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

Authors

  • Ming Lu Chemical Engineering College, Nanjing University of Science and Technology, Nanjing 210094, China
  • Xiaobing Liu, Chemical Engineering College, Nanjing University of Science and Technology, Nanjing 210094, China
  • Xiaoyu Yu Chemical Engineering College, Nanjing University of Science and Technology, Nanjing 210094, China
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.

full text

similar resources

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

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, oper...

full text

Preparation and characterization of 3,5-dinitro-1H-1,2,4-triazole.

Neat 3,5-dinitro-1H-1,2,4-triazole was obtained in quantitative yield from potassium 3,5-dinitro-1,2,4-triazolate and sulfuric acid. The compound was purified by sublimation in vacuo at 110 °C. Pure HDNT is a hygroscopic white solid that is impact and friction sensitive and decomposes explosively upon heating to 170 °C. However, the presence of impurities might lower the decomposition temperatu...

full text

Preparation of SRN1-type coupling adducts from aliphatic gem-dinitro compounds in ionic liquids.

S(RN)1-type coupling adducts are readily prepared by the reaction between a-sulfonylesters or a-cyanosulfones and gem-dinitro compounds in ionic liquids. The reactions progress smoothly and recovered ionic liquids can be used for several iterations, as long as they are washed with water to remove alkali metallic salts. The reaction rate is slower than the corresponding S(RN)1 reaction in DMSO, ...

full text

Dev118802 1357..1367

Bone morphogenetic protein (BMP) signaling plays many roles in skull morphogenesis. We have previously reported that enhanced BMP signaling through the BMP type IA receptor (BMPR1A) in cranial neural crest cells causes craniosynostosis during postnatal development. Additionally, we observed that 55% of Bmpr1a mutant mice show neonatal lethality characterized by a distended gastrointestinal trac...

full text

Preparation of Solid Superacid SO42-/ZnO-TiO2 and Its Action on Synthesis of Dimethyl Carbonate from Urea and Methanol

SO42-/ZnO-TiO2 catalyst was prepared by sulfating ZnO-TiO2 powders with H2SO4 solution. The catalyst was characterized by XRD, IR and Hammett indicator. The catalyst showed strong acidity(H0 ≦-16.0). The optimum conditions are found that the calcination temperature is 823K and the so...

full text

My Resources

Save resource for easier access later

Save to my library Already added to my library

{@ msg_add @}


Journal title

volume 3  issue 2

pages  133- 139

publication date 2010-12-31

{@ msg @}

By following a journal you will be notified via email when a new issue of this journal is published.

Keywords

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023