Reactivity of Electron Impact Ionized Large-ring Cycloalkylamines. Loss of CnH2n+1. Alkyl Radicals from Long-chain Aliphatic Compounds with a Terminal Enamine or Ester Function (Lipids)

Article abstract of DOI:10.1002/oms.1210270509

Large-ring cycloalkylamines rearrange after electron impact ionization into long-chain enamines.A general mechanism is proposed for their fragmentation, and a parallel is established with the fragmentation of long-chain esters (lipids).It is shown that the parent ions rearrange into a series of interconverting branched onium ions from which alkyl radicals are lost.The mechanism of the interconversion is discussed.