A two-stage conversion of 2,6,8,12-tetraacetyl-4,10-dibenzyl-2,4,6,8,10,12-hexaazaisowurtzitane to 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane, involving nitrosation followed by nitration, is described. It is shown that the purity of the final product obtained by this method is superior to that obtained by the reported one-pot method. Nitrosation of 2,6,8,12-tetraacetyl-4,10-dibenzyl-2,4,6,8,10,12-hexaazaisowurtzitane in acetic acid is considered to be safer than nitrosation in pure dinitrogen tetroxide.
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Latypov et al. (2000) studied this question.
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