Highly selective formation of imines catalyzed by silver nanoparticles supported on alumina

doi:10.1016/S1872-2067(14)60033-4

催化学报 ›› 2014, Vol. 35 ›› Issue (5): 670-676.DOI: 10.1016/S1872-2067(14)60033-4

Highly selective formation of imines catalyzed by silver nanoparticles supported on alumina

Jerrik Mielby, Raju Poreddy, Christian Engelbrekt, Søren Kegnæs

DTU Chemistry, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark

收稿日期:2014-01-02 修回日期:2014-01-09 出版日期:2014-04-18 发布日期:2014-04-24
通讯作者: Søren Kegnæs
基金资助:
This work was supported by the Danish Council for Independent Research (10-093717, 12-127580).

Highly selective formation of imines catalyzed by silver nanoparticles supported on alumina

Jerrik Mielby, Raju Poreddy, Christian Engelbrekt, Søren Kegnæs

DTU Chemistry, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark

Received:2014-01-02 Revised:2014-01-09 Online:2014-04-18 Published:2014-04-24
Contact: Søren Kegnæs
Supported by:
This work was supported by the Danish Council for Independent Research (10-093717, 12-127580).

摘要/Abstract

摘要：

The oxidative dehydrogenation of alcohols to aldehydes catalyzed by Ag nanoparticles supported on Al₂O₃ was studied. The catalyst promoted the direct formation of imines by tandem oxidative dehydrogenation and condensation of alcohols and amines. The reactions were performed under mild conditions and afforded the imines in high yield (up to 99%) without any byproducts other than H₂O. The highest activity was obtained over 5 wt% Ag/Al₂O₃ in toluene with air as oxidant. The reactions were also performed under oxidant-free conditions where the reaction was driven to the product side by the production of H₂ in the gas phase. The use of an efficient and selective Ag catalyst for the oxidative dehydrogenation of alcohol in the presence of amines gives a new green reaction protocol for imine synthesis.

关键词: Heterogeneous catalysis, Silver nanoparticle, Oxidative dehydrogenation, Alcohol, Aldehyde, Imine

Abstract:

Key words: Heterogeneous catalysis, Silver nanoparticle, Oxidative dehydrogenation, Alcohol, Aldehyde, Imine

Jerrik Mielby, Raju Poreddy, Christian Engelbrekt, Søren Kegnæs. Highly selective formation of imines catalyzed by silver nanoparticles supported on alumina[J]. 催化学报, 2014, 35(5): 670-676.

Jerrik Mielby, Raju Poreddy, Christian Engelbrekt, Søren Kegnæs. Highly selective formation of imines catalyzed by silver nanoparticles supported on alumina[J]. Chinese Journal of Catalysis, 2014, 35(5): 670-676.

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链接本文: https://www.cjcatal.com/CN/10.1016/S1872-2067(14)60033-4

https://www.cjcatal.com/CN/Y2014/V35/I5/670

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Highly selective formation of imines catalyzed by silver nanoparticles supported on alumina

Highly selective formation of imines catalyzed by silver nanoparticles supported on alumina

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