Pillarquinone‐Based Porous Polymer for a Highly‐Efficient Heterogeneous Organometallic Catalysis. Issue 12 (24th May 2019)

• Record Type: Journal Article
• Authors: Lan, Shang; Yang, Xuan; Shi, Kejia; Fan, Rong; Ma, Da
• Is Part Of: ChemCatChem. Volume 11:Issue 12(2019)
• Page Start: 2864
• Page End: 2869
• Publication Date: 2019-05-24
• Subjects: porous materials -- pillararene -- heterogeneous catalysis -- Suzuki-coupling reaction; Catalysis -- Periodicals; 541.39505
• DOI: 10.1002/cctc.201900516
• Languages: English
• ISSNs: 1867-3880

Abstract

Abstract: Pillar[5]quinone (PQ[5])‐based porous polymer has been prepared by crosslinking and oxidating pillar[5]arene (PA[5]). Quinone was used as an unorthodox ligand to load palladium‐catalyst with high loading ratio (up to 12.0 wt %). Catalyst was well dispersed on solid support in the form of Pd 2+ ‐specie. Pd‐loaded PQ[5]‐based heterogeneous catalyst was highly efficient for Suzuki‐coupling reactions (22‐ to 1485‐fold higher than Pd/C based on turnover frequency). It was superior compared to other existing heterogeneous catalysts for selective catalytic reaction. This heterogeneous catalyst had good thermo‐stability, and could be reused and recycled. Abstract : A pillar of catalysis : A pillarquinone‐based porous polymer for high ratio palladium‐catalyst loading and efficient heterogeneous catalysis has been prepared by crosslinking and oxidating pillar[5]arene (PA[5]). Quinone was used as an unorthodox ligand to load palladium‐catalyst with high loading ratio. Catalyst was well dispersed on solid support in the form of Pd 2+ ‐specie. The catalyst was highly efficient for Suzuki‐coupling reactions and could be reused and recycled.