Mass-spectrometric study of 6-methyl-2-aryl-7-benzylindolizines

The mass-spectral behavior of 15 compounds from the 6-methyl-2-aryl-7-benzylindolizine series was investigated, and it was shown that the peculiarities of their dissociative ionization are due to the formation of stable resonance-stabilized ions that contain a quaternized nitrogen atom in the heteroring. © 1982 Plenum Publishing Corporation.