amine-monochloroboranes to yield trialkylboranes and dialkylchloroboranes respectively. Substantial migration of the boron atom from its original point of attachment often occurs subsequent to the addition at such temperatures. An amine-monochloroborane reacts less rapidly than the corresponding amine-borane and boron migration in the resulting organochloroborane occurs at a substantially slower rate. These conclusions
在适当升高的温度下(通常在80°至180°之间),
2-甲基-2-戊烯被胺-
硼烷和胺-一
氯硼烷定量氢
硼化,分别得到三烷基
硼烷和二烷基
氯硼烷。
硼原子从其原始连接点开始大量迁移通常是在这种温度下添加之后发生的。胺-一
氯硼烷的反应不如相应的胺-
硼烷快,并且
硼在所得有机
氯硼烷中的迁移以明显慢的速率发生。这些结论是从通过有机
硼烷的碱性
过氧化氢氧化得到的醇的比例得出的。