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Cai H, Khanal HD, Lee YR. Base‐Promoted Direct Cascade Transformation of Chromones to Coumarins via Benzannulation and Transesterification. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hongyun Cai
- School of Chemical Engineering Yeungnam University Gyeongsan 38541 (Republic of Korea
| | - Hari Datta Khanal
- School of Chemical Engineering Yeungnam University Gyeongsan 38541 (Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering Yeungnam University Gyeongsan 38541 (Republic of Korea
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2
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Piontek A, Ochędzan‐Siodłak W, Bisz E, Szostak M. Cobalt−NHC Catalyzed C(sp
2
)−C(sp
3
) and C(sp
2
)−C(sp
2
) Kumada Cross‐Coupling of Aryl Tosylates with Alkyl and Aryl Grignard Reagents. ChemCatChem 2020. [DOI: 10.1002/cctc.202001347] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Aleksandra Piontek
- Department of Chemistry Opole University 48 Oleska Street 45-052 Opole Poland
| | | | - Elwira Bisz
- Department of Chemistry Opole University 48 Oleska Street 45-052 Opole Poland
| | - Michal Szostak
- Department of Chemistry Rutgers University 73 Warren Street Newark NJ 07102 USA
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3
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Shaughnessy KH. Monodentate Trialkylphosphines: Privileged Ligands in Metal-catalyzed Crosscoupling Reactions. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824666200211114540] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Phosphines are widely used ligands in transition metal-catalyzed reactions.
Arylphosphines, such as triphenylphosphine, were among the first phosphines to show
broad utility in catalysis. Beginning in the late 1990s, sterically demanding and electronrich
trialkylphosphines began to receive attention as supporting ligands. These ligands
were found to be particularly effective at promoting oxidative addition in cross-coupling
of aryl halides. With electron-rich, sterically demanding ligands, such as tri-tertbutylphosphine,
coupling of aryl bromides could be achieved at room temperature. More
importantly, the less reactive, but more broadly available, aryl chlorides became accessible
substrates. Tri-tert-butylphosphine has become a privileged ligand that has found application
in a wide range of late transition-metal catalyzed coupling reactions. This success
has led to the use of numerous monodentate trialkylphosphines in cross-coupling reactions. This review
will discuss the general properties and features of monodentate trialkylphosphines and their application in
cross-coupling reactions of C–X and C–H bonds.
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Affiliation(s)
- Kevin H. Shaughnessy
- Department of Chemistry & Biochemistry, The University of Alabama, Box 870336, Tuscaloosa, AL, 35487-0336, United States
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4
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5
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Piontek A, Ochędzan‐Siodłak W, Bisz E, Szostak M. Nickel‐Catalyzed C(
sp
2
)−C(
sp
3
) Kumada Cross‐Coupling of Aryl Tosylates with Alkyl Grignard Reagents. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801586] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Aleksandra Piontek
- Department of Chemistry Opole University 48 Oleska Street Opole 45-052 Poland
| | | | - Elwira Bisz
- Department of Chemistry Opole University 48 Oleska Street Opole 45-052 Poland
| | - Michal Szostak
- College of Chemistry and Chemical Engineering and Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education Shaanxi University of Science and Technology Xi'an 710021 China
- Department of Chemistry Opole University 48 Oleska Street Opole 45-052 Poland
- Department of Chemistry Rutgers University 73 Warren Street Newark NJ 07102 United States
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6
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Magnetically Recyclable Nano Nickel Ferrite Catalyzed One-pot Chalcogenation of Bioactive Heterocycles Under Aerobic Condition. ChemistrySelect 2019. [DOI: 10.1002/slct.201804039] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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7
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Ren C, Zeng J, Zou G. Nickel-catalyzed cross-coupling of O,N-chelated diarylborinates with aryl chlorides and mesylates. NEW J CHEM 2019. [DOI: 10.1039/c8nj05503c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Practical nickel catalysis for efficient cross-coupling of O,N-chelated diarylborinates with aryl chlorides and mesylates based on air-stable yet readily activated organonickel precursor, trans-NiCl(Ph)(PPh3)2, and sterically unsymmetrical N-heterocyclic carbene in situ generated from imidazolium precursor with trihydrate potassium phosphate in toluene.
