期刊
CATALYSIS TODAY
卷 241, 期 -, 页码 237-245出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cattod.2013.12.004
关键词
alpha-Pinene oxide; Isomerisation; Trans-carveol; Zeolite beta; Fe modified beta zeolites
资金
- Specific University Research (MSMT) [20/2013]
- UniCRE project
- EU
- state budget of the Czech Republic
The isomerisation of alpha-pinene oxide has been intensively investigated for selective preparation of campholenic aldehyde, a compound used in the synthesis of fragrances. Selective preparation of another product of alpha-pinene oxide rearrangement, trans-carveol, still remains a challenging task. Trans-carveol is a highly valuable compound used in perfume bases, food flavour compositions and as an active pharmaceutical substance in chemoprevention of mammary carcinogenesis. In the present work zeolite beta with different SiO2/Al2O3 molar ratios was modified by iron, characterised and tested per se and in the modified form for trans-carveol preparation from alpha-pinene oxide. The isomerisation reaction was carried out in a polar basic solvent N,N-dimethylacetamide at 140 degrees C. The activities and selectivities of the catalysts were correlated with their acid properties and with the iron content. (C) 2013 Elsevier B.V. All rights reserved.
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