The invention relates to a novel process for the preparation of ether and thioether compounds of formula ##STR1## by reacting compounds of formula ##STR2## with compounds of formula R.sub.1 --Y wherein R, R.sub.1, X, Y and n are as defined in claim 1, in the presence of an acid acceptor and in an aliphatic ketone, which process is carried out under pressure in the temperature range from 115.degree. to 200.degree. C.
这项发明涉及一种新型工艺,用于制备公式##STR1##的醚和
硫醚化合物,方法是将公式##STR2##的化合物与公式R.sub.1 --Y的化合物在酸受体和脂肪酮的存在下反应,所述工艺在压力下进行,温度范围为115°C至200°C。