1
|
Singh V, Jain H, Nath S, Adhikari D. Multielectron Redox Afforded by a Pincer Ligand Promoting Kumada Cross-Coupling Reactions. Chemistry 2023:e202303189. [PMID: 37988192 DOI: 10.1002/chem.202303189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/21/2023] [Accepted: 11/21/2023] [Indexed: 11/23/2023]
Abstract
The redox-active nature of a pincer has been exploited to conduct C-C cross-coupling reactions under mild conditions. A nickel complex with a NNN pincer was dimeric in the solid state, and the structure displayed a Ni2 N2 diamond core. In the dimeric structure, both ligand backbones house an electron, in the iminosemiquinonate form, to keep the metal's oxidation state at +2. In the presence of an aryl Grignard reagent, only 3 mol % loading the nickel complex generates a Kumada cross-coupled product in good yield from a wide variety of aryl-X (X= I, Br, Cl) substrates. That the ligand-based radical remains responsible for promoting such a coupling reaction following a radical pathway is suggested by TEMPO quenching. Furthermore, a radical-clock experiment along with tracing product distribution unambiguously supported the radical's involvement through the catalytic cycle. A series of thorough mechanistic probation, including computational DFT analysis, disclosed the cooperative action of both redox-active pincer ligand and the metal centre to drive the reaction.
Collapse
Affiliation(s)
- Vikramjeet Singh
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, SAS Nagar, 140306, India
| | - Harshit Jain
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, SAS Nagar, 140306, India
| | - Shounak Nath
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801, United States
| | - Debashis Adhikari
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, SAS Nagar, 140306, India
| |
Collapse
|
2
|
Gourlaouen C, Elaieb F, Brenner E, Matt D, Harrowfield J, Ricard L. Structural and conformational analysis of a biaryl phosphine integrating a calix[4]arene cavity. Can the phosphorus atom behave as an introverted donor? Dalton Trans 2023. [PMID: 37191123 DOI: 10.1039/d3dt00612c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The conformational preference of a cavity-based biaryl phosphine, namely 5-(2-diphenylphosphinyl-phenyl)-25,26,27,28-tetrapropyloxycalix[4]arene (L) has been investigated by density functional theory calculations. The analysis showed that the barrier to rotation about the C-C axle of the biaryl unit is only 10.7 kcal mol-1, this rendering possible access to conformers of two types, those in which the P lone pair sits at the cavity entrance and points to the calixarene interior, others with a more open structure where the P atom is located outside the cavity. As revealed by a single crystal X-ray diffraction study, the biaryl phosphine appears virtually as an atropisomer in the solid state in which the phosphorus atom lies totally out of the cavity defined by the four phenoxy rings.
Collapse
Affiliation(s)
- Christophe Gourlaouen
- Laboratoire de Chimie Quantique, Institut de Chimie, UMR 7177 CNRS-Université de Strasbourg, 4 rue Blaise Pascal, 67070 Strasbourg Cedex, France
| | - Fethi Elaieb
- Institut de Chimie, UMR 7177 CNRS, Université de Strasbourg, 4 Rue Blaise Pascal, 67070 Strasbourg Cedex, France.
| | - Eric Brenner
- Institut de Chimie, UMR 7177 CNRS, Université de Strasbourg, 4 Rue Blaise Pascal, 67070 Strasbourg Cedex, France.
| | - Dominique Matt
- Institut de Chimie, UMR 7177 CNRS, Université de Strasbourg, 4 Rue Blaise Pascal, 67070 Strasbourg Cedex, France.
| | - Jack Harrowfield
- Institut de Science et Ingénierie Supramoléculaire (ISIS), UMR 7606 CNRS, Université de Strasbourg, 8 rue Gaspard Monge, 67083 Strasbourg Cedex, France
| | - Louis Ricard
- Laboratoire de Chimie Moléculaire, CNRS UMR 9168, Ecole Polytechnique, 2 route de Saclay, F-91128 Palaiseau Cedex, France
| |
Collapse
|
3
|
Lamola JL, Moshapo PT, Holzapfel CW, Makhubela BC, Christopher Maumela M. Efficient system for facile access to ortho-substituted aryl boronates through palladium-catalysed borylation. Tetrahedron Lett 2023. [DOI: 10.1016/j.tetlet.2023.154432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
|
4
|
Shandu MP, Lamola JL, Holzapfel CW, Maumela MC, Moshapo PT. Application of
P
‐Bridged Biaryl Phosphines in Pd‐Catalyzed
α
‐Arylation Reactions. ChemistrySelect 2022. [DOI: 10.1002/slct.202203712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Malibongwe P. Shandu
- Department of Chemical Sciences University of Johannesburg Cnr Kingsway Avenue and University Road PO Box 524, Auckland Park 2006 Johannesburg South Africa
| | - Jairus L. Lamola
- Department of Chemical Sciences University of Johannesburg Cnr Kingsway Avenue and University Road PO Box 524, Auckland Park 2006 Johannesburg South Africa
| | - Cedric W. Holzapfel
- Department of Chemical Sciences University of Johannesburg Cnr Kingsway Avenue and University Road PO Box 524, Auckland Park 2006 Johannesburg South Africa
| | - Munaka Christopher Maumela
- Department of Chemical Sciences University of Johannesburg Cnr Kingsway Avenue and University Road PO Box 524, Auckland Park 2006 Johannesburg South Africa
