A method for the production of 3-cyano-3,5,5-trimethyl cyclohexanone by the reaction of isophorone with hydrogen cyanide in the presence of a quaternary ammonium salt or quaternary phosphonium salt and a basic compound as a catalyst in the form dissolved or dispersed in water or in the absence of water, which method comprises effecting said reaction by using said quaternary ammonium salt or quaternary phosphonium salt in an amount in the range of from 0.001 to 0.1 mol per mol of isophorone and said basic compound and in an amount in the range of from 0.5 to 3.0 mols per mol of said quaternary ammonium salt or quaternary phosphonium salt and, when water is used, using water in an amount in the range of 0.1 to 25% by weight based on the amount of isophorone and introducing hydrogen cyanidehydrocyanic acid at a ratio in the range of from 0.6 to 1.0 mol per mol of isophorone at a temperature in the range of from 90.degree. to 140.degree. C.
一种通过异佛酮与
氰化氢在四元
铵盐或四元膦盐存在下以及以一种碱性化合物作为催化剂的形式溶解或分散在
水中或在无
水的情况下反应来生产3-
氰基-3,5,5-三甲基
环己酮的方法,所述方法包括使用四元
铵盐或四元膦盐,其用量范围为异佛酮的摩尔量的0.001至0.1摩尔,并且使用碱性化合物的量范围为所述四元
铵盐或四元膦盐的摩尔量的0.5至3.0摩尔,当使用
水时,使用
水的量范围为异佛酮量的0.1至25%的重量,并在温度范围为90°C至140°C时以
氰化氢的摩尔量与异佛酮的摩尔量比为0.6至1.0进行所述反应。