Ring opening, dimerisation and oligomerisation reactions of methyloxirane on solid acid and base catalysts

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Abstract

The reactions of methyloxirane were studied in a pulse microreactor over Nafion-H, K10 montmorillonite, Mg-Al L(ayered) D(ouble) H(ydroxide) and NaN 3-loaded SiMCM-41, to cover a wide acid-base range. The first two solid substances that are acidic, produced appreciable conversion at 363K, while the latter two that are basic, were hardly active at this temperature. At higher temperature (393K), however, they displayed fair activity. The nearly superacidic Nafion-H was the most active and transformed the reactant in various ways: single ring opening producing exclusively propionaldehyde, cyclic dimerisation giving five- and six-membered ring compounds, di- and trimerisation producing linear oligomers all occurred. Over the less acidic K10 montmorillonite neither cyclic nor linear oligomer was observed. The NaN 3-loaded SiMCM-41 preferred cyclic dimerisation to single ring opening, while the behaviour of the Mg-Al LDH was the opposite.

Original languageEnglish
Pages (from-to)307-311
Number of pages5
JournalJournal of Molecular Catalysis A: Chemical
Volume208
Issue number1-2
DOIs
Publication statusPublished - Feb 2 2004

Fingerprint

Oligomerization
Dimerization
dimerization
Bentonite
montmorillonite
Clay minerals
oligomers
Oligomers
catalysts
acids
Catalysts
Acids
rings
Temperature
pulses
propylene oxide
temperature
perfluorosulfonic acid

Keywords

  • Dimerisation
  • Linear oligomerisation
  • Methyloxirane
  • Ring opening
  • Solid acids and bases

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

Cite this

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title = "Ring opening, dimerisation and oligomerisation reactions of methyloxirane on solid acid and base catalysts",
abstract = "The reactions of methyloxirane were studied in a pulse microreactor over Nafion-H, K10 montmorillonite, Mg-Al L(ayered) D(ouble) H(ydroxide) and NaN 3-loaded SiMCM-41, to cover a wide acid-base range. The first two solid substances that are acidic, produced appreciable conversion at 363K, while the latter two that are basic, were hardly active at this temperature. At higher temperature (393K), however, they displayed fair activity. The nearly superacidic Nafion-H was the most active and transformed the reactant in various ways: single ring opening producing exclusively propionaldehyde, cyclic dimerisation giving five- and six-membered ring compounds, di- and trimerisation producing linear oligomers all occurred. Over the less acidic K10 montmorillonite neither cyclic nor linear oligomer was observed. The NaN 3-loaded SiMCM-41 preferred cyclic dimerisation to single ring opening, while the behaviour of the Mg-Al LDH was the opposite.",
keywords = "Dimerisation, Linear oligomerisation, Methyloxirane, Ring opening, Solid acids and bases",
author = "Andr{\'a}s F{\'a}si and I. P{\'a}link{\'o} and A. G{\"o}m{\"o}ry and I. Kiricsi",
year = "2004",
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TY - JOUR

T1 - Ring opening, dimerisation and oligomerisation reactions of methyloxirane on solid acid and base catalysts

AU - Fási, András

AU - Pálinkó, I.

AU - Gömöry, A.

AU - Kiricsi, I.

PY - 2004/2/2

Y1 - 2004/2/2

N2 - The reactions of methyloxirane were studied in a pulse microreactor over Nafion-H, K10 montmorillonite, Mg-Al L(ayered) D(ouble) H(ydroxide) and NaN 3-loaded SiMCM-41, to cover a wide acid-base range. The first two solid substances that are acidic, produced appreciable conversion at 363K, while the latter two that are basic, were hardly active at this temperature. At higher temperature (393K), however, they displayed fair activity. The nearly superacidic Nafion-H was the most active and transformed the reactant in various ways: single ring opening producing exclusively propionaldehyde, cyclic dimerisation giving five- and six-membered ring compounds, di- and trimerisation producing linear oligomers all occurred. Over the less acidic K10 montmorillonite neither cyclic nor linear oligomer was observed. The NaN 3-loaded SiMCM-41 preferred cyclic dimerisation to single ring opening, while the behaviour of the Mg-Al LDH was the opposite.

AB - The reactions of methyloxirane were studied in a pulse microreactor over Nafion-H, K10 montmorillonite, Mg-Al L(ayered) D(ouble) H(ydroxide) and NaN 3-loaded SiMCM-41, to cover a wide acid-base range. The first two solid substances that are acidic, produced appreciable conversion at 363K, while the latter two that are basic, were hardly active at this temperature. At higher temperature (393K), however, they displayed fair activity. The nearly superacidic Nafion-H was the most active and transformed the reactant in various ways: single ring opening producing exclusively propionaldehyde, cyclic dimerisation giving five- and six-membered ring compounds, di- and trimerisation producing linear oligomers all occurred. Over the less acidic K10 montmorillonite neither cyclic nor linear oligomer was observed. The NaN 3-loaded SiMCM-41 preferred cyclic dimerisation to single ring opening, while the behaviour of the Mg-Al LDH was the opposite.

KW - Dimerisation

KW - Linear oligomerisation

KW - Methyloxirane

KW - Ring opening

KW - Solid acids and bases

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