88743-91-3Relevant academic research and scientific papers
1,3-Dipolar Cycloaddition Reactions between some C-Aryl Nitrogen Oxides with Electron-deficient Dipolarophils
Nour-El-Din, Ahmed M.,Mourad, Aboul-Fetouh E.
, p. 908 - 914 (2007/10/02)
Both C-(2-methylphenyl)-N-phenyl and C-(3-methylphenyl)-N-phenyl nitrones (1a, b) reacted with N-phenylmaleinimide and fumaronitrile to give the normal primary cycloadducts.The reaction of the two nitrones (1a, b) with 4-phenyl-1,2,4-triazoline-3,5-dione and diacetylacetylene afforded rearrangement products.The unexpected 1,3,4-oxadiazolidin-2-ones were isolated from reaction with phenylisocyanate.In contrast, tetracyanoethylene forms charge-transfer complexes with both nitrones instead of cycloaddition products.The structural elucidation of the reaction products was made on the bases of the elemental analysis as well as i.r. and 1H-n.m.r. spectral data.
