Preparation of organoaluminum compounds in the presence of a catalytic amount of ti, zr, nb, v, sc, u, or hf

摘要

Diethylaluminium hydride is prepared by reacting triethylaluminium with hydrogen and an aluminium alloy at elevated temperature and superatmospheric pressure, said alloy comprising a major proportion of aluminium and a minor proportion of one or more of the metals titanium, vanadium, zirconium and niobium. It is preferred that the proportion of aluminium should be at least 98% by weight. The reaction is carried out at a temperature between 80 and 200 DEG C. at a pressure between 60 and 350 atmospheres. An excess of hydrogen is used.