Chemical Research in Chinese Universities ›› 2017, Vol. 33 ›› Issue (5): 811-815.doi: 10.1007/s40242-017-6455-9

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Heterogeneous h-BN@Cyclodextrin@Pd(Ⅱ) Nanomaterial:Fabrication, Characterization and Application as a Highly Efficient and Recyclable Catalyst for C-C Coupling Reactions

SANG Rui, CHENG Xu, LI Weijian, LUO Pengfei, ZHANG Yong, NIE Ruifang, HAI Li, WU Yong   

  1. Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu 610041, P. R. China
  • Received:2016-11-16 Revised:2016-12-24 Online:2017-10-01 Published:2017-03-20
  • Contact: HAI Li,E-mail:smile@scu.edu.cn;WU Yong,wyong@scu.edu.cn E-mail:smile@scu.edu.cn;wyong@scu.edu.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China(Nos.81373259, 81573286).

Abstract:

An efficient and ligand-free method for the Suzuki and Heck cross-coupling reactions has been successfully developed using h-BN-supported palladium as the catalyst. This green methodology represents a cost-effective and operationally convenient process for the synthesis of biaryls, stilbenes and acrylates. Wide scope of substrates, good to excellent yields, low reaction time, water as solvent, ligand-free, non-toxicity and recyclability of the catalyst are the main merits of these protocols. In addition, the h-BN@γ-CD@Pd(Ⅱ) nanomaterial has been fully characterized by TG, SEM, IR, XRD, XPS and ICP-AES analysis. And it could be easily recovered and reused for at least nine times without any considerable loss of catalytic activity. Above all, this work demonstrates the possibility of using cyclodextrin-modified h-BN as an efficient support for the hydrophilic heterogeneous catalysts.

Key words: Hexagonal boron nitride, Cyclodextrin, Heterogeneous catalysis, C-C cross coupling, Water