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 unsymmetrically substituted 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
由甲基亚硝基呋喃和各种亲核试剂制备了一系列不对称取代的呋喃喃。对这些化合物及其母体呋喃喃的核磁共振研究表明,所有合成的呋喃烷均具有3-甲基衍生物的结构:在此基础上,提出了甲基硝基呋喃烷的3-甲基结构。在加热一些3-甲基呋喃喃衍生物时,发生部分异构化为相应的4-甲基异构体。