Physicochemical properties and structures of 4-azafluorenones and 2,3-benzo-4-azafluorenones

The quantum-chemical characteristics and the results of a comparative analysis of the IR and electronic absorption spectra and the polarographic reduction of methyl-containing 4-azafluorenones (structural analogs of the alkaloid onychine - 1-methyl-4-azafluorenone) and condensed benzo-4-azafluorenones are presented. © 1988 Plenum Publishing Corporation.