Chemical Research in Chinese Universities ›› 2024, Vol. 40 ›› Issue (4): 682-689.doi: 10.1007/s40242-024-4129-y

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Supported Recyclable Metal-free Frustrated Lewis Pair Catalyst for Catalytic Hydrogenation of Substituted Pyridines to Piperidines

MA Shaohua1,2, TANG Zhiyong1,2   

  1. 1. CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P. R. China;
    2. University of Chinese Academy of Sciences, Beijing 100049, P. R. China
  • Received:2024-05-20 Online:2024-08-01 Published:2024-07-24
  • Contact: TANG Zhiyong,zytang@nanoctr.cn E-mail:zytang@nanoctr.cn
  • Supported by:
    This work was supported by the Strategic Priority Research Program of Chinese Academy of Sciences (No. XDB36000000), the National Key R&D Program of China (Nos. 2021YFA1200302, 2022YFA1205400) and the National Natural Science Foundation of China (Nos. 92356304, 92056204).

Abstract: The construction of heterogeneous frustrated Lewis pairs (FLPs) catalysts is crucial for realizing highly efficient and recyclable pyridines catalytic hydrogenation. In this work, we prepared a recyclable heterogenous FLPs catalyst CMP-BF with conjugated microporous polymer CMP-ethynyl as the support via self-catalyzed 1,1-carboboration reaction with commercial Lewis acid B(C6F5)3. The as-synthesized CMP-BF demonstrates superior heterogenous catalytic hydrogenation performance (conversion> 99%), and considerable stability (84% conversion after three cycles) in recyclable hydrogenation of 2,6-phenylpyridine. This work provides insights into the fabrication and catalytic application of recyclable heterogenous FLP catalysts.

Key words: Pyridine hydrogenation, Frustrated Lewis pair, Conjugated microporous polymer