Studies in organic mass spectrometry. Part 25. Benzyl ion formation in chemical ionisation (methane or isobutane) of some ortho-alkylhetero-substituted diphenylcarbinols

Leopoldo Ceraulo, David Bongiorno, Liliana Lamartina, Maria Concetta Natoli, David Bongiorno, Liliana Lamartina, Leopoldo Ceraulo, Maria Concetta Natoli

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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.
Original languageEnglish
Pages (from-to)203-206
Number of pages4
JournalRapid Communications in Mass Spectrometry
Volume14
Publication statusPublished - 2000

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All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Spectroscopy
  • Organic Chemistry

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