78523-89-4Relevant academic research and scientific papers
The Stabilisation of Carbanionic Centres by Neutral N-Heterocyclic Rings.
Katritzky, Alan R.,Grzeskowiak, Nicholas E.,Siddiqui, Tayabba,Jayaram, Chandra,Vassilatos, Socrates M.
, p. 528 - 558 (2007/10/02)
α-Carbanions were generated from N-benzyl derivatives of 2-phenylquinazolin-4-one, 1,2,3-benzotriazin-4-one, and 3,4,5-triphenyl-2-imidazolone, and α-ring-dianions from N-benzyl derivatives of 1,3(4H)-isoquinolinedione, quinazolinedione, 5,5-dimethyl-2,4-
Keteimines as Intermediates to Heterocycles. Part 3. Rearrangement of 3-Iminoisoxazolines to 2-Imino-oxazolines
Sarlo, Francesco De,Guarna, Antonio,Mascagni, Paolo,Carrie, Robert,Guenot, Pierre
, p. 1367 - 1370 (2007/10/02)
N-Substituted hydroxylamines (2) add to 2-benzoyl-N,2-diphenylvinylideneamine (1) and the adducts are easily dehydrated to give the 3-iminoisoxazolines (4).Compounds (4) with 2-aryl substituents rearrange spontaneously to give the 2-imino-oxazolines (5) or (6), but the 2-methyl derivative is more stable and only rearranges on heating. 2-Imino-3-acylaziridines (8) or (9) are assumed to be the intermediates; the expected 2-imino-oxazoline (5b) was isolated among the products during an attempted synthesis of 1,3-diphenyl-2-phenylimino-3-benzoylaziridine (8b) from benzoylphenylcarbene and diphenylcarbodi-imide.
