Studies in organic mass spectrometry. Part 25. Benzyl ion formation in chemical ionisation (methane or isobutane) of some ortho-alkylhetero-substituted diphenylcarbinols
- Autori: Bongiorno, D.; Ceraulo, L.; Lamartina, L.; Natoli, M.
- Anno di pubblicazione: 2000
- Tipologia: Articolo in rivista (Articolo in rivista)
- Parole Chiave: Analytical Chemistry; Spectroscopy; Organic Chemistry
- OA Link: http://hdl.handle.net/10447/243658
Abstract
The behaviour of some ortho-alkylhetero-substituted diphenylcarbinols, including deuterium labelled derivatives, under chemical ionisation (methane or isobutane) conditions has been investigated. It has been determined that ortho-alkylhetero diphenylmethyl cations formed by water elimination from the protonated molecule undergo consecutive rearrangements which afford benzyl (or tropylium) ions previously observed for ortho- substituted diphenylcarbenium ions generated by electron ionisation. This reaction also occurs under low-energy collision conditions. Copyright (C) 2000 John Wiley and Sons, Ltd.