryl-1-alkynes of the formula I.