24400-13-3Relevant articles and documents
METHYLATION EN PHASE GAZEUSE DE QUELQUES FONCTIONS ORGANIQUES PAR L'ION DIMETHYLIODONIUM
Jortay, C.,Flammang, R.,Maquestiau, A.
, p. 727 - 734 (2007/10/02)
Electron impact ionization of iodomethane at high pressure (ca. 1 torr) yields high concentrations of dimethyliodonium ions (CH3I+CH3).Their reactivity towards various functional groups has been studied by mass spectrometry techniques, including in some instances collisional activation.Most of the compounds studied show the methylation process, except aliphatic alcohols and some aromatic compounds like benzene, anisole, furan, tiophene.Nitriles and isonitriles present a very high methyl cation affinity.Other ionization processes have also been observed, e.a. protonation, charge exchange and hydride abstraction.The degree of competition between these processes depends on the nature of the functional groups.Some unusual ion structures have been detected for isonitriles and pyridines.
