A rhodium catalyst for single-step styrene production from benzene and ethylene

被引：103

作者：

Vaughan, Benjamin A. ^{[1
]}

Webster-Gardiner, Michael S. ^{[1
]}

Cundari, Thomas R. ^{[2
]}

Gunnoe, T. Brent ^{[1
]}

机构：

[1] Univ Virginia, Dept Chem, Charlottesville, VA 22903 USA

[2] Univ N Texas, Dept Chem, Ctr Adv Sci Comp & Modeling, Denton, TX 76203 USA

来源：

SCIENCE | 2015年 / 348卷 / 6233期

关键词：

C-H BOND; OLEFINS; HYDROPHENYLATION; HYDROARYLATION; ARYLATION; SUBSTITUTION; ALKYLATION; ACTIVATION;

D O I：

10.1126/science.aaa2260

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Rising global demand for fossil resources has prompted a renewed interest in catalyst technologies that increase the efficiency of conversion of hydrocarbons from petroleum and natural gas to higher-value materials. Styrene is currently produced from benzene and ethylene through the intermediacy of ethylbenzene, which must be dehydrogenated in a separate step. The direct oxidative conversion of benzene and ethylene to styrene could provide a more efficient route, but achieving high selectivity and yield for this reaction has been challenging. Here, we report that the Rh catalyst ((Fl)DAB)Rh(TFA)(eta(2)-C2H4) [(Fl)DAB is N,N'-bis(pentafluorophenyl)-2,3-dimethyl-1,4-diaza-1,3-butadiene; TFA is trifluoroacetate] converts benzene, ethylene, and Cu(II) acetate to styrene, Cu(I) acetate, and acetic acid with 100% selectivity and yields >= 95%. Turnover numbers >800 have been demonstrated, with catalyst stability up to 96 hours.

引用

页码：421 / 424

页数：4

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