interested in the straightforward method for the synthesis of 1,1-difluoro- 1,3-butadienes from the cross-couplingreaction of 2,2-diflu-oroalkenylmetal reagent with alkenylhalides, which should be a simple and efficient method. Palladium-catalyzed cross- coupling reactions of 1,1-difluorohomoallenyl bromide with aryl bromides and iodides and arylboronicacids provided the corresponding 1,1-difluoro-1,3-butadienes