Patent ID: 8119679

Claim:
A method for preparing 2,4-dinitroimidazole comprising the following steps: (1) preparing a methylene chloride solution containing 1,4-dinitroimidazole by synthesizing 1,4-dinitroimidazole by reacting 4-nitroimidazole with acetic acid and nitric acid, extracting the resulted 1,4-dinitroimidazole with methylene chloride, and removing water therefrom by using a desiccant; (2) adding chlorobenzene to the methylene chloride solution containing 1,4-dinitroimidazole obtained from the above step (1), allowing them to react at 120-140° C. for 4-5 hours, thereby resulting in 2,4-dinitroimidazole.