Synthesis method of 5-methyl-2-mercaptothiadiazole

The invention discloses a synthesis method of 5-methyl-2-mercaptothiadiazole, which comprises the following steps: in an organic solvent, by using N-acetylhydrazino dithioformate as a substrate, conducting reacting under the catalysis of solid superacid to obtain 5-methyl-2-mercaptothiadiazole. The granular solid superacid adopted in the method has the characteristics of no pollution, no corrosion, easiness in reactant separation and reusability, and is an environment-friendly catalyst. 本发明公开了一种5-甲基-2-巯基噻二唑的合成方法，在有机溶剂中，以N-乙酰肼基二硫代甲酸盐为底物，在固体超强酸的催化下，反应得到5-甲基2-巯基噻二唑。本发明的方法采用的颗粒型固体超强酸具有无污染无腐蚀、易于反应物分离、可重复利用的特点，是一种环境友好型催化剂。