70873-24-4Relevant academic research and scientific papers
Azo Bridges from Azines, IV. Intramolecular Photocycloaddition of Parallel C = C and N = N Bonds
Albert, Bernhard,Berning, Wilfried,Burschka, Christian,Huenig, Siegfried,Prokschy, Frank
, p. 1465 - 1475 (2007/10/02)
The parallel C = C and N = N bonds in the rigid molecules 1 - 10 photocyclize nearly quantitatively, forming 1,2-diazetidines 11 - 20.Their structure is confirmed by spectroscopic methods and for 13 by X-ray analysis.Radiation induced denitrogenation, the normal reaction for similar compounds without neighbouring C = C bonds, is suppressed even with the sensitive derivatives of 2,3-diazabicycloheptene.Photocyclization of 6, carrying two neighbouring C = C bonds, includes only the norbornene bond.
