Gas Chromatography/Electron Impact Mass Spectrometry Applied to the Differentiation of the Positional Isomers of Long-chain n-Alkylcyclohexanones

Article abstract of DOI:10.1002/oms.1210240910

The influence of n-butyl group position upon the fragmentation behaviour of the three isomeric n-butylcyclohexanones was studied.The different fragmentation processes are described and have been applied to the differentation of the positional isomers of long-chain n-alkylcyclohexanones.In the case of the 4-n-alkyl isomers, an interesting mechanism involving a recyclization is proposed and substantiated by deuterium labelling.