Unsymmetrically substituted furoxans. IIII. Methylnitrofuroxan: Its structure and behavior toward nucleophilie substitution
作者:A. Gasco、V. Mortarini、G. Ruà、A. Serafino
DOI:10.1002/jhet.5570100429
日期:1973.8
A series of unsymmetricallysubstituted furoxans have been prepared from methyinitro-furoxan and a variety of nucleophilic reagents. The nmr study of these compounds and of their parent furazans suggested the structure of 3-methyl derivatives for all the furoxans synthesized: on this ground the 3-methyl structure for methylnitrofuroxan was proposed. On heating some 3-methylfuroxan derivatives, a partial
4-Methyl-3-(arylsulfonyl)furoxans: a new class of potent inhibitors of platelet aggregation
作者:R. Calvino、R. Fruttero、D. Ghigo、A. Bosia、G. P. Pescarmona、A. Gasco
DOI:10.1021/jm00095a028
日期:1992.8
A series of 4-methyl-3-(arylthio)furoxans were synthesized by oxidation of 1-(arylthio)-2-methylglyoxymes with dinitrogentetroxide. Reduction with trimethyl phosphite of the furoxan derivatives afforded the corresponding furazans, while oxidation with an equimolar amount of 30% hydrogen peroxide in acetic acid or with an excess of 81% hydrogen peroxide in trifluoroacetic acid afforded the corresponding