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Affiliation(s)
- Chao Ren
- School of Chemistry & Molecular Engineering
- East China University of Science & Technology
- 130 Meilong Rd
- Shanghai
- China
| | - Jingshu Zeng
- School of Chemistry & Molecular Engineering
- East China University of Science & Technology
- 130 Meilong Rd
- Shanghai
- China
| | - Gang Zou
- School of Chemistry & Molecular Engineering
- East China University of Science & Technology
- 130 Meilong Rd
- Shanghai
- China
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8
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Hooker LV, Neufeldt SR. Ligation state of nickel during C-O bond activation with monodentate phosphines. Tetrahedron 2018; 74:6717-6725. [PMID: 31105349 PMCID: PMC6516790 DOI: 10.1016/j.tet.2018.10.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The oxidative addition of phenolic electrophiles at Ni(0) in the presence of monodentate phosphine ligands was studied with both dispersion-free and dispersion-containing DFT methods. With the popular bulky ligand PCy3, consideration of dispersion has a striking effect on the predicted ligation state of nickel during oxidative addition of aryl sulfamates. Dispersioncontaining methods such as M06L indicate a clear preference for a bis-phosphine ligated transition state (TS), while dispersion free methods like B3LYP strongly favor a monophosphine ligated TS. This discrepancy in predicted ligation state is also found with small phosphines (PMe3) in combination with some aryl electrophiles (carbamates, acetates, pivalates, chlorides), but a bis-PMe3-ligated TS is predicted regardless of dispersion for other electrophiles (sulfamates, mesylates, tosylates). DFT calculations that include dispersion also offer a possible explanation for the observed poor efficacy of P t Bu3 as a ligand in Ni-catalyzed cross-coupling reactions.
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Affiliation(s)
- Leidy V. Hooker
- Department of Chemistry and Biochemistry, Montana State University, 103 Chemistry & Biochemistry Bldg., Bozeman, MT 59717, USA
| | - Sharon R. Neufeldt
- Department of Chemistry and Biochemistry, Montana State University, 103 Chemistry & Biochemistry Bldg., Bozeman, MT 59717, USA
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9
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Beromi MM, Banerjee G, Brudvig GW, Charboneau DJ, Hazari N, Lant HMC, Mercado BQ. Modifications to the Aryl Group of dppf-Ligated Ni σ‑Aryl Precatalysts: Impact on Speciation and Catalytic Activity in Suzuki-Miyaura Coupling Reactions. Organometallics 2018; 37:3943-3955. [PMID: 31736532 DOI: 10.1021/acs.organomet.8b00589] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
There is currently significant interest in the development of efficient nickel precatalysts for cross-coupling. In this work, 14 nickel(II) precatalysts of the form (dppf)Ni(aryl)(X) (dppf = 1,1'-bis(diphenylphosphino)-ferrocene, X = Cl, Br) were synthesized. In particular, both the electronic and steric properties of the aryl group were modified to understand how this affects precatalyst activation. Using EPR spectroscopy, it was demonstrated that the amount of off-cycle nickel(I) species which are formed via comproportionation during precatalyst activation varies depending on the nature of the aryl group. For example, sterically bulky aryl groups reduce comproportionation. Additionally, the catalytic activity of the family of precatalysts was evaluated in five different Suzuki-Miyaura coupling reactions. The results from these catalytic studies provide information about how precatalyst structure affects catalytic efficiency, which may be useful for the rational design of improved nickel precatalysts for cross-coupling.
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Affiliation(s)
- Megan Mohadjer Beromi
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Gourab Banerjee
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Gary W Brudvig
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - David J Charboneau
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Nilay Hazari
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Hannah M C Lant
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Brandon Q Mercado
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
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10
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Jung JW, Kim NJ, Yun H, Han YT. Recent Advances in Synthesis of 4-Arylcoumarins. Molecules 2018; 23:molecules23102417. [PMID: 30241375 PMCID: PMC6222890 DOI: 10.3390/molecules23102417] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 09/13/2018] [Accepted: 09/20/2018] [Indexed: 12/12/2022] Open
Abstract
4-Arylcoumarins (4-aryl-2H-1-benzopyran-2-one), also known as neoflavones, comprise a minor subclass of naturally occurring flavonoids. Because of their broad-spectrum biological activities, arylcoumarins have been attracting the attention of the organic and medicinal chemistry communities, and are considered as an important privileged scaffold. Since the development of Pechmann condensation, a classical acid-catalyzed condensation between phenol and β-keto-carboxylic acid, several versatile and efficient synthetic approaches for 4-arylcoumarins have been reported. This review summarizes recent advances in the synthesis of the 4-arylcoumarin scaffold by classifying them based on the final bond-formation type. In particular, synthetic methods executed under mild and highly efficient conditions, such as solvent-free reactions and transition metal catalysis, are highlighted.
