Electron impact Mass Spectra of 3,5,7-Triaryl- and -Trialkyl-4H-1,2-Diazepines

Article abstract of DOI:10.1002/oms.1210181006

Electron impact mass spectra of 3,5,7-trisubstituted 4H-1,2-diazepines indicate that aryl substituents lead to N2 expulsion while alkyl substituents do not.A common fragmentation pattern is observed and discussed for all alkyldiazepines, most of which are newly reported compounds.Assignments are based on electron impact mass spectra of deuteriated substrates and high resolution mass spectra.A previous interpretation of N2 expulsion is corrected.