Synthesis method of 3-substituent diphenyl sulfide

The invention discloses a synthesis method of 3-substituent diphenyl sulfide, which comprises the following steps: synthesizing hydroxyl: adding a sulfuric acid solution with the mass concentration of 30-70% into a raw material, conducting heating to 130-250 DEG C, and conducting reacting for 4-20 hours; synthesizing alkoxy: adding a sulfuric acid solution with the mass concentration of 30-70% and an alcohol solvent into the raw materials, conducting heating to 130-250 DEG C, and conducting reacting for 4-20 hours; and carrying out post-treatment on the obtained reaction product to obtain the 3-substituent diphenyl sulfide. The method is simple in process and convenient to operate, and the dangerous process of diazotization is avoided. 本发明公开了一种3-取代基二苯硫醚的合成方法，包括以下步骤：合成羟基：在原料中加入质量浓度为30％～70％的硫酸溶液，然后升温至130～250℃反应4～20小时；合成烷氧基：在原料中加入质量浓度为30％～70％的硫酸溶液和醇类溶剂，然后升温至130～250℃反应4～20小时；所得反应产物经后处理，得3-取代基二苯硫醚。本发明工艺简单，操作方便，避免了重氮化的危险工艺。