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Affiliation(s)
- Jong-Wha Jung
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Korea.
| | - Nam-Jung Kim
- College of Pharmacy, Kyung Hee University, Seoul 02453, Korea.
| | - Hwayoung Yun
- College of Pharmacy, Pusan National University, Busan 46241, Korea.
| | - Young Taek Han
- College of Pharmacy, Dankook University, Cheonan 31116, Korea.
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11
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Dong J, Guo H, Hu Q. Room Temperature Ni
0
/PCy
3
‐Catalyzed Coupling Reactions of Aryl Arenesulfonates with Bis(pinacolato)diboron. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701300] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jie Dong
- Department of Chemistry College of Staten Island of the City University of New York 10314 Staten Island New York USA
- The Ph.D. Program in Chemistry The Graduate Center of the City University of New York 10016 New York NY USA
| | - Hui Guo
- Department of Chemistry College of Staten Island of the City University of New York 10314 Staten Island New York USA
- The Ph.D. Program in Chemistry The Graduate Center of the City University of New York 10016 New York NY USA
| | - Qiao‐Sheng Hu
- Department of Chemistry College of Staten Island of the City University of New York 10314 Staten Island New York USA
- The Ph.D. Program in Chemistry The Graduate Center of the City University of New York 10016 New York NY USA
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12
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Zhang P, Guo Y, Quan ZJ. C-O and C-S coupling reaction of 1,2-di(pyrimidin-2-yl) disulfides with phenols/thiophenols promoted by copper(I) chloride. HETEROATOM CHEMISTRY 2017. [DOI: 10.1002/hc.21397] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ping Zhang
- School of Resource and Environmental Science; Key Laboratory of Western China's Environmental Systems; Lanzhou University; Lanzhou China
| | - Yan Guo
- College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou Gansu China
| | - Zheng-Jun Quan
- College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou Gansu China
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13
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Beromi MM, Nova A, Balcells D, Brasacchio AM, Brudvig GW, Guard LM, Hazari N, Vinyard DJ. Mechanistic Study of an Improved Ni Precatalyst for Suzuki-Miyaura Reactions of Aryl Sulfamates: Understanding the Role of Ni(I) Species. J Am Chem Soc 2017; 139:922-936. [PMID: 28009513 PMCID: PMC5360380 DOI: 10.1021/jacs.6b11412] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Nickel precatalysts are potentially a more sustainable alternative to traditional palladium precatalysts for the Suzuki-Miyaura coupling reaction. Currently, there is significant interest in Suzuki-Miyaura coupling reactions involving readily accessible phenolic derivatives such as aryl sulfamates, as the sulfamate moiety can act as a directing group for the prefunctionalization of the aromatic backbone of the electrophile prior to cross-coupling. By evaluating complexes in the Ni(0), (I), and (II) oxidation states we report a precatalyst, (dppf)Ni(o-tolyl)(Cl) (dppf = 1,1'-bis(diphenylphosphino)ferrocene), for Suzuki-Miyaura coupling reactions involving aryl sulfamates and boronic acids, which operates at a significantly lower catalyst loading and at milder reaction conditions than other reported systems. In some cases it can even function at room temperature. Mechanistic studies on precatalyst activation and the speciation of nickel during catalysis reveal that Ni(I) species are formed in the catalytic reaction via two different pathways: (i) the precatalyst (dppf)Ni(o-tolyl)(Cl) undergoes comproportionation with the active Ni(0) species; and (ii) the catalytic intermediate (dppf)Ni(Ar)(sulfamate) (Ar = aryl) undergoes comproportionation with the active Ni(0) species. In both cases the formation of Ni(I) is detrimental to catalysis, which is proposed to proceed via a Ni(0)/Ni(II) cycle. DFT calculations are used to support experimental observations and provide insight about the elementary steps involved in reactions directly on the catalytic cycle, as well as off-cycle processes. Our mechanistic investigation provides guidelines for designing even more active nickel catalysts.
