139722-36-4Relevant articles and documents
Formation of 1,2-Dihydroquinazolin-4(3H)-ones. Reinvestigation of a Recently Reported 1,3,4-Benzotriazepine Synthesis
Fueloep, Ferenc,Simeonov, Mario,Pihlaja, Kalevi
, p. 531 - 538 (2007/10/02)
A recent paper (Bull.Chem.Soc.Jpn. 59, 1575/1986/) reported that the reactions of o-aminobenzoylhydrazine with benzylideneanilines lead to the formation of 1,3,4-benzotriazepin-5-one or 1-(o-benzylideneaminobenzoyl)-2-benzylidenehydrazines, depending on the substituents used.This is shown by the present paper to be incorrect.Depending on the proportions of the reagents, the above reactions lead to 1-(o-aminobenzoyl)-2-benzylidenehydrazines (7) or 2-aryl-3-benzylideneamino-1,2-dihydroquinazolin-4(3H)-ones (8).