Improved preparation of 3,7-dinitro-1,3,5,7-tetraazabicyclo[3,3,1] nonane (DPT) from urea

Subject Areas : Journal of the Iranian Chemical Research

Ming Lu ¹ , Xiaobing Liu, ² , Xiaoyu Yu ³

1 - Chemical Engineering College, Nanjing University of Science and Technology, Nanjing 210094, China
2 - Chemical Engineering College, Nanjing University of Science and Technology, Nanjing 210094, China
3 - Chemical Engineering College, Nanjing University of Science and Technology, Nanjing 210094, China

Received: 2010-03-20 Accepted : 2010-05-30 Published : 2010-12-31

Keywords: Urea, 3, 7-dinitro-1, 3, 5, 7-tetraazabicyclo[3, 3, 1]nonane (DPT), Nitration, N, N’- dinitrourea (DNU),

Abstract :

An improved and facile preparation of 3,7-dinitro-1,3,5,7-tetraazabicyclo [3,3,1] nonane(DPT) has been developed starting from urea. In the procedure DPT was synthesized viaN,N’-dinitrourea (DNU) as intermediate and various operating parameters such astemperature, pH and molar ratio of reagents have been optimized to give maximum yield ofthe desired product. The low cost method is concise, operationally simple and offers highpurity and satisfactory yield of DPT.

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