Patent ID: 6107483
Filing Date: 2000-08-22
Classification: C07D

Abstract:
A process for synthesizing 4,10-dinitro-2,6,8,12-tetraoxa-4,10-diazatetracyclo-[5.5.0.0.sup.5,9 0.sup.3,11 ]-dodecane, comprising:(a) combining at least one hexa-substituted piperazine derivative with a medium, said medium being in a range from about 55.degree. C. to about 70.degree. C. in temperature and comprising at least one nitronium anion source and at least one acid sufficiently strong to generate nitronium anions from the nitronium anion source, and maintaining the medium from about 55.degree. C. to about 70.degree. C. to permit the hexa-substituted piperazine derivative and nitronium anions to react and form 4,10-dinitro-2,6,8,12-tetraoxa-4,10-diazatetracyclo-[5.5.0.0.sup.5,9 0.sup.3,11 ]-dodecane;(b) combining the medium with at least one NO.sub.x scavenger; and(c) subsequent to said (a) combining of the hexa-substituted piperazine-derivative with the medium, cooling the medium into a sufficiently low temperature range to precipitate the 4,10-dinitro-2,6,8,12-tetraoxa-4,10-diazatetracyclo-[5.5.0.0.sup.5,9 0.sup.3,11 ]-dodecane.