Very Low Pressure Pyrolysis of 1,3-Cyclohexadiene. An Orbital Symmetry Nonallowed Reaction

Ze'Ev B. Alfassi, Sidney W. Benson, David M. Golden

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

Very low pressure pyrolysis (VLPP) of 1,3-cyclohexadiene yields only benzene and hydrogen uni-molecularly between 670 and 800°. RRKM calculations indicate that the data are compatible with the Arrhenius expression log (k/sec-1) = 13.4 - (59 ± 1)/θ. These parameters are very close to those to be expected from a mechanism wherein 1,3-cyclohexadiene is converted to 1,4-cyclohexadiene via a biradical intermediate. Concerted, orbital symmetry forbidden pathways cannot, however, be rejected as possibilities.

Original languageEnglish
Pages (from-to)4784-4788
Number of pages5
JournalJournal of the American Chemical Society
Volume95
Issue number15
DOIs
StatePublished - 1 Jul 1973

ASJC Scopus subject areas

  • Catalysis
  • Chemistry (all)
  • Biochemistry
  • Colloid and Surface Chemistry

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