Process for the coupling catalysed by palu00c1dio of alcinas terminals with tosilatos of arila

摘要

The present invention relates to a process for the regioselective synthesis of compounds of the formula (I), wherein R1; R2; R3; R4; R5; J and W have the meanings indicated in the claims. The present invention provides an efficient and general palladium-catalyzed coupling process for aryl tosylates with terminal alkynes to a wide variety of substituted, multifunctional aryl-1-alkynes of the formula I.