Isomerization of tetrahydropyrans

N. I. Shuikin, I. F. Bel'skii, R. A. Karakhanov, B. Kozma, M. Bartok

Research output: Contribution to journalArticle


1. The transformations of α-alkyl-, α-phenyl-, and α-cyclohexyltetrahydropyrans in the vapor phase on a Pt-C catalyst at 340-350° were investigated. 2. α-Alkyl- and α-phenyltetrahydropyrans not only isomerize at the C-O bond, but also undergo partial decomposition to formaldehyde and the corresponding olefin (10-20%). 3. The isomerization of α-alkyltetrahydropyrans proceeds 70% at the C-O bond not next to the side substituent, and 20% at the other C-O bond, while that of α-phenyltetrahydropyran proceeds to an extent of 60% at the bond away from it. 4. The cyclohexane ring is dehydrogenated to benzene before isomerization of the tetrahydropyran ring.

Original languageEnglish
Pages (from-to)694-696
Number of pages3
JournalBulletin of the Academy of Sciences, USSR Division of Chemical Science
Issue number4
Publication statusPublished - Apr 1964

ASJC Scopus subject areas

  • Chemistry(all)

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