A Method for the Synthesis of Tetranitroglycoluril fromImidazo-[4,5-d]-imidazoles with Loss of Dinitrogen Oxide

Report No. ARL-RP-0515
Authors: William M Sherrill; Eric C Johnson; Joseph E Banning
Date/Pages: December 2014; 12 pages
Abstract: A new method for the preparation of tetranitroglycoluril (TNGU, Sorguyl) is described, in which imidazo-[4,5-d]-imidazoles are nitrated with the elimination of N2O to generate TNGU. This method of TNGU synthesis results in material that is less sensitive than material produced with alternative routes. Additionally, a new spherical morphology of TNGU is disclosed. This morphology exhibits an even higher resistance to external insult even than material synthesized with the new method.
Distribution: Approved for public release
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Last Update / Reviewed: December 1, 2014