The palladium-catalyzed “head-to-tail” cross-coupling reaction of 1-alkenylboranes with phenyl or 1-alkenyl iodides. A novel synthesis of 2-phenyl-1-alkenes or 2-alkyl-1,3-alkadienes via organoboranes
作者:Norio Miyaura、Akira Suzuki
DOI:10.1016/s0022-328x(00)82970-8
日期:1981.6
The reaction of phenyl or 1-alkenyl iodides with 1-alkenyl-1,3,2-benzodioxaboroles readily obtainable via the hydroboration of 1-alkynes, gives the corresponding “head-to-tail” cross-coupling products, 2-phenyl-1-alkenes or 2-alkyl-1,3-alkadienes, in good yields. The reaction is effectively catalyzed by catalytic amounts of palladium compounds in the presence of triethylamine.
苯基或1-烯基碘化物与1-烯基-1,3,2-苯并二氧杂硼酸的反应可通过1-炔烃的硼氢化反应轻松获得,得到相应的“头对尾”交叉偶联产物2-苯基- 1-烯烃或2-烷基-1,3-链二烯,收率高。在三乙胺的存在下,通过催化量的钯化合物可有效地催化反应。