Transformation pathways of 2,2-dimethyloxirane on aluminosilicates: The effects of catalyst structure and reaction conditions

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Abstract

The ring transformation reactions of 2,2-dimethyloxirane were studied over various aluminosilicates (HZSM-5, CuZSM-5, HY, A1MCM-41 or NaN 3-loaded A1MCM-41) in a pulse reactor at 423 K. The main reactions identified were isomerisation and cyclic dimerisation. The product formation selectivities could be tuned by varying the pore size of the molecular sieves and/or altering the reaction parameters. Large pore size and mild conditions favoured isomerisation, while an optimally constrained environment and overloading the catalyst with the epoxide (increased) pulse size) was advantageous for cyclic dimerisation.

Original languageEnglish
Pages (from-to)2711-2716
Number of pages6
JournalStudies in Surface Science and Catalysis
Volume154 C
Publication statusPublished - Jan 1 2004

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Keywords

  • 2,2-Dimethyoxirane
  • Aluminosilicates
  • Reaction mechanisms
  • Ring transformations

ASJC Scopus subject areas

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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