Boron-containing heterocyclic compounds of the chemical formula: ##STR1## wherein at least one of R.sub.1, R.sub.2, R.sub.3, or R.sub.4 is an aryl, alkylaryl, or arylalkyl radical having from 1 to about 30 carbon atoms have been found useful as extreme pressure, anti-wear and friction-reducing additives for lubricating oils. The boron-containing heterocyclic compounds of the present invention are the reaction product of boric acid with the intermediate reaction product of a primary amine and an aromatic oxide. Metal derivatives of the boron-containing heterocyclic compounds are obtained by chemical reaction with a metal or compound thereof, particularly a first row transition metal or a Group IVA metal, or a compound thereof.
化学式为##STR1##的含
硼杂环化合物已被发现作为润滑油的极压、抗磨和减摩添加剂具有实用价值,其中R.sub.1、R.sub.2、R.sub.3或R.sub.4中至少有一个是含有1至约30个碳原子的芳基、烷基芳基或芳基烷基基团。本发明的含
硼杂环化合物是
硼酸与一级胺和芳香氧化物的中间反应产物的反应产物。通过与
金属或其化合物特别是第一行过渡
金属或IVA族
金属或其化合物的
化学反应,可获得含
硼杂环化合物的
金属衍
生物。