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He Y, Bao W, Li B, Fu X, Na B, Yuan D. Highly efficient removal of uranium from aqueous solution by a novel robust phosphonic acid functionalized aromatic-based hyper-crosslinked porous polymer. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08395-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sheetal, Sharma AK, Shaifali, Bhattacherjee D, Sharma N, Giri K, Das P. Supported-Pd catalyzed tandem approach for N-arylbenzamides synthesis. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Ghatak A, Das M. The Recent Progress on Supported and Recyclable Nickel Catalysts towards Organic Transformations: A Review. ChemistrySelect 2021. [DOI: 10.1002/slct.202100727] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Avishek Ghatak
- Department of Chemistry, Dr. A. P. J. Abdul Kalam Government College West Bengal State University) Kolkata 700156 India
| | - Madhurima Das
- Basic Science Department, Pailan College of Management and Technology Maulana Abul Kalam Azad University of Technology) Kolkata 700104 India
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Wang H, Shi F. Towards Economic and Sustainable Amination with Green and Renewable Feedstocks. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000505] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Hongli Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou Gansu 730000 China
| | - Feng Shi
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou Gansu 730000 China
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Esteban N, Ferrer ML, Ania CO, de la Campa JG, Lozano ÁE, Álvarez C, Miguel JA. Porous Organic Polymers Containing Active Metal Centers for Suzuki-Miyaura Heterocoupling Reactions. ACS APPLIED MATERIALS & INTERFACES 2020; 12:56974-56986. [PMID: 33305572 DOI: 10.1021/acsami.0c16184] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A new generation of confined palladium(II) catalysts covalently attached inside of porous organic polymers (POPs) has been attained. The synthetic approach employed was straightforward, and there was no prerequisite for making any modification of the precursor polymer. First, POP-based catalytic supports were obtained by reacting one symmetric trifunctional aromatic monomer (1,3,5-triphenylbenzene) with two ketones having electron-withdrawing groups (4,5-diazafluoren-9-one, DAFO, and isatin) in superacidic media. The homopolymers and copolymers were made using stoichiometric ratios between the functional groups, and they were obtained with quantitative yields after the optimization of reaction conditions. Moreover, the number of chelating groups (bipyridine moieties) available to bind Pd(II) ions to the catalyst supports was modified using different DAFO/isatin ratios. The resulting amorphous polymers and copolymers showed high thermal stability, above 500 °C, and moderate-high specific surface areas (from 760 to 935 m2 g-1), with high microporosity contribution (from 64 to 77%). Next, POP-supported Pd(II) catalysts were obtained by simple immersion of the catalyst supports in a palladium(II) acetate solution, observing that the metal content was similar to that theoretically expected according to the amount of bipyridine groups present. The catalytic activity of these heterogeneous catalysts was explored for the synthesis of biphenyl and terphenyl compounds, via the Suzuki-Miyaura cross-coupling reaction using a green solvent (ethanol/water), low palladium loads, and aerobic conditions. The findings showed excellent catalytic activity with quantitative product yields. Additionally, the recyclability of the catalysts, by simply washing it with ethanol, was excellent, with a sp2-sp2 coupling yield higher than 95% after five cycles of use. Finally, the feasibility of these catalysts to be employed in tangible organic reactions was assessed. Thus, the synthesis of a bulky compound, 4,4'-dimethoxy-5'-tert-butyl-m-terphenylene, which is a precursor of a thermal rearrangement monomer, was scaled-up to 2 g, with high conversion and 96% yield of the pure product.
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Affiliation(s)
- Noelia Esteban
- IU CINQUIMA, Universidad de Valladolid, Paseo Belén 5, E-47011 Valladolid, Spain
| | - María L Ferrer
- Materials Science Factory, Instituto de Ciencia de Materiales de Madrid, ICMM-CSIC, Campus de Cantoblanco, 28049 Madrid, Spain
| | - Conchi O Ania
- CEMHTI CNRS (UPR 3079), University of Orléans, 45071 Orléans, France
| | - José G de la Campa
- Department of Applied Macromolecular Chemistry, Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, Juan de la Cierva 3, E-28006 Madrid, Spain
| | - Ángel E Lozano
- Department of Applied Macromolecular Chemistry, Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, Juan de la Cierva 3, E-28006 Madrid, Spain
- SMAP, UA-UVA_CSIC, Associated Research Unit to CSIC, Universidad de Valladolid, Paseo Belén 7, E-47011 Valladolid, Spain
| | - Cristina Álvarez
- Department of Applied Macromolecular Chemistry, Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, Juan de la Cierva 3, E-28006 Madrid, Spain
- SMAP, UA-UVA_CSIC, Associated Research Unit to CSIC, Universidad de Valladolid, Paseo Belén 7, E-47011 Valladolid, Spain
| | - Jesús A Miguel
- IU CINQUIMA, Universidad de Valladolid, Paseo Belén 5, E-47011 Valladolid, Spain
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