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Communication | Regular issue | Vol 22, No. 2, 1984, pp.271-274
Published online, 1st January, 1970
DOI: 10.3987/R-1984-02-0271
Synthesis and Thermal Rearrangement of 5-Chiloro-4,6-dinitrobenzofuroxan

William P. Norris* and Andrew Chafin

*Research Department, Naval Weapons Center, China Lake, CA 93555, U.S.A.

Abstract

5-Chloro-4,6-dinitrobenzofuroxan, prepared by nitration of 5-chlorobenzofuroxan, isomerizes thermally to 7-chloro-4,6-dinitrobenzofuroxan. The latter compound reacts with water, in the presence of potassium bicarbonate, to give the potassium salt of 7-hydroxy-4,6-dinitrobenzofuroxan and with methanol, in the presence of potassium bicarbonate, to give potassium 4,7-dihydro-4,6-dinitro-7,7-dimethoxybenzofuroxanide.