Gm. Kulkarni et Mv. Kulkarni, ORTHO EFFECT IN THE EI AND CI MASS-SPECTRA OF SOME 4-ARYLOXYMETHYLCARBOSTYRILS, Indian Journal of Heterocyclic Chemistry, 7(1), 1997, pp. 71-72
A generalized mass spectral fragmentation has been presented for some
4-aryloxymethylcarbostyrils. The high intensity M+-H peak observed in
the El spectra of o-chloro compound (lib) is explained in terms of a c
yclic chloronium ion. In the chemical ionization (CI), the o-chlorophe
noxy moiety reacts with the molecular ion giving rise to a dichlorinat
ed species.