期刊
CATALYSTS
卷 10, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/catal10111244
关键词
α -Pinene oxide; campholenic aldehyde; trans-carveol; isomerization; MoO3-zeolite BETA
资金
- Operational Programme Prague Competitiveness [CZ.2.16/3.1.00/24501]
- National Program of Sustainability [(NPU I LO1613) MSMT-43760/2015]
- UCT Prague
Natural source turpentine is an available source of alpha-pinene oxide. This compound's value is especially given by the possibility of producing important compounds campholenic aldehyde and trans-carveol. In this work, we would like to present the usage of MoO3-modified zeolite BETA in alpha-pinene oxide isomerization concerning campholenic aldehyde and trans-carveol formation using a wide range of solvents. Catalyst calcination temperature also influenced the reaction course (selectivity to desired compounds and reaction rate). MoO3-zeolite BETA was prepared by the wet impregnation method and characterized by different techniques. The use of polar aprotic solvents had the most positive effect on the reaction course. Solvent basicity and polarity considerably influenced the reaction rate and selectivity to particular products. The combination of high basicity and the high polarity was the most suitable for the studied reaction from the reaction rate point of view. Selectivity to campholenic aldehyde and trans-carveol was the most influenced by solvent basicity. Higher solvent basicity caused the preferential formation of trans-carveol, influence on selectivity to campholenic aldehyde formation was the opposite. The described catalyst may be used for alpha-pinene oxide rearrangement to both desired products dependently on the used solvent. Molybdenum offers an exciting alternative for previously described modifications of zeolites for this reaction.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据