作者:Herbert C. Brown、Alan B. Levy
DOI:10.1016/s0022-328x(00)82909-5
日期:1972.11
Trialkylboranes derived from terminal, cyclic and bicyclic olefins via hydroboration with 5 mole percent excess borane undergo ready redistribution with boron trichloride at 110° to give the corresponding alkyldichloroboranes, providing a convenient synthesis of such derivatives. On the other hand, trialkylboranes derived from internal olefins, such as 3-hexene, undergo this reaction more sluggishly
通过与5摩尔%过量的
硼烷进行氢
硼化而衍生自末端,环状和双环烯烃的三烷基
硼烷易于与
三氯化硼在110°下重新分布,得到相应的烷基二
氯硼烷,为此类衍
生物的合成提供了方便。另一方面,衍生自内烯烃例如
3-己烯的三烷基
硼烷更缓慢地进行该反应并产生其中
硼原子已部分地从其原始位置迁移的产物。