78394-28-2Relevant academic research and scientific papers
Cycloaddition Reactions of Quinoneimine N-Oxides and of Fluorenoneimine N-Oxide: Exocyclic Nitrones conjugated with Electron-withdrowing Rings
Damavandy, Jaffar A.,Jones, Richard A. Y.
, p. 712 - 717 (2007/10/02)
N-Phenyl-p-benzoquinoneimine N-oxide is generally unreactive in 1,3-dipolar cycloaddition reactions, but with acetylenedicarboxylate esters it gives indolones, formed from the initial adducts by a rearrangement which entails an alkoxycarbonyl migration.The analogous nitrone derived from anthraquinone gives unrearranged adducts with a variety of 1,3-dipolarophiles; monosubstituted alkynes and alkenes give 4-substituted-isoxazolines and -isoxazolidines.Fluorenoneimine N-oxide behaves similarly.We also describe some reactions of diphenylcyclopropene which were performed in an attempt to prepare cyclopropenoneimine N-oxides.