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Affiliation(s)
- Megan Mohadjer Beromi
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Ainara Nova
- Centre for Theoretical and Computational Chemistry (CTCC), Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, 0315, Oslo, Norway
| | - David Balcells
- Centre for Theoretical and Computational Chemistry (CTCC), Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, 0315, Oslo, Norway
| | - Ann M. Brasacchio
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Gary W. Brudvig
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Louise M. Guard
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Nilay Hazari
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - David J. Vinyard
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
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14
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Liu LL, Chen P, Sun Y, Wu Y, Chen S, Zhu J, Zhao Y. Mechanism of Nickel-Catalyzed Selective C-N Bond Activation in Suzuki-Miyaura Cross-Coupling of Amides: A Theoretical Investigation. J Org Chem 2016; 81:11686-11696. [PMID: 27809510 DOI: 10.1021/acs.joc.6b02093] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In textbooks, the low reactivity of amides is attributed to the strong resonance stability. However, Garg and co-workers recently reported the Ni-catalyzed activation of robust amide C-N bonds, leading to conversions of amides into esters, ketones, and other amides with high selectivity. Among them, the Ni-catalyzed Suzuki-Miyaura coupling (SMC) of N-benzyl-N-tert-butoxycarbonyl (N-Bn-N-Boc) amides with pinacolatoboronate (PhBpin) was performed in the presence of K3PO4 and water. Water significantly enhanced the reaction. With the aid of density functional theory (DFT) calculations, the present study explored the mechanism of the aforementioned SMC reaction as well as analyzed the weakening of amide C-N bond by N-functionalization. The most favorable pathway includes four basic steps: oxidative addition, protonation, transmetalation, and reductive elimination. Comparing the base- and water-free process, the transmetalation step with the help of K3PO4 and water is significantly more facile. Water efficiently protonates the basic N(Boc) (Bn) group to form a neutral HN(Boc) (Bn), which is easily removed. The transmetalation step is the rate-determining step with an energy barrier of 25.6 kcal/mol. Further, a DFT prediction was carried out to investigate the full catalytic cycle of a cyclic (amino) (aryl)carbene in the Ni-catalyzed SMC of amides, which provided clues for further design of catalysts.
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Affiliation(s)
- Liu Leo Liu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Key Laboratory for Chemical Biology of Fujian Province and ‡State Key Laboratory of Physical Chemistry of Solid Surfaces and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen, 361005 Fujian, China
| | - Peng Chen
- Department of Chemistry, College of Chemistry and Chemical Engineering, Key Laboratory for Chemical Biology of Fujian Province and ‡State Key Laboratory of Physical Chemistry of Solid Surfaces and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen, 361005 Fujian, China
| | - Ying Sun
- Department of Chemistry, College of Chemistry and Chemical Engineering, Key Laboratory for Chemical Biology of Fujian Province and ‡State Key Laboratory of Physical Chemistry of Solid Surfaces and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen, 361005 Fujian, China
| | - Yile Wu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Key Laboratory for Chemical Biology of Fujian Province and ‡State Key Laboratory of Physical Chemistry of Solid Surfaces and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen, 361005 Fujian, China
| | - Su Chen
- Department of Chemistry, College of Chemistry and Chemical Engineering, Key Laboratory for Chemical Biology of Fujian Province and ‡State Key Laboratory of Physical Chemistry of Solid Surfaces and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen, 361005 Fujian, China
| | - Jun Zhu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Key Laboratory for Chemical Biology of Fujian Province and ‡State Key Laboratory of Physical Chemistry of Solid Surfaces and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen, 361005 Fujian, China
| | - Yufen Zhao
- Department of Chemistry, College of Chemistry and Chemical Engineering, Key Laboratory for Chemical Biology of Fujian Province and ‡State Key Laboratory of Physical Chemistry of Solid Surfaces and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen, 361005 Fujian, China
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15
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Chen WB, Xing CH, Dong J, Hu QS. Electron-Poor, Fluoro-Containing Arylboronic Acids as Efficient Coupling Partners for Bis(1,5-cyclooctadiene)nickel(0)/Tricyclohexylphosphine-Catalyzed Cross-Coupling Reactions of Aryl Arenesulfonates. Adv Synth Catal 2016; 358:2072-2076. [PMID: 28751852 DOI: 10.1002/adsc.201600205] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The use of electron-poor, fluoro-containing arylboronic acids as general coupling partners for nickel(0) /tricyclohexylphosphine-catalyzed cross-coupling of aryl arenesulfonates is described. Electron-poor fluoro-containing arylboronic acids were found to react, faster than electron-rich/neutral arylboronic acids, with (4-methoxyphenyl)(4-methylbenzenesulfonato-κO)bis(tricyclohexylphosphine)nickel. Bis(1,5-cyclooctadiene)nickel(0)/tricyclohexylphosphine, (4-methoxyphenyl)(4-methylbenzenesulfonato-κO)bis(tricyclohexylpho sphine)nickel and bis(tricyclohexylphosphine)nickel (II) bromide were all found to be efficient catalysts/catalyst precursors.
