Pyrolysis Mechanisms of Quinoline and Isoquinoline with Density Functional Theory
The pyrolysis mechanisms of quinoline and isoquinoline were investigated using the density functional theory of quantum chemistry, including eight reaction paths and a common tautomeric intermediate 1-indene imine. It is concluded that the conformational tautomerism of the intermediate decides the pyrolysis products (C6H6, HC=C-CN, C6H5CN and HCCH) to be the same, and also decides the total disappearance rates of the reactants to be the same, for both original reactants quinoline and isoquinoline during the pyrolysis reaction. The results indicate that the intramolecular hydrogen migration is an important reaction step, which often appears in the paths of the pyrolysis mechanism. The activation energies of the rate determining steps are obtained. The calculated results are in good agreement with the experimental results.
LING Lixia ZHANG Riguang WANG Baojun XIE Kechang
Key Laboratory of Coal Science and Technology (Taiyuan University of Technology), Ministry of Education and Shanxi Province, Taiyuan 030024, China
国际会议
武汉
英文
709-717
2010-09-01(万方平台首次上网日期,不代表论文的发表时间)