The reaction of alkynes with vinyl arenes or vinyl trimethyl silane in the presence of a cobalt(II) complex, Zn and ZnI(2) in CH(2)Cl(2) at rt to 50 degrees C provides 1,3-dienes in good to excellent yields.
炔烃与
乙烯基芳烃或
乙烯基三甲基
硅烷在
钴(II)络合物,Zn和ZnI(2)在CH(2)Cl(2)中在rt至50℃存在下反应,可得到1,3-二烯好到极好的产量。