Reaction of Azomethine<i>N</i>-Oxides. III. Reactions of Some Azomethine<i>N</i>-Oxides with Fluoranil, Phenyl Vinyl Sulfone, and β-Nitrostyrene
作者:Ahmed Moukhtar Nour El-Din
DOI:10.1246/bcsj.59.1239
日期:1986.4
Isomerization of 3H-indole 1-oxides in the presence of tetrafluoro-2,5-cyclohexadiene-1,4-dione (fluoranil) to the thermodynamically more stable lactams was found to proceed via formation of charge-transfer complexes. However, addition of fluoranil to some open chain nitrones did not give the corresponding amides. Both electron-deficient β-nitrostyrene and phenyl vinyl sulfone did not form charge-transfer
发现 3H-吲哚 1-氧化物在四氟-2,5-环己二烯-1,4-二酮(荧苯胺)存在下异构化为热力学更稳定的内酰胺是通过形成电荷转移配合物来进行的。然而,将氟苯腈加入一些开链硝酮中并没有得到相应的酰胺。缺电子的 β-硝基苯乙烯和苯基乙烯基砜都没有与硝酮形成电荷转移络合物,而是通过 1,3-偶极环加成反应生成 4-或 5-取代的异恶唑烷。