title: Study on reactions of 2-(dinitromethylene)-4,5-imidazolidinedione.
abstract: Some new reactions of 2-(dinitromethylene)-4,5-imidazolidinedione (1) with water, alcohols, carboxylic acids, and alkalis were discovered. By reaction of 1 with carboxylic acids, large particle size 1,1-diamino-2,2-dinitroethylene (2) was prepared. By reaction of 1 with methanol, the methanol adduct (4) was synthesized and characterized. By reaction of 1 with water, the synthetic pathway of 2-methylimidazole to 2 could be achieved in a continuous process. By reaction of 1 with KOH, 2 and potassium dinitromethane (6) could be formed at different temperature, respectively. Compounds 1 and 4 decomposed into parabanic acid (5), losing nitrogen oxides and carbon oxides. Some explosive properties of 1 were studied. The mechanisms of synthesis of 1, 2, and 5 are discussed.
authors.affiliation: Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China. danluxiusan@hotmail.com
authors.forename: Huaqiang
authors.initials: H
authors.lastname: Cai
authors.forename: Yuanjie
authors.initials: Y
authors.lastname: Shu
authors.forename: Hui
authors.initials: H
authors.lastname: Huang
authors.forename: Bibo
authors.initials: B
authors.lastname: Cheng
authors.forename: Jinshan
authors.initials: J
authors.lastname: Li