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Affiliation(s)
- Wen-Bo Chen
- Department of Chemistry, College of Staten Island of the City University of New York, Staten Island, New York, 10314 and the Ph.D. Program in Chemistry, the Graduate Center of the City University of New York, New York, NY 10016, United States
| | - Chun-Hui Xing
- Department of Chemistry, College of Staten Island of the City University of New York, Staten Island, New York, 10314 and the Ph.D. Program in Chemistry, the Graduate Center of the City University of New York, New York, NY 10016, United States
| | - Jie Dong
- Department of Chemistry, College of Staten Island of the City University of New York, Staten Island, New York, 10314 and the Ph.D. Program in Chemistry, the Graduate Center of the City University of New York, New York, NY 10016, United States
| | - Qiao-Sheng Hu
- Department of Chemistry, College of Staten Island of the City University of New York, Staten Island, New York, 10314 and the Ph.D. Program in Chemistry, the Graduate Center of the City University of New York, New York, NY 10016, United States
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16
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Mastalir M, Stöger B, Pittenauer E, Allmaier G, Kirchner K. Air-Stable Triazine-Based Ni(II) PNP Pincer Complexes As Catalysts for the Suzuki-Miyaura Cross-Coupling. Org Lett 2016; 18:3186-9. [PMID: 27281438 DOI: 10.1021/acs.orglett.6b01398] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Air-stable, thermally robust, and well-defined cationic Ni(II) PNP pincer complexes based on the 2,4-diaminotriazine scaffold are described. These complexes are active catalysts for the Suzuki-Miyaura cross-coupling of a wide range of aryl, heteroaryl (including benzoxazole, thiazole, pyridine, pyrimidine, thiazole), primary and secondary alkyl halides, and pseudohalides with different organoboronate reagents giving excellent to good isolated yields. Neutral deprotonated complexes seem to play a key role in the catalytic process.
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Affiliation(s)
- Matthias Mastalir
- Institute of Applied Synthetic Chemistry, Vienna University of Technology , Getreidemarkt 9/163-AC, A-1060 Wien, Austria
| | - Berthold Stöger
- Institute of Chemical Technologies and Analytics, Vienna University of Technology , Getreidemarkt 9/163-AC, A-1060 Wien, Austria
| | - Ernst Pittenauer
- Institute of Chemical Technologies and Analytics, Vienna University of Technology , Getreidemarkt 9/163-AC, A-1060 Wien, Austria
| | - Günter Allmaier
- Institute of Chemical Technologies and Analytics, Vienna University of Technology , Getreidemarkt 9/163-AC, A-1060 Wien, Austria
| | - Karl Kirchner
- Institute of Applied Synthetic Chemistry, Vienna University of Technology , Getreidemarkt 9/163-AC, A-1060 Wien, Austria
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17
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Halli J, Kramer P, Bechthold M, Manolikakes G. Nickel-Catalyzed Synthesis of Enamides and EnecarbamatesviaIsomerization of Allylamides and Allylcarbamates. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500461] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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18
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Ren S, Zhang J, Zhang J, Wang H, Zhang W, Liu Y, Liu M. Copper/Selectfluor-System-Catalyzed Dehydration-Oxidation of Tertiary Cycloalcohols: Access to β-Substituted Cyclohex-2-enones, 4-Arylcoumarins, and Biaryls. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500610] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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Wang S, Ren F, Qiu Y, Luo M. Synthesis and catalytic activity of nickel(II) complexes of CNC pincer-type N-heterocyclic carbene ligands. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.04.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Yu B, Sun H, Xie Z, Zhang G, Xu LW, Zhang W, Gao Z. Privilege Ynone Synthesis via Palladium-Catalyzed Alkynylation of “Super-Active Esters”. Org Lett 2015; 17:3298-301. [DOI: 10.1021/acs.orglett.5b01466] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bo Yu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, 199 South Chang’an Road, Xi’an 710119, China
| | - Huaming Sun
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, 199 South Chang’an Road, Xi’an 710119, China
| | - Zunyuan Xie
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, 199 South Chang’an Road, Xi’an 710119, China
| | - Guofang Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, 199 South Chang’an Road, Xi’an 710119, China
| | - Li-Wen Xu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, 199 South Chang’an Road, Xi’an 710119, China
| | - Weiqiang Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, 199 South Chang’an Road, Xi’an 710119, China
| | - Ziwei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, 199 South Chang’an Road, Xi’an 710119, China
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21
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Iranpoor N, Panahi F, Jamedi F. Nickel-catalyzed one-pot synthesis of biaryls from phenols and arylboronic acids via C–O activation using TCT reagent. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.01.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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22
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Yang QL, Quan ZJ, Du BX, Wu S, Zhang YP, Li PD, Wang MM, Lei ZQ, Wang XC. C–C/C–N cross-coupling reactions of aryl sulfonates catalyzed by an eco-friendly and reusable heterogeneous catalyst: wool–Pd complex. RSC Adv 2015. [DOI: 10.1039/c5ra09765g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A well-defined heterogeneous palladium catalyst, supported on wool fibre, was found to be an effective catalyst for the C–C/C–N coupling of pyrimidin-2-yl sulfonates with arylboronic acids, terminal alkynes or anilines in good to high yields.
