Patent ID: 8017768
Filing Date: 2011-09-13
Classification: C06B,C07D

Abstract:
1. A method for preparing 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (HNIW) comprising the steps of: (A) adding stoichiometric amounts of starting materials, a benzylamine and glyoxal (40% aqueous solution) in a first solvent to form 2,4,6,8,10,12-hexabenzyl-2,4,6,8,10,12-hexaazaisowurtzitane (HBIW); (B) shaking said 2,4,6,8,10,12-hexabenzyl-2,4,6,8,10,12-hexaazaisowurtzitane (HBIW) and an acylating agent in a Parr apparatus with hydrogen and hydrogenation catalyst to form 4,10-dibenzyl-2,6,8,12-tetraacetyl-2,4,6,8,10,12-hexaazaisowurtzitane (TAIW); (C) adding 4,10-dibenzyl-2,6,8,12-tetraacetyl-2,4,6,8,10,12-hexaazaisowurtzitane (TAIW) to a debenzylating and nitrosating agent; (D) adding a second solvent to the mixture to promote crystallization of 4,10-dinitroso-2,6,8,12-tetraacetylhexaazaisowurtzitane (TAIW(NO) (E) adding said 4,10-dinitroso-2,6,8,12-tetraacetylhexaazaisowurtzitane (TAIW(NO) (F) filtering off said hexanitrohexaazaisowurtzitane (HNIW).