Abstract
The purpose is to find a suitable route for the synthesis of benzotriazole coupling reagents, simplify the synthesis steps and reduce the synthesis cost. In this paper, the synthesis techniques of benzotriazole coupling reagent HCTV have been studied, and a better synthesis route has been found. The design of benzotriazole coupling reagents, takes dichloronitrobenzene and hydrazine hydrate as the main raw materials. After four reaction processes, such as welding, salt formation and nucleophilic substitution, HCTC is obtained. With HCTC as the lead compound, it was chemically modified with other additives to find a new design route for benzotriazole coupling reagent.
