As. Kulikov et al., SYNTHESIS OF (2-BROMO-2-HYDROXYIMINOACETYL)FURAZANS (OR FUROXANS) AND3,4-BIS[FURAZANOYL(OR FUROXANOYL)]FUROXANS, Russian chemical bulletin, 43(3), 1994, pp. 445-448
(2-Bromo-2-hydroxyiminoacetyl)furazans and -furoxans were synthesized
by nitrosation of bromoacetylfurazans and -furoxans with nitrosylsulfu
ric acid in cone. H2SO4 An efficient method for preparing the previous
ly unknown 3,4-bis[furazanoyl(or furoxanoyl)]furoxans has been propose
d; it consists of the reaction of acetylfurazans and acetylfuroxans wi
th a mixture of a nitrating reagent and a catalytic amount of a nitros
ating reagent in cone. H2SO4.