Synthesis, infrared and mass spectral studies of substituted 2-cyclohexyl-2,3-dihydro-1h-1,3,2-benzodiazaphosphole 2-oxides

摘要: A series of the title compounds have been prepared and structures assigned to them were confirmed by IR mass spectra. The existence hydrogen bonding between amidic hydrogens phosphoryl oxygen in these is indicated theIR benzodiazaphosphole ring system appears be quite stable under electron impact. An interesting type McLafferty rearrangement occurred many molecules resulting formation ions benzodiazaphosphinous acid along with ejection cyclo-hexane moiety from molecular ion. Cleavage P-N bonds leading theo-phenylene diamine cations observed