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Zhang Q, Zhang W, Cui R, Zhang Y, Niu D. Synthesis of 2,4-diarylated pyrimidines enabled by Ni-catalyzed C–sulfone bond activation. Org Chem Front 2023. [DOI: 10.1039/d2qo01935c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The readily available pyrimidinyl sulfones, in which the C–S bond is cleaved selectively, could serve as electrophiles in the Ni-catalyzed cross-coupling reactions to prepare 2,4-diarylated pyrimidines under mild conditions with a broad scope.
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Affiliation(s)
- Qian Zhang
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and School of Chemical Engineering, Sichuan University, Chengdu, China
- Sichuan Institute of Edible Fungi, Shizishan Road No. 4, Jinjiang district, Chengdu, China
| | - Wei Zhang
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and School of Chemical Engineering, Sichuan University, Chengdu, China
| | - Ruoyan Cui
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and School of Chemical Engineering, Sichuan University, Chengdu, China
| | - Yang Zhang
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and School of Chemical Engineering, Sichuan University, Chengdu, China
| | - Dawen Niu
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and School of Chemical Engineering, Sichuan University, Chengdu, China
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N-Directed Pd-Catalyzed Photoredox-Mediated C–H Arylation for Accessing Phenyl-Extended Analogues of Biginelli/Suzuki-Derived Ethyl 4-Methyl-2,6-diphenylpyrimidine-5-carboxylates. Catalysts 2021. [DOI: 10.3390/catal11091071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The availability and application of direct, functional group-compatible C–H activation methods for late-stage modification of small-molecule bioactives and other valuable materials remains an ongoing challenge in organic synthesis. In the current study, we demonstrate that a LED-activated, photoredox-mediated, Pd(OAc)2-catalyzed C–H arylation, employing a phenyldiazonium aryl source and either tris(2,2′-bipyridine)ruthenium(II) or (2,2′-bipyridine)bis[3,5-di-fluoro-2-[5-(trifluoromethyl)-2-pyridinyl-kN][phenyl-kC]iridium(III) as photoredox initiator, may successfully produce unprecedented mono- and bis-phenyl derivatives of functionality-rich 2,6-diphenylpyrimidine substrates at room temperature. The series of 19 substrates employed herein, which share the biologically-relevant 4-methyl-2,6-diphenylpyrimidine-5-carboxylate scaffold, were generated via a synthetic route involving (3-component) Biginelli condensation, oxidative dehydrogenation of the obtained 3,4-dihydropyrimidin-2(1H)-one to 2-hydroxypyrimidine, O-sulfonylation, and Suzuki-Miyaura C–C cross-coupling. Submission of these substrates to pyrimidine-N-atom-directed C–H arylation conditions led to regioselective phenylation at the ortho site(s) of the pyrimidine-C2-connected phenyl ring, revealing substituent-dependent electronic and steric effects. A focused library of 18 mono- and 10 bis-phenyl derivatives was generated. Its members exhibit interesting 3D and peripheral substitution features that render them promising for evaluation in drug discovery efforts.
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Shrimp shell supported palladium complex: an environmentally friendly catalyst for Heck coupling reactions. REACTION KINETICS MECHANISMS AND CATALYSIS 2021. [DOI: 10.1007/s11144-021-01942-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Immobilized Pd on Eggshell Membrane: A powerful and recyclable catalyst for Suzuki and Heck cross-coupling reactions in water. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121496] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Guo P, Fu Q, Yildiz C, Chen YT, Ollegott K, Froese C, Kleist W, Fischer RA, Wang Y, Muhler M, Peng B. Regulating the size and spatial distribution of Pd nanoparticles supported by the defect engineered metal–organic framework HKUST-1 and applied in the aerobic oxidation of cinnamyl alcohol. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00560a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A series of novel Pd@DE-HKUST-1(Cu/Pd) catalysts with different pydc feeding ratios were successfully synthesized. The size regime and the spatial distribution of the Pd NPs can be controlled by the amount of framework incorporated pydc.
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Palladium supported SBA-functionalizd 1,2-dicarboxylic acid: The first Pd-based heterogeneous synthesis of fluorenones. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2017.12.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Amini MM, Mohammadkhani A, Bazgir A. Dicarboxylic Acid-Functionalized MCM-41 with Embedded Palladium Nanoparticles as an Efficient Heterogeneous Catalyst for C-C Coupling Reactions. ChemistrySelect 2018. [DOI: 10.1002/slct.201702622] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
| | | | - Ayoob Bazgir
- Department of Chemistry; Shahid Beheshti University, General Campus; Iran
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Kim H, Phan NHT, Shin H, Lee HS, Sohn JH. Dehydrosulfurative arylation with concomitant oxidative dehydrogenation for rapid access to pyrimidine derivatives. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.10.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Pradhan S, Bhattacharyya A, John RP. A coordination driven supramolecular Pd2L4 self-assembly as heterogeneous catalyst for Buchwald–Hartwig amination reaction. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.02.083] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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