Hydrogenation of Certain Natural Terpenes on CuO-Al2O3 and NiО-Cr2О3 Catalysts
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Translated
|
| Journal |
Chemistry for Sustainable Development
ISSN: 1817-1818
|
| Output data |
Year: 2006,
Volume: 14,
Number: 5,
Pages: 499-504
Pages count
: 6
|
| Authors |
Laev S.S.
1
,
Fomenko V.V.
1
,
Yurieva T.M.
2
,
Minyukova T.P.
2
,
Salakhutdinov N.F.
1
|
| Affiliations |
| 1 |
Vorozhtzov Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Science
|
| 2 |
Boreskov Institute of Catalysis SB RAS
|
|
Reaction of catalytic hydrogenation of natural compounds (limonene, α-pinene, β-pinene, camphene, 3-carene) on СuО-Al2O3, NiО-Cr2О3 catalysts and on Pt/γ-Al2O3 for comparison has been studied at elevated temperatures (180-350 oC) under pressure (2.5-3 atm) in a flow-through type catalytic set-up. Qualitative and quantitative analysis of the reaction products were conducted by the chromato-mass spectrometry method. The process goes most effectively and with high selectivity when used CuO-Al2O3 catalyst. Accordingly, either isomeric mixture of para-menthanes, or para-1-menthene is preferentially formed from limonene depending on the degree of the catalyst activity; a mixture of cis- and trans-pinanes with the latter isomer being predominant is formed from α- and β-pinenes; isomeric mixture of exo- and endo-isocamphanes in equal quantities is formed from camphene; and 1,1,4-trimethylcycloheptane, from 3-carene. p-Cymene and α-pinene are formed preferentially on catalyst NiO-Cr2O3 without hydrogen from limonene and β-pinene.