Itaru Nakamura, Naofumi Tsukada, Mohammad Al-Masum and Yoshinori Yamamoto
In the presence of catalytic amounts of Pd2(dba)3·CHCl3 and dppb, the reaction of pronucleophiles 1 with vinyltins 2 gives the corresponding alkylative dimerization products of the vinyl group, 1,4-disubstituted butene derivatives 3, in good to high yields.