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Rajalakshmi C, Radhakrishnan A, Sankuviruthiyil M, Gopinathan A, Thomas VI. UNRAVELLING THE MECHANISM OF COBALT (II) CATALYZED O-ARYLATION REACTION BETWEEN ARYL HALIDES AND PHENOLS: A DFT STUDY. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122385] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Modak A, Nett AJ, Swift EC, Haibach MC, Chan VS, Franczyk TS, Shekhar S, Cook SP. Cu-Catalyzed C–N Coupling with Sterically Hindered Partners. ACS Catal 2020; 10:10495-10499. [PMID: 37063689 PMCID: PMC10104551 DOI: 10.1021/acscatal.0c02965] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Copper, an earth-abundant metal, has reemerged as a viable alternative to the versatile Pd-catalyzed C-N coupling. Coupling sterically hindered reaction partners, however, remains challenging. Herein, we disclose the discovery and development of a pyrrole-ol ligand to facilitate the coupling of ortho-substituted aryl iodides with sterically hindered amines. The ligand was discovered through a library screening approach and highlights the value of mining heteroatom-rich pharmaceutical libraries for useful ligand motifs. Further evaluation revealed that this ligand is uniquely effective in these challenging transformations. The reaction enables the coupling of sterically hindered primary and secondary amines, anilines, and amides with broad functional group tolerance.
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Affiliation(s)
- Atanu Modak
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405-7102, United States
| | - Alex J. Nett
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Elizabeth C. Swift
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Michael C. Haibach
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Vincent S. Chan
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Thaddeus S. Franczyk
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Shashank Shekhar
- Process Research and Development, AbbVie Inc., 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Silas P. Cook
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405-7102, United States
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Gurjar KK, Sharma RK. Synthetic and computational studies on CuI/ligand pair promoted activation of C(Aryl)-Cl bond in C-N coupling reactions. Heliyon 2020; 6:e03233. [PMID: 32055723 PMCID: PMC7005438 DOI: 10.1016/j.heliyon.2020.e03233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 11/26/2019] [Accepted: 01/13/2020] [Indexed: 11/23/2022] Open
Abstract
Cu/ligand-mediated coupling reactions have been widely investigated in the recent past. However, activation of cheaper aryl chlorides is still a great limitation of these reactions. During the course of present investigations efforts have been made to develop a normal and facile CuI/ligand pair protocol for arylation of phthalimide using aryl chlorides. The protocol has also been extended for arylation of amines. On the basis of experimental and theoretical results, a catalytic cycle has also been proposed and it has been established that these reactions follow oxidative addition-reductive elimination (OA-RE) pathway. These studies have indicated that tetracoordinated [Cu(L1)(L2)]+ complex is active catalytic species in these reactions.
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Morarji DV, Gurjar KK. Theoretical and Experimental Studies: Cu(I)/Cu(II) Catalytic Cycle in CuI/Oxalamide-Promoted C–N Bond Formation. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00224] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Ahmad K, Khan BA, Akhtar T, Khan J, Roy SK. Deciphering the mechanism of copper-catalyzed N-arylation between aryl halides and nitriles: a DFT study. NEW J CHEM 2019. [DOI: 10.1039/c9nj03860d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mechanism of the CuI/DMEDA-catalyzed tandem hydrolysis/N-arylation of benzonitrile with aryl iodide was studied using the DFT method.
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Affiliation(s)
- Khalil Ahmad
- Department of Chemistry
- Mirpur University of Science and Technology (MUST)
- Mirpur 10250
- Pakistan
| | - Bilal Ahmad Khan
- Department of Chemistry
- University of Azad Jammu and Kashmir
- Muzaffarabad 13100
- Pakistan
| | - Tashfeen Akhtar
- Department of Chemistry
- Mirpur University of Science and Technology (MUST)
- Mirpur 10250
- Pakistan
| | - Jahanzeb Khan
- Department of Chemistry and Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Soumendra K. Roy
- Institute of Theoretical and Computational Chemistry
- Shaanxi key Laboratory of Catalysis, School of Chemical and Environmental Science
- Shaanxi University of Technology
- Hanzhong
- P. R. China
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Ahmed MN, Ahmad K, Yasin KA, Farooq T, Khan BA, Roy SK. Ligand-free Cu(ii)-catalyzed aerobic etherification of aryl halides with silanes: an experimental and theoretical approach. NEW J CHEM 2019. [DOI: 10.1039/c9nj01777a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Owing to their wide occurrence in nature and immense applications in various fields, the synthesis of aryl alkyl ethers has remained a focus of interest.
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Affiliation(s)
- Muhammad Naeem Ahmed
- Department of Chemistry
- The University of Azad Jammu & Kashmir
- Muzaffarabad 13100
- Pakistan
| | - Khalil Ahmad
- Department of Chemistry, Mirpur University of Science and Technology (MUST)
- Mirpur 10250 (AJK)
- Pakistan
| | - Khawaja Ansar Yasin
- Department of Chemistry
- The University of Azad Jammu & Kashmir
- Muzaffarabad 13100
- Pakistan
| | - Tayyaba Farooq
- Department of Chemistry
- The University of Azad Jammu & Kashmir
- Muzaffarabad 13100
- Pakistan
| | - Bilal Ahmad Khan
- Department of Chemistry
- The University of Azad Jammu & Kashmir
- Muzaffarabad 13100
- Pakistan
| | - Soumendra K. Roy
- Institute of Theoretical and Computational Chemistry
- Shaanxi Key Laboratory of Catalysis
- School of Chemical & Environmental Science
- Shaanxi University of Technology
- Hanzhong
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