Comprehensive kinetic and mechanistic considerations for the gas-phase behaviour of pinane-type compounds

被引:24
作者
Stolle, Achim [1 ]
Ondruschka, Bernd
Bonrath, Werner
机构
[1] Univ Jena, Inst Tech Chem & Environm Chem, D-07743 Jena, Germany
[2] DSM Nutr Prod, R&D Chem Proc Technol, CH-4002 Basel, Switzerland
关键词
terpenoids; pyrolysis; reaction mechanisms; rearrangement; radical reactions; kinetic modelling;
D O I
10.1002/ejoc.200601098
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The thermal behaviour of selected pinane-type compounds, alpha-pinene (1), beta-pinene (2), pinane (3) and nopinone (4), has been investigated. The conversion of the bicyclic starting materials to their acyclic and monocyclic isomers as well as the consecutive reactions of the acyclic main isomerisation products are discussed. The conversion of 1-4 in a reaction network is presented and the experimental evidence for the formation of pyrolysis products by a biradical pathway is discussed. In addition to these results a kinetic model describing the isomerisation of the bicyclic compounds to their acyclic and monocyclic isomers is presented. A good correlation between kinetic simulations and experimental data is revealed. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007).
引用
收藏
页码:2310 / 2317
页数:8
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