Nn. Makhova et al., THE SCHMIDT REARRANGEMENT OF METHYL FUROXANYL KETONES AND FUROXANCARBOXYLIC ACIDS - A NEW SYNTHETIC ROUTE TO AMINOFUROXANS, Mendeleev communications, (2), 1995, pp. 56-58
The Schmidt rearrangement of methyl furoxanyl ketones and furoxancarbo
xylic acids has been carried out for the first time, exemplified by 3,
4-diacetylfuroxan and 4-carboxy-3-(ethoxycarbonyl)furoxan, and this re
action has been shown to be a convenient method for the preparation of
aminofuroxans.