Mass-spectral investigation of indolizine derivatives

The dissociative ionization of substituted 3-aroylindolizines proceeds with the successive loss of an aryl residue and CO. Detachment of OH and CHO groups proceeds simultaneously. The stabilities of the indolizines and the similarly constructed indole derivatives are compared.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 509–513, April, 1975.The authors thank A. B. Belikov for participating in the recording of the mass spectra.