Synthesis of 2,2-dinitroethene-1,1-diamine from 2 methylpyrimidine-4,6-diol and treatment of the dinitromethane produced

Abstract

2,2-Dinitroethene-1,1-diamine (FOX-7) was prepared from 2-methylpyrimidine-4,6-diol. Dinitromethane remaining in the spent acid was disposed of by thermal decomposition or reduction with iron. Dinitromethane content in reaction mixtures was monitored by FTIR, UV-Vis spectroscopy and thin layer chromatography (TLC). Possible reuse of dinitrome¬thane is discussed. The thermal decomposition of the spent acid was studied using accelerating rate calorimetry (ARC).