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Affiliation(s)
- Quan-Lu Yang
- Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education
- Key Laboratory of Polymer Materials
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Zheng-Jun Quan
- Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education
- Key Laboratory of Polymer Materials
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Bao-Xin Du
- Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education
- Key Laboratory of Polymer Materials
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Shang Wu
- Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education
- Key Laboratory of Polymer Materials
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Yin-Pan Zhang
- College of Chemistry and Chemical Engineering
- Lanzhou University of Arts and Science
- Lanzhou
- P. R. China
| | - Pei-Dong Li
- College of Chemistry and Chemical Engineering
- Lanzhou University of Arts and Science
- Lanzhou
- P. R. China
| | - Ming-Ming Wang
- College of Chemistry and Chemical Engineering
- Lanzhou University of Arts and Science
- Lanzhou
- P. R. China
| | - Zi-Qiang Lei
- Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education
- Key Laboratory of Polymer Materials
- College of Chemistry and Chemical Engineering
- Northwest Normal University
| | - Xi-Cun Wang
- Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education
- Key Laboratory of Polymer Materials
- College of Chemistry and Chemical Engineering
- Northwest Normal University
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23
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Iranpoor N, Panahi F. Nickel-Catalyzed One-Pot Deoxygenation and Reductive Homocoupling of Phenols via C–O Activation Using TCT Reagent. Org Lett 2014; 17:214-7. [DOI: 10.1021/ol503560e] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Nasser Iranpoor
- Department
of Chemistry, College of Sciences, Shiraz University, Shiraz 71454, Iran
| | - Farhad Panahi
- Department
of Chemistry, College of Sciences, Shiraz University, Shiraz 71454, Iran
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24
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Jezorek RL, Zhang N, Leowanawat P, Bunner MH, Gutsche N, Pesti AKR, Olsen JT, Percec V. Air-Stable Nickel Precatalysts for Fast and Quantitative Cross-Coupling of Aryl Sulfamates with Aryl Neopentylglycolboronates at Room Temperature. Org Lett 2014; 16:6326-9. [DOI: 10.1021/ol503061c] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ryan L. Jezorek
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Na Zhang
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Pawaret Leowanawat
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Matthew H. Bunner
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Nicholas Gutsche
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Aleksander K. R. Pesti
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - James T. Olsen
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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25
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Khaddour Z, Akrawi OA, Suleiman AS, Patonay T, Villinger A, Langer P. Regioselective Suzuki–Miyaura cross-coupling reactions of the bis(triflate) of 4,7-dihydroxycoumarin. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.01.148] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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Ke H, Chen X, Zou G. N-heterocyclic carbene-assisted, bis(phosphine)nickel-catalyzed cross-couplings of diarylborinic acids with aryl chlorides, tosylates, and sulfamates. J Org Chem 2014; 79:7132-40. [PMID: 25025343 DOI: 10.1021/jo501291y] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Efficient bis(phosphine)nickel-catalyzed cross-couplings of diarylborinic acids with aryl chlorides, tosylates, and sulfamates have been effected with an assistance of N-heterocyclic carbene (NHC) generated in situ from N,N'-dialkylimidazoliums, e.g., N-butyl-N'-methylimidazolium bromide ([Bmim]Br), in toluene using K3PO4·3H2O as base. In contrast to bis(NHC)nickel-catalyzed conventional Suzuki coupling of arylboronic acids, mono(NHC)bis(phosphine)nickel species generated in situ from Ni(PPh3)2Cl2/[Bmim]Br displayed high catalytic activities in the cross-couplings of diarylborinic acids. The structural influences from diarylborinic acids were found to be rather small, while electronic factors from aryl chlorides, tosylates, and sulfamates affected the couplings remarkably. The couplings of electronically activated aryl chlorides, tosylates, and sulfamates could be efficiently effected with 1.5 mol % NiCl2(PPh3)2/[Bmim]Br as catalyst precursor to give the biaryl products in excellent yields, while 3-5 mol % loadings had to be used for the couplings of non- and deactivated ones. A small ortho-substitutent on the aromatic ring of aryl chlorides, tosylates, and sulfamates was tolerable. Applicability of the nickel-catalyzed cross-couplings in practical synthesis of fine chemicals has been demonstrated in process development for a third-generation topical retinoid, Adapalene.
