Volume 129, Issue 10 pp. 2753-2757
Zuschrift

ZnAl-Hydrotalcite-Supported Au25 Nanoclusters as Precatalysts for Chemoselective Hydrogenation of 3-Nitrostyrene

Yuan Tan

Yuan Tan

State Key Laboratory of Catalysis, iChEM, Gold Catalysis Research Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China

University of Chinese Academy of Sciences, Beijing, 100049 China

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Prof. Xiao Yan Liu

Corresponding Author

Prof. Xiao Yan Liu

State Key Laboratory of Catalysis, iChEM, Gold Catalysis Research Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China

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Dr. Leilei Zhang

Dr. Leilei Zhang

State Key Laboratory of Catalysis, iChEM, Gold Catalysis Research Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China

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Prof. Aiqin Wang

Prof. Aiqin Wang

State Key Laboratory of Catalysis, iChEM, Gold Catalysis Research Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China

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Dr. Lin Li

Dr. Lin Li

State Key Laboratory of Catalysis, iChEM, Gold Catalysis Research Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China

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Xiaoli Pan

Xiaoli Pan

State Key Laboratory of Catalysis, iChEM, Gold Catalysis Research Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China

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Prof. Shu Miao

Prof. Shu Miao

State Key Laboratory of Catalysis, iChEM, Gold Catalysis Research Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China

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Prof. Masatake Haruta

Prof. Masatake Haruta

State Key Laboratory of Catalysis, iChEM, Gold Catalysis Research Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China

Department of Applied Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo, 192-0397 Japan

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Dr. Haisheng Wei

Dr. Haisheng Wei

State Key Laboratory of Catalysis, iChEM, Gold Catalysis Research Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China

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Hua Wang

Hua Wang

State Key Laboratory of Catalysis, iChEM, Gold Catalysis Research Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China

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Prof. Fangjun Wang

Prof. Fangjun Wang

State Key Laboratory of Catalysis, iChEM, Gold Catalysis Research Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China

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Prof. Xiaodong Wang

Prof. Xiaodong Wang

State Key Laboratory of Catalysis, iChEM, Gold Catalysis Research Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China

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Prof. Tao Zhang

Corresponding Author

Prof. Tao Zhang

State Key Laboratory of Catalysis, iChEM, Gold Catalysis Research Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China

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First published: 31 January 2017
Citations: 42

Abstract

Chemoselective hydrogenation of 3-nitrostyrene to 3-vinylaniline is quite challenging because of competitive activation of the vinyl group and the nitro group over most supported precious-metal catalysts. A precatalyst comprised of thiolated Au25 nanoclusters supported on ZnAl-hydrotalcite yielded gold catalysts of a well-controlled size (ca. 2.0 nm)—even after calcination at 500 °C. The catalyst showed excellent selectivity (>98 %) with respect to 3-vinylaniline, and complete conversion of 3-nitrostyrene over broad reaction duration and temperature windows. This result is unprecedented for gold catalysts. In contrast to traditional catalysts, the gold catalyst is inert with respect to the vinyl group and is only active with regard to the nitro group, as demonstrated by the results of the control experiments and attenuated total reflection infrared spectra. The findings may extend to design of gold catalysts with excellent chemoselectivity for use in the synthesis of fine chemicals.

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