53411-86-2Relevant academic research and scientific papers
Photo-valence isomerization between 2-phenyl-1,3-oxazepine and 3-phenyl-2-oxa-4-azabicyclo[3,2,0]hepta-3,6-diene
Tezuka,Seshimoto,Mukai
, p. 373 - 374 (1974)
Irradiation of 2-phenyl-1,3-oxazepine (I) with 300 or 350 nm light afforded 3-phenyl-2-oxa-4-azabicyclo[3,2,0]hepta-3,6-diene (II), whereas irradiation of (II) with 250 nm light caused ring opening to give (I).
