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高等学校化学研究 ›› 2017, Vol. 33 ›› Issue (2): 231-238.doi: 10.1007/s40242-017-6420-7

• Articles • 上一篇    下一篇

Synthesis, Post-modification and Catalytic Properties of Metal-organic Framework NH2-MIL-53(Al)

LIU Lili, TAI Xishi, ZHOU Xiaojing, LIU Lijuan   

  1. School of Chemistry & Chemical Engineering and Environmental Engineering, Weifang University, Weifang 261061, P. R. China
  • 收稿日期:2016-10-11 修回日期:2016-10-28 出版日期:2017-04-01 发布日期:2016-11-28
  • 通讯作者: LIU Lili,E-mail:liulili122@126.com;TAI Xishi,E-mail:taixs@wfu.edu.cn E-mail:liulili122@126.com;taixs@wfu.edu.cn
  • 基金资助:

    Supported by the Promotive Research Fund for Young and Middle-aged Scientists of Shandong Province, China(No. BS2014CL021), the Project of Shandong Provincical Higher Educational Science and Technology Program, China(No.J14LC01) and the Technology Research and Development Program of Weifang, China(No.2014GX030).

Synthesis, Post-modification and Catalytic Properties of Metal-organic Framework NH2-MIL-53(Al)

LIU Lili, TAI Xishi, ZHOU Xiaojing, LIU Lijuan   

  1. School of Chemistry & Chemical Engineering and Environmental Engineering, Weifang University, Weifang 261061, P. R. China
  • Received:2016-10-11 Revised:2016-10-28 Online:2017-04-01 Published:2016-11-28
  • Contact: LIU Lili,E-mail:liulili122@126.com;TAI Xishi,E-mail:taixs@wfu.edu.cn E-mail:liulili122@126.com;taixs@wfu.edu.cn
  • Supported by:

    Supported by the Promotive Research Fund for Young and Middle-aged Scientists of Shandong Province, China(No. BS2014CL021), the Project of Shandong Provincical Higher Educational Science and Technology Program, China(No.J14LC01) and the Technology Research and Development Program of Weifang, China(No.2014GX030).

摘要:

A postsynthetic modification method was used to prepare salicylaldehyde functionalized metal-organic frameworks through the nucleophilic addition of salicylaldehyde with the amine group present in the frameworks of NH2-MIL-53(Al). Hydroxyl groups were successfully grafted onto NH2-MIL-53(Al), and imine groups were formed. Importantly, these hydroxyl and imine groups of the resulting NH2-MIL-53(Al)-SA can be used as the anchoring group to stabilise Au3+ ions and Au0 nanoparticles(NPs). By doing this, Au3+ ions and Au0 NPs were successfully encapsulated in the cages of NH2-MIL-53(Al) by a simple impregnation method. The resulting gold functionalized NH2-MIL-53(Al) showed good catalytic activities in the one-pot synthesis of structurally divergent propargylamines by three-component coupling reactions of aldehydes, amines and alkynes. Various aromatic/aliphatic aldehydes, aromatic alkynes, and piperidine were able to undergo three-component coupling on NH2-MIL-53(Al)-Au. In addition, the catalyst NH2-MIL-53(Al)-Au was recovered easily by centrifugation and reused up to four times. Thus, it can be used for the environmentally friendly synthesis of propargylamines.

关键词: Metal-organic framework, Postmodification, NH2-MIL-53(Al), Three-component coupling, Propargylamine

Abstract:

A postsynthetic modification method was used to prepare salicylaldehyde functionalized metal-organic frameworks through the nucleophilic addition of salicylaldehyde with the amine group present in the frameworks of NH2-MIL-53(Al). Hydroxyl groups were successfully grafted onto NH2-MIL-53(Al), and imine groups were formed. Importantly, these hydroxyl and imine groups of the resulting NH2-MIL-53(Al)-SA can be used as the anchoring group to stabilise Au3+ ions and Au0 nanoparticles(NPs). By doing this, Au3+ ions and Au0 NPs were successfully encapsulated in the cages of NH2-MIL-53(Al) by a simple impregnation method. The resulting gold functionalized NH2-MIL-53(Al) showed good catalytic activities in the one-pot synthesis of structurally divergent propargylamines by three-component coupling reactions of aldehydes, amines and alkynes. Various aromatic/aliphatic aldehydes, aromatic alkynes, and piperidine were able to undergo three-component coupling on NH2-MIL-53(Al)-Au. In addition, the catalyst NH2-MIL-53(Al)-Au was recovered easily by centrifugation and reused up to four times. Thus, it can be used for the environmentally friendly synthesis of propargylamines.

Key words: Metal-organic framework, Postmodification, NH2-MIL-53(Al), Three-component coupling, Propargylamine