65103-48-2Relevant academic research and scientific papers
X=Y-ZH SYSTEMS AS POTENTIAL 1,3-DIPOLES. PART 13 PROTOTROPIC GENERATION OF AZOMETHINE IMINES FROM HYDRAZONES
Grigg, Ronald,Dowling, Marie,Jordan, Maurice W.,Sridharan, Visuvanathar,Thianpatanagul, Sunit
, p. 5873 - 5886 (2007/10/02)
Hydrazones of aldehydes and ketones undergo to intermolecular cycloaddition to electronnegative olefins via azomethine imines, formed by a formal 1,2-prototropic shift, in low to moderate yield on heating in xylene or ethanol.In some instances the reaction is diverted to give products derived (at least formally) from an ene reaction.Similar intramolecular cycloadditions occur with unactivated terminal alkenes and alkynes.
Intramolekulare 1,3-dipolare Cycloadditionen von Diarylnitriliminen aus 2,5-Diaryltetrazolen
Meier, Hansruedi,Heimgartner, Heinz
, p. 1283 - 1300 (2007/10/02)
Alkenyl-substituted diaryl-nitrile-imines - generated by photolysis or thermolysis of alkenyl-substituted 2,5-diaryl-tetrazoles - undergo a regioselective intramolecular cycloaddition to yield new heterocyclic compounds, e.g. fused 2-pyrazolines.Wit
Intra- and Intermolecular + + 2> Cycloadditions of Aldehyde or Ketohydrazones
Shimizu, Tomio,Hayashi, Yoshiyuki,Nakano, Mineo,Teramura, Kazuhiro
, p. 134 - 141 (2007/10/02)
The reaction of several 2-(alkenyloxy)benzaldehydes (or 1-naphthaldehydes) (1) with arylhydrazine hydrochlorides leads to intramolecular + + 2> cycloadducts, 3-substituted 2-aryl-1,2,3,3a,4,9b(or 1,2,3,3a,4,11c)hexahydrobenzopyrano (or nap
CYCLOADDITIONS INTRAMOLECULAIRES CATIONIQUE 3+ + 2 ET DIPOLAIRE-1,3 DE PHENYLHYDRAZONES.
Fouchet, B.,Joucla, M.,Hamelin, J.
, p. 1333 - 1336 (2007/10/02)
In acidic medium, alkenyl phenylhydrazones lead, probably via a 3+ + 2 cationic cycloaddition, to fused ring system, which are difficult to obtain as primary products of thermal 1,3 dipolar cycloaddition.
