(E)-1,2-Bis(boryl)-1-hexene, prepared by the platinum-catalyzed diboration of 1-hexyne with bis(pinacolato)diboron, regioselectively cross-coupled with aryl, 1-alkenyl, benzyl, and allyl halides in the presence of a palladium catalyst and a base to provide the corresponding pinacol esters of (E)-(1-butyl-1-alkenyl)boronic acid in good yields.
(E)-1,2-双(
硼基)-
1-己烯,通过
铂催化
1-己炔与双(
频哪醇)二
硼的二
硼化反应制备,与芳基、1-烯基、苄基和烯丙基区域选择性交叉偶联卤化物在
钯催化剂和碱的存在下以良好的产率提供相应的(E)-(1-丁基-1-链烯基)
硼酸频哪醇酯。