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 a 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 employing 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° to 140°C.
一种通过
异佛尔酮与
氰化氢在季
铵盐或季
鏻盐以及作为催化剂的碱性化合物存在下以溶解或分散于
水的形式或在无
水的情况下反应生产 3-
氰基-3,5,5-三甲基
环己酮的方法,该方法包括通过使用所述季
铵盐或季
鏻盐以每摩尔
异佛尔酮 0.001 至 0.1 摩尔的量和所述碱性化合物以每摩尔所述季
铵盐或季
鏻盐 0.5 至 3.0 摩尔的量进行所述反应。1摩尔/摩尔的
异佛尔酮和所述碱性化合物,以及0.5至3.0摩尔/摩尔的所述季
铵盐或季
鏻盐,当使用
水时,使用0.当使用
水时,以
异佛尔酮的量为基准,
水的用量为 0.1 至 25% (重量),
氰化
氢氰酸的用量为 0.6 至 1.0 摩尔/摩尔
异佛尔酮,温度为 90° 至 140°C。