Process for producing 1,4-dicyano-2-butene and catalyst therefor

摘要

It is aimed at to produce 1,4-dicyano-2-butene from 2-butene-1,4-diol and/or 3-butene-1,2-diol and hydrogen cyanide with a high reaction velocity and good selectivity. 2-Butene-1,4-diol and/or 3-butene-1,2-diol are (is) reacted with hydrogen cyanide in the presence of a catalyst comprising a cuprous halide and a non-aromatic organic amine hydrohalide.