| Abstract: | Mass spectra at 70, 15 and 10 eV are reported for methyl N-cyclohexylcarbamate, methyl N-trans-2-iodocyclohexylcarbamate, allyl N-cyclohexylcarbamate and allyl N-trans-2-iodocyclo-hexylcarbamate. Principal modes of ion fragmentation including hydrogen and skeletal rearrangements are discussed in terms of individual functional groups and their interaction, and are consistent in many cases with mechanisms previously proposed for other compounds. The effects of the iodo and the allyl groups, when present, predominate in the spectra. The application of McLafferty's ‘active site’ concept to these polyfunctional compounds is found to be useful. |