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Affiliation(s)
- Haihua Ke
- Department of Fine Chemicals, East China University of Science & Technology , 130 Meilong Road, Shanghai 200237, China
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27
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Highly efficient nickel/phosphine catalyzed cross-couplings of diarylborinic acids with aryl tosylates and sulfamates. Sci China Chem 2014. [DOI: 10.1007/s11426-014-5138-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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28
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Hu F, Lei X. A nickel precatalyst for efficient cross-coupling reactions of aryl tosylates with arylboronic acids: vital role of dppf. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.04.059] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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29
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Park NH, Teverovskiy G, Buchwald SL. Development of an air-stable nickel precatalyst for the amination of aryl chlorides, sulfamates, mesylates, and triflates. Org Lett 2014; 16:220-3. [PMID: 24283652 PMCID: PMC3926134 DOI: 10.1021/ol403209k] [Citation(s) in RCA: 173] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A new air-stable nickel precatalyst for C-N cross-coupling is reported. The developed catalyst system displays a greatly improved substrate scope for C-N bond formation to include both a wide range of aryl and heteroaryl electrophiles and aryl, heteroaryl, and alkylamines. The catalyst system is also compatible with a weak base, allowing the amination of substrates containing base-sensitive functional groups.
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Affiliation(s)
- Nathaniel H. Park
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Georgiy Teverovskiy
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Stephen L. Buchwald
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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30
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Chen X, Ke H, Zou G. Nickel-Catalyzed Cross-Coupling of Diarylborinic Acids with Aryl Chlorides. ACS Catal 2013. [DOI: 10.1021/cs4009946] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiaofeng Chen
- Department of Fine Chemicals, East China University of Science & Technology, 130 Meilong Rd., Shanghai, People’s Republic of China
| | - Haihua Ke
- Department of Fine Chemicals, East China University of Science & Technology, 130 Meilong Rd., Shanghai, People’s Republic of China
| | - Gang Zou
- Department of Fine Chemicals, East China University of Science & Technology, 130 Meilong Rd., Shanghai, People’s Republic of China
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31
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Han FS. Transition-metal-catalyzed Suzuki-Miyaura cross-coupling reactions: a remarkable advance from palladium to nickel catalysts. Chem Soc Rev 2013; 42:5270-98. [PMID: 23460083 DOI: 10.1039/c3cs35521g] [Citation(s) in RCA: 799] [Impact Index Per Article: 72.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In the transition-metal-catalyzed cross-coupling reactions, the use of the first row transition metals as catalysts is much more appealing than the precious metals owing to the apparent advantages such as cheapness and earth abundance. Within the last two decades, particularly the last five years, explosive interests have been focused on the nickel-catalyzed Suzuki-Miyaura reactions. This has greatly advanced the chemistry of transition-metal-catalyzed cross-coupling reactions. Most notably, a broad range of aryl electrophiles such as phenols, aryl ethers, esters, carbonates, carbamates, sulfamates, phosphates, phosphoramides, phosphonium salts, and fluorides, as well as various alkyl electrophiles, which are conventionally challenging, by applying palladium catalysts can now be coupled efficiently with boron reagents in the presence of nickel catalysts. In this review, we would like to summarize the progress in this reaction.
