Chemical Research in Chinese Universities ›› 2022, Vol. 38 ›› Issue (2): 415-420.doi: 10.1007/s40242-021-1444-4

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An Eosin Y Encapsulated Cu(I) Covalent Metal Organic Framework for Efficient Photocatalytic Sonogashira Cross-coupling Reaction

YOU Peiye, WEI Rongjia, NING Guohong, LI Dan   

  1. College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, P. R. China
  • Received:2021-11-03 Revised:2021-11-30 Online:2022-04-01 Published:2021-11-30
  • Contact: WEI Rongjia, NING Guohong E-mail:rjwei@jnu.edu.cn;guohongning@jnu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Nos.21731002, 21975104, 21901085), the Guangdong Major Project of Basic and Applied Research, China(No.2019B030302009), the Guangdong Basic and Applied Basic Research Foundation, China(No.2019B151502024), the Guangdong Province Pearl River Scholar Funded Scheme, China(No.2019), and the Fundamental Research Funds for the Central Universities, China(No.21619315).

Abstract: Sonogashira cross-coupling reaction is significant for the formation of C―C bonds and the creation of new substance in organic synthesis, which is usually catalyzed using noble metal, such as palladium or non-precious metal, such as copper under harsh reaction conditions. Herein, we report the encapsulation of an organic dye(i.e., Eosin Y, EY) into a Cu(I) cyclic trinuclear unit(CTU) based covalent-metal organic framework(CMOF), namely EY@JNM-1, which demonstrates outstanding photocatalytic performance for the Sonogashira cross-coupling reaction of iodobenzene with alkynes. The EY@JNM-1 not only exhibited high catalytic activity for the alkynes(>99% conversion) and excellent selectivity for the cross-coupling product(>99%) under mild conditions, but also displayed excellent stability and recyclability.

Key words: Covalent-metal organic framework, Eosin Y, Photocata-lysis, Sonogashira cross-coupling reaction