A process for preparing boratabenzene derivatives is provided. The process includes the hydrogenation of a compound containing a boranaphthalene functional group to form a boratabenzene-containing compound. Depending on the compound containing a boranaphthalene functional group, the resulting boratabenzene compound may be converted into a catalyst suitable for olefin polymerization. A process for forming a boratabenzene derivative from a halo-dioxaborolane is also provided. In this process, a halo-dioxaborolane is reacted with a piperylide salt for form a pentadienyl dioxaborolane. The pentadienyl-dioxaborolane is reacted with a strong base to form an intermediate boratacyclohexanediene salt. The intermediate boratacyclohexanediene salt is then reacted with a trialkylaluminum compound to form an alkylboratabenzene salt.
提供了一种制备
硼苯衍
生物的过程。该过程包括将含有
硼萘基团的化合物加氢,以形成含有
硼苯基团的化合物。根据含有
硼萘基团的化合物,所得到的
硼苯化合物可以转化为适用于烯烃聚合的催化剂。还提供了一种从卤代二氧
硼烷形成
硼苯衍
生物的过程。在该过程中,卤代二氧
硼烷与
吡啶盐反应,形成
戊二烯基二氧
硼烷。然后,
戊二烯基二氧
硼烷与强碱反应,形成中间体
硼杂环
己二烯盐。最后,中间体
硼杂环
己二烯盐与三烷基铝化合物反应,形成烷基
硼苯盐。