Unimolecular dissociations of the [2-hexanone]+˙ metastable ion

Unimolecular dissociations of the [2-hexanone]+˙ metastable ion

The metastable molecular ion of 2‐hexanone loses a methyl radical mainly (∼80%) from positions C(4) and C(6), in equal proportions, as indicated by 13C labelling. The necessary skeletal rearrangement of the butyl chain is interpreted in terms of a 1,2‐[enol‐olefin] +˙ shift. The results and the mech...

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Veröffentlicht in:Organic Mass Spectrometry 1987-07, Vol.22 (7), p.451-457
Hauptverfasser: Bouchoux, Guy, Tortajada, Jeanine, Dagaut, Jacques, Fillaux, Joëlle
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Exact sciences and technology
Mass spectrometry
Organic chemistry
Reactivity and mechanisms
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Zusammenfassung:The metastable molecular ion of 2‐hexanone loses a methyl radical mainly (∼80%) from positions C(4) and C(6), in equal proportions, as indicated by 13C labelling. The necessary skeletal rearrangement of the butyl chain is interpreted in terms of a 1,2‐[enol‐olefin] +˙ shift. The results and the mechanisms concerning the minor eliminations of C2H4, C2H5˙, C3H5˙ and C3H6 neutrals are also discussed.
ISSN:0030-493X
1096-9888
2376-3884
DOI:10.1002/oms.1210220712