Process for the preparation of thioethers by reacting a silylated thiol of the general formula:
wherein R represents an organic group and R1, R2 and R3 are the same or different and each represents an alkyl group having 1 to 4 carbon atoms, with an organic halide, sulphate or sulphonate in the presence of hexamethylphosphoric triamide as a solvent or co-solvent. The process is carried out under neutral conditions in aprotic solvents at a temperature between 0° and 150°C.
通式为:其中 R 代表有机基团,R1、R2 和 R3 相同或不同,且各自代表具有 1 至 4 个碳原子的烷基的
硅烷化
硫醇与有机卤化物、
硫酸盐或
磺酸盐在作为溶剂或助溶剂的六甲基
磷酸三酰胺存在下反应制备
硫醚的工艺。 该工艺在中性条件下,在温度为 0° 至 150°C 的钝溶剂中进行。