Mass Spectra of Chlorinated Aromatics Formed in Pulp Bleaching. 2-Chlorinated Guaiacols

Article abstract of DOI:10.1002/oms.1210190210

The fragmentation of chlorinated guaiacols (2-methoxyphenols) on electron impact has been studied.The most common fragmentation processes are interpreted and in some cases the small differences between spectra of positional isomers are explained.In addition to the well-known alkyl-oxygen fission (loss of methyl radical), metastable ion studies and deuterium labelling have indicated several new fragmentation pathways.The most characteristic are the formation of ⁺ and ^+. ions.In general, however, the spectra of positional isomers are shown to be very similar.