1-Phenylthio-1,3-alkadienes and 1,3,5-alkatrienes are obtained in excellent yields stereo- and regioselectively by the cross-coupling between 1-alkenyl or 1,3-alkadienyl-1,3,2-benzodioxaboroles and (E)- or (Z)-2-bromo-1-phenylthio-1-alkenes in the presence of a catalytic amount of Pd(PPh3)4. These sulfides are converted to the corresponding conjugated alkatrienes and tetraenes by the reaction with Grignard
通过 1-链烯基或 1,3-链二烯基-1,3,2-苯并二氧杂
环戊烷和(E)- 或 (Z)-2-bromo-1-phenylthio-1- 烯烃在催化量的 Pd(PPh3)4 存在下。这些
硫化物在
镍催化剂存在下通过与
格氏试剂反应转化为相应的共轭烷
三烯和四烯。