Stereoselective hydrogenation of thymol

A. Tungler, T. Máthé, Z. Bende, J. Petro

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The stereoselective hydrogenation of thymol and menthone was studied in gas and liquid-phase reactions with palladium, rhodium, nickel and copper catalysts. The gas-phase hydrogenation of thymol and menthone on nickel and copper catalysts results in equilibrium mixtures of menthol isomers. On palladium, thymol gives menthone isomers. In the liquid phase, hydrogenation menthols are formed via menthones, in non-equilibrium ratios: smaller percentages of isomenthol and neo-isomenthol are formed, and the menthol: neomenthol ratios change with pH. On the basis of these observations, we proposed a reaction course for the hydrogenation of thymol and menthone.

Original languageEnglish
Pages (from-to)365-374
Number of pages10
JournalApplied Catalysis
Volume19
Issue number2
DOIs
Publication statusPublished - 1985

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Hydrogenation
Isomers
Palladium
Nickel
Copper
Catalysts
Liquids
Rhodium
Gases

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Stereoselective hydrogenation of thymol. / Tungler, A.; Máthé, T.; Bende, Z.; Petro, J.

In: Applied Catalysis, Vol. 19, No. 2, 1985, p. 365-374.

Research output: Contribution to journalArticle

Tungler, A, Máthé, T, Bende, Z & Petro, J 1985, 'Stereoselective hydrogenation of thymol', Applied Catalysis, vol. 19, no. 2, pp. 365-374. https://doi.org/10.1016/S0166-9834(00)81758-3
Tungler, A. ; Máthé, T. ; Bende, Z. ; Petro, J. / Stereoselective hydrogenation of thymol. In: Applied Catalysis. 1985 ; Vol. 19, No. 2. pp. 365-374.
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