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

Leopoldo Ceraulo, Maria Concetta Natoli, Liliana Lamartina, David Bongiorno, 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.
Lingua originaleEnglish
pagine (da-a)203-206
Numero di pagine4
RivistaRapid Communications in Mass Spectrometry
Volume14
Stato di pubblicazionePublished - 2000

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Butanes
Methane
Ionization
Mass spectrometry
Ions
Deuterium
Cations
Derivatives
Molecules
Electrons
Water

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Organic Chemistry
  • Spectroscopy

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title = "Studies in organic mass spectrometry. Part 25. Benzyl ion formation in chemical ionisation (methane or isobutane) of some ortho-alkylhetero-substituted diphenylcarbinols",
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.",
keywords = "Analytical Chemistry; Spectroscopy; Organic Chemistry",
author = "Leopoldo Ceraulo and Natoli, {Maria Concetta} and Liliana Lamartina and David Bongiorno and David Bongiorno and Liliana Lamartina and Leopoldo Ceraulo and Natoli, {Maria Concetta}",
year = "2000",
language = "English",
volume = "14",
pages = "203--206",
journal = "Rapid Communications in Mass Spectrometry",
issn = "0951-4198",
publisher = "John Wiley and Sons Ltd",

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TY - JOUR

T1 - Studies in organic mass spectrometry. Part 25. Benzyl ion formation in chemical ionisation (methane or isobutane) of some ortho-alkylhetero-substituted diphenylcarbinols

AU - Ceraulo, Leopoldo

AU - Natoli, Maria Concetta

AU - Lamartina, Liliana

AU - Bongiorno, David

AU - Bongiorno, David

AU - Lamartina, Liliana

AU - Ceraulo, Leopoldo

AU - Natoli, Maria Concetta

PY - 2000

Y1 - 2000

N2 - 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.

AB - 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.

KW - Analytical Chemistry; Spectroscopy; Organic Chemistry

UR - http://hdl.handle.net/10447/243658

M3 - Article

VL - 14

SP - 203

EP - 206

JO - Rapid Communications in Mass Spectrometry

JF - Rapid Communications in Mass Spectrometry

SN - 0951-4198

ER -