89058-90-2Relevant academic research and scientific papers
4,5-Dihydro-1H-azepines from Activated Cyclobutenes and 1,3-Dipoles
Martin, Hans-Dieter,Mais, Franz-Josef,Mayer, Bernhard,Hecht, Hans-Juergen,Hekman, Mirko,Steigel, Alois
, p. 1145 - 1148 (2007/10/02)
Cycloaddition of diphenylnitrile ylide to dicyanocyclobutene and of a mesoionic oxazolium-5-olate to isopropylidenecyclobutenone yields dihydroazepine derivatives by cleavage of the strained internal ?-bonds in the primarily formed bicyclic adducts. - Key
