Homogeneous metathesis for the production of propene from butene
Homogeneous metathesis for the production of propene from butene
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DOI：
10.1016/j.apcata.2008.02.019
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发表时间：
2008-06
影响因子：
5.5
通讯作者：
W. Meyer;M. Radebe;D. W. Serfontein;Umesh Ramdhani;M. D. Toit;C. P. Nicolaides
中科院分区：
文献类型：
--
作者：
W. Meyer;M. Radebe;D. W. Serfontein;Umesh Ramdhani;M. D. Toit;C. P. Nicolaides
本文介绍了以9-环己基-9-磷杂双环[3.3.1]-壬烷为配体的均相Grubbs第一代催化剂Phobcat催化1-丁烯和2-丁烯交叉复分解制备丙烯和2-戊烯的反应。在20巴和50°C下的封闭系统中，不同1-丁烯：2-丁烯进料比下的反应混合物组成与基于热力学数据计算的平衡组成相当一致。与WO 3/SiO2催化剂上的多相复分解反应相比，均相复分解反应具有更好的反应控制性和产物选择性。
The cross-metathesis of 1-butene and 2-butene is described for the production of propene and 2-pentene using Phobcat, a homogeneous Grubbs first generation-type catalyst bearing 9-cyclohexyl-9-phosphabicyclo-[3.3.1]-nonane as ligand. In a closed system at 20bar and 50°C, the reaction mixture composition at different 1-butene:2-butene feed ratios is in fair agreement with the calculated composition at equilibrium based on thermodynamic data. Compared to heterogeneous metathesis over a WO3/SiO2catalyst, the homogeneous reaction exhibits better reaction control and selectivity to the desired products.