王承学,孙敬茹,孙德.配合Pd催化剂薄荷醇与异丁烯羰基合成Validol[J].分子催化,2007,(3):249-254 |
配合Pd催化剂薄荷醇与异丁烯羰基合成Validol |
Carbonylation of Menthol and Isobutene on A Complex Pd Catalyst |
投稿时间:2006-03-24 修订日期:2006-07-26 |
DOI: |
中文关键词: 配合钯催化剂,薄荷醇,异丁烯,羰基合成,反应机理 |
英文关键词:Complex Pd catalyst,Menthol,Carbonylation,Isobutene,Mechanism |
基金项目:吉林省科技厅科研项目 |
王承学 孙敬茹 孙德 |
长春工业大学化工学院 吉林长春130012(王承学,孙德) ,中国科学院长春应用化学研究所 吉林长春130012(孙敬茹)
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中文摘要: |
用PdCL2(PPh3)2/PPh3/P-CH3C6H4SO3H复合催化体系,在间歇高压釡中,以二甲苯为溶剂,在一定的反应温度、CO/H2压力和薄荷醇与异丁烯浓度下,研究了主催化剂浓度和各种助催化剂的配比对薄荷醇转化率和反应速度的影响.在适宜的催化体系和反应体系中,进行了反应物的转化率、Validol的选择性和收率与反应时间关系实验.对98%以上Validol产物进行了FT-TR、MS、13C NMR和1H NMR鉴别.最后,完成了反应温度、CO压力和薄荷醇、异丁烯浓度对羰基合成Validol反应速度的影响实验,提出了该反应的反应机理和催化循环过程. |
英文摘要: |
The carbonylation reaction of menthol and isobutene to Validol on the PdCl2(PPh3)2/PPh3/p-CH3C5H4SO3H catalysts was studied in a bath reactor,in which was filled with dimethyl benzene solvent.Under the conditions of some temperature and CO/H2 pressure and some reactant concentrations,the effects of various ratio of main-Catalyst to cocatalysts on conversions and reaction rates of menthol were studied.In the present of proper catalytic system,the experiments,in which the conversions,selectivity and yield were changed with reaction time,were cared out.The construction of more than 98% Validol was distinguished by FT-IR,MS,13C NMR and 1H NMR.Finally,the effects of temperature,CO/H2 pressure and concentrations of menthol and isobutene on the reaction rats were finished.The reaction mechanism and process were given. |
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