An efficient and practical synthetic method has been developed for the preparation of symmetrical diarylacetylenes from the direct reaction of aryl chlorides with 2-methyl-3-butyn-2-ol catalyzed by palladium(II) chloride-bis(tricyclohexylphosphine) [PdCl2(PCy3)2] under mild reaction conditions. Unsymmetrical diarylated acetylenes could be also obtained by using two different aryl chlorides simultaneously