Patent ID: 9695125
Date: 2017-07-04
CPC Classifications: C07D

Claim:
1. A method for synthesizing cationic bleach activators via a single-bath reaction, comprising steps of: 1). separately dissolving 4-chloromethylbenoyl chloride and caprolactam in its respective solvent, and adding an acid-binding agent into the caprolactam solution to obtain a caprolactam/acid-binding agent solution; 2). adding drop-by-drop the 4-chloromethylbenoyl chloride solution obtained in step 1) into the caprolactam/acid-binding agent solution, and stirring the mixture at room temperature to prepare a caprolactam/acid-binding agent/4-chloromethylbenoyl chloride solution; 3). adding tertiary amine into the caprolactam/acid-binding agent/4-chloromethylbenoyl chloride solution to make a reaction solution, and further treating the reaction solution with stirring and refluxing; and 4). filtrating and evaporating the reaction solution in step 3) to obtain a dry solid product of cationic bleach activators, and washing the dry solid product with a washing solvent to obtain a final product of cationic bleach activators.