Electron Ionization Mass Spectra of Derivatives of Sulfabenzamide and Related Compounds: Unusual Rearrangement Involving Migration of Carbonyl O-Atom

摘要

1. A skeletal rearrangement under EI conditions for N-alkyl-N-arylsulfono-, N-methyl-N-phenyl-and N,N-diphenyl-benzenecarboamides involving a migration of carbonyl O-atom is discovered; 2. The mechanism of formation of N-alkyl-arylcyanate cations is establised.