A novel method for catalytic remote bismetalation of alkene substrates by the addition of dimetal reagents is accomplished by using chain walking. In the presence of a palladium catalyst, the reaction of various 1,n-dienes and diborons were converted into cyclopentane derivatives with two boryl groups at remote positions via facile regioselective transformation of an unactivated sp3 C–H bond to a C–B
一种通过添加二
金属试剂催化烯烃底物远程双
金属化的新方法是通过使用链行走实现的。在
钯催化剂的存在下,通过将未活化的 sp 3 C-H 键区域选择性转化为 C-B 键,各种 1, n-二烯和二
硼的反应被转化为在远端位置具有两个
硼基的
环戊烷衍
生物. 1, n-二烯(n≥7 )的反应实现了任何方法都难以实现的三个远距离键的顺序构建。