- Research and Technology (R&T) Sasol (Pty) Ltd 1 Klasie Havenga Road Sasolburg 1947 South Africa
| | - Paseka T. Moshapo
- Department of Chemical Sciences University of Johannesburg Cnr Kingsway Avenue and University Road PO Box 524, Auckland Park 2006 Johannesburg South Africa
| |
Collapse
|
5
|
Li WX, Yang BW, Ying X, Zhang ZW, Chu XQ, Zhou X, Ma M, Shen ZL. Nickel-Catalyzed Direct Cross-Coupling of Diaryl Sulfoxide with Aryl Bromide. J Org Chem 2022; 87:11899-11908. [PMID: 35957561 DOI: 10.1021/acs.joc.2c01513] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The direct cross-couplings of diaryl sulfoxides with aryl bromides via C-S bond cleavage could be readily accomplished using nickel(II) as the catalyst, 1,2-bis(diphenylphosphino)ethane (dppe) as the ligand, and magnesium turnings as the reducing metal in THF, leading to the corresponding biaryls in moderate to good yields. The reaction exhibited a broad substrate scope and could be applied to a gram-scale synthesis. The "one-pot" reaction, which avoids the utility of presynthesized and moisture-labile organometallic compounds, is operationally simple and step-economic.
Collapse
Affiliation(s)
- Wen-Xin Li
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Bo-Wen Yang
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Xuan Ying
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Zhuo-Wen Zhang
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Xue-Qiang Chu
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Xiaocong Zhou
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing, Zhejiang 314001, China
| | - Mengtao Ma
- College of Science, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
| | - Zhi-Liang Shen
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| |
Collapse
|
6
|
Setati B, Moshapo PT, Holzapfel CW, Maumela MC. Palladium-catalyzed Heck reactions promoted by limonene-derived bicyclic phosphines. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2093646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Boitumelo Setati
- Department of Chemical Sciences, Research Centre for Synthesis and Catalysis, University of Johannesburg, Johannesburg, South Africa
| | - Paseka Thendo Moshapo
- Department of Chemical Sciences, Research Centre for Synthesis and Catalysis, University of Johannesburg, Johannesburg, South Africa
| | - Cedric Wahl Holzapfel
- Department of Chemical Sciences, Research Centre for Synthesis and Catalysis, University of Johannesburg, Johannesburg, South Africa
| | - Munaka Christopher Maumela
- Department of Chemical Sciences, Research Centre for Synthesis and Catalysis, University of Johannesburg, Johannesburg, South Africa
- Sasol (Pty) Ltd, Research & Technology, Sasolburg, South Africa
| |
Collapse
|
7
|
Lamola JL, Adeyinka AS, Malan FP, Moshapo PT, Holzapfel CW, Maumela MC. Exploring steric and electronic parameters of biaryl phosphacycles. NEW J CHEM 2022. [DOI: 10.1039/d1nj05769c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Steric and electronic parameters of the newly developed biaryl phosphacycles derived from the phobane[3.3.1] (Phob) and phosphatrioxa-adamantane (Cg) moieties were quantified from various experimental and theoretical methods.
Collapse
Affiliation(s)
- Jairus L. Lamola
- Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg, Kingsway Campus, Auckland Park 2006, South Africa
| | - Adedapo S. Adeyinka
- Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg, Kingsway Campus, Auckland Park 2006, South Africa
| | - Frederick P. Malan
- Department of Chemistry, University of Pretoria, Hatfield Campus, Hartfield 0002, South Africa
| | - Paseka T. Moshapo
- Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg, Kingsway Campus, Auckland Park 2006, South Africa
| | - Cedric W. Holzapfel
- Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg, Kingsway Campus, Auckland Park 2006, South Africa
| | - Munaka Christopher Maumela
- Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg, Kingsway Campus, Auckland Park 2006, South Africa
- Research and Technology, Sasol, 1 Klasie Havenga Rd, Sasolburg 1947, South Africa
| |
Collapse
|
8
|
Lamola JL, Moshapo PT, Holzapfel CW, Christopher Maumela M. Palladium-catalyzed borylation of aryl bromides and chlorides using phosphatrioxa-adamantane ligands. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2021.153572] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
9
|
Khan D, Parveen I, Shaily, Sharma S. Design, Synthesis and Characterization of Aurone Based α,β‐unsaturated Carbonyl‐Amino Ligands and their Application in Microwave Assisted Suzuki, Heck and Buchwald Reactions. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Danish Khan
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee 247 667 Uttarakhand India
| | - Iram Parveen
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee 247 667 Uttarakhand India
| | - Shaily
- Department of Chemistry D. B. S. (P.G.) College Dehradun 248001 Uttarakhand India
| | - Saurabh Sharma
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee 247 667 Uttarakhand India
| |
Collapse
|