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IJC-B Vol.46B(03) [March 2007] >

Title: Synthesis of CL-20: By oxidative debenzylation with cerium (IV) ammonium nitrate (CAN)
Authors: Gore, G M
Sivabalan, R
Nair, U R
Saikia, A
Venugopalan, S
Gandhe, B R
Keywords: Cerium (IV) ammonium nitrate (CAN)
Low cost debenzylation
Issue Date: Mar-2007
Publisher: CSIR
IPC Code: Int.Cl.⁸C07D
Abstract: Hexanitrohexaazaisowurtzitane (HNIW or CL-20), one of the most powerful high explosives of today, is a polycyclic nitramine cage compound. The synthesis of CL-20 is described from 2,6,8,12-tetraacetyl-4,10-dibenzyl hexaazaisowurtzitane (TADBIW) using debenzylation followed by nitration. TADBIW on reaction with cerium (IV) ammonium nitrate (CAN) gives the debenzylated product, which on nitration with HNO₃/H₂SO₄ provides CL-20. Alternatively, the debenzylated product on acetylation yields 2,4,6,8,10,12-hexaacetyl-2,4,6,8,10,12-hexaazaisowurtzitane (HAIW), which on nitration produces CL-20.
Page(s): 505-508
ISSN: 0376-4699
Source:IJC-B Vol.46B(03) [March 2007]

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