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Affiliation(s)
- Fu-She Han
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, P. R. China
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32
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Palladium-catalyzed domino protodecarboxylation/oxidative Heck reaction: regioselective arylation of coumarin-3-carboxylic acids. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.10.089] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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33
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Quan ZJ, Jing FQ, Zhang Z, Da YX, Wang XC. Palladium(II) Catalyzed Suzuki/Sonogashira Cross-Coupling Reactions of Sulfonates: An Efficient Approach to C2-Functionalized Pyrimidines and Pyridines. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300592] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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34
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Liu LL, Zhang S, Chen H, Lv Y, Zhu J, Zhao Y. Mechanistic insight into the nickel-catalyzed cross-coupling of aryl phosphates with arylboronic acids: potassium phosphate is not a spectator base but is involved in the transmetalation step in the Suzuki-Miyaura reaction. Chem Asian J 2013; 8:2592-5. [PMID: 23943143 DOI: 10.1002/asia.201300688] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Revised: 06/12/2013] [Indexed: 01/15/2023]
Affiliation(s)
- Liu Leo Liu
- Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Department of Chemistry, Xiamen University, Xiamen, 361005 (China) http://chem.xmu.edu.cn/group/yfzhao/zhao-home.html
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35
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Regioselective Suzuki–Miyaura cross-coupling reactions of 4-methyl-6,7-bis(trifluoromethanesulfonyloxy)coumarin. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.04.123] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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36
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Lei X, Obregon KA, Alla J. Suzuki-Miyaura coupling reactions of aryl chlorides catalyzed by a new nickel(II) σ-aryl complex. Appl Organomet Chem 2013. [DOI: 10.1002/aoc.3000] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiangyang Lei
- Department of Chemistry and Biochemistry; Lamar University; Beaumont TX 77710 USA
| | - Karla A. Obregon
- Department of Chemistry and Biochemistry; Lamar University; Beaumont TX 77710 USA
| | - Jhansi Alla
- Department of Chemistry and Biochemistry; Lamar University; Beaumont TX 77710 USA
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37
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Li J, Chen H, Zhang-Negrerie D, Du Y, Zhao K. Synthesis of coumarins via PIDA/I2-mediated oxidative cyclization of substituted phenylacrylic acids. RSC Adv 2013. [DOI: 10.1039/c3ra23188g] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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38
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Wang ZY, Chen GQ, Shao LX. N-heterocyclic carbene-palladium(II)-1-methylimidazole complex-catalyzed Suzuki-Miyaura coupling of aryl sulfonates with arylboronic acids. J Org Chem 2012; 77:6608-14. [PMID: 22804630 DOI: 10.1021/jo301270t] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A well-defined NHC-Pd(II)-Im complex 1 was found to be an effective catalyst for the Suzuki-Miyaura coupling of aryl sulfonates including tosylates and phenylsulfonates with arylboronic acids, giving the desired coupling products in good to high yields. Acceptable yields can also be achieved even by using the less reactive mesylates as the substrates. It is worthy of noting here that this is the first example of NHC-Pd(II) complex-catalyzed Suzuki-Miyaura coupling of aryl sulfonates with arylboronic acids, enriching an inexpensive, convenient, and alternative method for the synthesis of biaryl compounds.
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Affiliation(s)
- Zhan-Yong Wang
- College of Chemistry and Materials Engineering, Wenzhou University, Chashan University Town, Wenzhou, Zhejiang Province 325035, People's Republic of China
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39
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Zhang N, Hoffman DJ, Gutsche N, Gupta J, Percec V. Comparison of Arylboron-Based Nucleophiles in Ni-Catalyzed Suzuki–Miyaura Cross-Coupling with Aryl Mesylates and Sulfamates. J Org Chem 2012; 77:5956-64. [DOI: 10.1021/jo300547v] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Na Zhang
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - David J. Hoffman
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Nicholas Gutsche
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Jayesh Gupta
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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40
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Cívicos JF, Alonso DA, Nájera C. Oxime-Palladacycle-Catalyzed Suzuki-Miyaura Arylation and Alkenylation of Aryl Imidazolesulfonates under Aqueous and Phosphane-Free Conditions. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200368] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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41
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Leowanawat P, Zhang N, Safi M, Hoffman DJ, Fryberger MC, George A, Percec V. trans-Chloro(1-Naphthyl)bis(triphenylphosphine)nickel(II)/PCy3 Catalyzed Cross-Coupling of Aryl and Heteroaryl Neopentylglycolboronates with Aryl and Heteroaryl Mesylates and Sulfamates at Room Temperature. J Org Chem 2012; 77:2885-92. [DOI: 10.1021/jo3001194] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pawaret Leowanawat
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Na Zhang
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Mehtap Safi
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - David J. Hoffman
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Miriam C. Fryberger
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Aiswaria George
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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42
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Li Y, Qi Z, Wang H, Fu X, Duan C. Palladium-catalyzed oxidative Heck coupling reaction for direct synthesis of 4-arylcoumarins using coumarins and arylboronic acids. J Org Chem 2012; 77:2053-7. [PMID: 22248005 DOI: 10.1021/jo202577m] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient protocol for the direct synthesis of 4-arylcoumarins via palladium-catalyzed oxidative Heck coupling reaction of coumarins and arylboronic acids was developed. 4-Arylcoumarins were obtained in moderate to excellent yields, and the reaction also showed tolerance toward functional groups such as hydro, methoxy, diethylamino, nitro, and chloro groups.
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Affiliation(s)
- Yaming Li
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China.
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43
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Khoobi M, Alipour M, Zarei S, Jafarpour F, Shafiee A. A facile route to flavone and neoflavone backbones via a regioselective palladium catalyzed oxidative Heck reaction. Chem Commun (Camb) 2012; 48:2985-7. [DOI: 10.1039/c2cc18150a] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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