1
|
Budiman YP, Putra MH, Ramadhan MR, Hannifah R, Luz C, Ghafara IZ, Rustaman R, Ernawati EE, Mayanti T, Groß A, Radius U, Marder TB. Pd-Catalyzed Oxidative C-H Arylation of (Poly)fluoroarenes with Aryl Pinacol Boronates and Experimental and Theoretical Studies of its Reaction Mechanism. Chem Asian J 2024; 19:e202400094. [PMID: 38412058 DOI: 10.1002/asia.202400094] [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: 01/28/2024] [Revised: 02/27/2024] [Accepted: 02/27/2024] [Indexed: 02/29/2024]
Abstract
We report the synergistic combination of Pd(OAc)2 and Ag2O for the oxidative C-H arylation of (poly)fluoroarenes with aryl pinacol boronates (Ar-Bpin) in DMF as the solvent. This procedure can be conducted easily in air, and without using additional ligands, to afford the fluorinated unsymmetrical biaryl products in up to 98 % yield. Experimental studies suggest that the formation of [PdL2(C6F5)2] in DMF as coordinating solvent does not take place under the reaction conditions as it is stable to reductive elimination and thus would deactivate the catalyst. Thus, the intermediate [Pd(DMF)2(ArF)(Ar)] must be formed selectively to give desired arylation products. DFT calculations predict a low barrier (5.87 kcal/mol) for the concerted metalation deprotonation (CMD) process between C6F5H and the Pd(II) species formed after transmetalation between the Pd(II)X2 complex and aryl-Bpin which forms a Pd-Arrich species. Thus a Pd(Arrich)(Arpoor) complex is generated selectively which undergoes reductive elimination to generate the unsymmetrical biaryl product.
Collapse
Affiliation(s)
- Yudha P Budiman
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, 45363, Sumedang, Indonesia
| | | | - Muhammad R Ramadhan
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, 45363, Sumedang, Indonesia
| | - Raiza Hannifah
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, 45363, Sumedang, Indonesia
| | - Christian Luz
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Ilham Z Ghafara
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, 45363, Sumedang, Indonesia
| | - Rustaman Rustaman
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, 45363, Sumedang, Indonesia
| | - Engela E Ernawati
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, 45363, Sumedang, Indonesia
| | - Tri Mayanti
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, 45363, Sumedang, Indonesia
| | - Axel Groß
- Institute of Theoretical Chemistry, Ulm University, 89081, Ulm, Germany
- Helmholtz Institute Ulm (HIU), Electrochemical Energy Storage, 89069, Ulm, Germany
| | - Udo Radius
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Todd B Marder
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| |
Collapse
|
2
|
Greener Approach for Pd–NPs Synthesis Using Mangifera Indica Leaf Extract: Heterogeneous Nano Catalyst for Direct C–H Arylation of (Poly)Fluorobenzene, Hiyama Coupling Reaction and Hydrogen Evolution Reaction Study. Catal Letters 2022. [DOI: 10.1007/s10562-022-04138-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
|
3
|
Ellaby RJ, Chu DF, Pépés A, Clark ER, Hiscock J. Predicting the hydrolytic breakdown rates of organophosphorus chemical warfare agent simulants using association constants derived from hydrogen bonded complex formation events. Supramol Chem 2021. [DOI: 10.1080/10610278.2021.1999450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Rebecca J. Ellaby
- School of Physical Sciences, University of Kent, Canterbury, Kent, UK
| | | | - Antigoni Pépés
- School of Physical Sciences, University of Kent, Canterbury, Kent, UK
| | - Ewan R. Clark
- School of Physical Sciences, University of Kent, Canterbury, Kent, UK
| | - Jennifer Hiscock
- School of Physical Sciences, University of Kent, Canterbury, Kent, UK
| |
Collapse
|
4
|
Albano G, Decandia G, Capozzi MAM, Zappimbulso N, Punzi A, Farinola GM. Infrared Irradiation-Assisted Solvent-Free Pd-Catalyzed (Hetero)aryl-aryl Coupling via C-H Bond Activation. CHEMSUSCHEM 2021; 14:3391-3401. [PMID: 34224202 PMCID: PMC8456959 DOI: 10.1002/cssc.202101070] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/28/2021] [Indexed: 05/18/2023]
Abstract
The increasing attention towards environmentally friendly synthetic protocols has boosted studies directed to the development of green and sustainable methods for direct C-H bond arylation of (hetero)arenes. In this context, here the infrared (IR) irradiation-assisted solvent-free Pd-catalyzed direct C-H bond arylation of (hetero)arenes was achieved. Several heteroaryl-aryl coupling reactions were described, also involving heterocycles commonly used as building blocks for the synthesis of organic semiconductors. The reaction tolerated many functional groups on the aromatic nuclei. The IR-irradiation as the energy source compared favorably with thermal heating and, in combination with solvent-free conditions, provided an important contribution to the development of protocols fitting with the principles of green chemistry.
Collapse
Affiliation(s)
- Gianluigi Albano
- Dipartimento di ChimicaUniversità degli Studi di Bari Aldo Moro via Orabona, 4-70125BariItaly
| | - Gianfranco Decandia
- Dipartimento di ChimicaUniversità degli Studi di Bari Aldo Moro via Orabona, 4-70125BariItaly
- Istituto per i Processi Chimico-Fisici CNR-IPCFDipartimento di Chimicavia Orabona 470125BariItaly
| | | | - Nicola Zappimbulso
- Dipartimento di ChimicaUniversità degli Studi di Bari Aldo Moro via Orabona, 4-70125BariItaly
| | - Angela Punzi
- Dipartimento di ChimicaUniversità degli Studi di Bari Aldo Moro via Orabona, 4-70125BariItaly
| | - Gianluca M. Farinola
- Dipartimento di ChimicaUniversità degli Studi di Bari Aldo Moro via Orabona, 4-70125BariItaly
| |
Collapse
|
5
|
|
6
|
Ellaby RJ, Clark ER, Allen N, Taylor FR, Ng KKL, Dimitrovski M, Chu DF, Mulvihill DP, Hiscock JR. Identification of organophosphorus simulants for the development of next-generation detection technologies. Org Biomol Chem 2021; 19:2008-2014. [PMID: 33586753 DOI: 10.1039/d0ob02523b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Organophosphorus (OP) chemical warfare agents (CWAs) represent an ongoing threat but the understandable widespread prohibition of their use places limitations on the development of technologies to counter the effects of any OP CWA release. Herein, we describe new, accessible methods for the identification of appropriate molecular simulants to mimic the hydrogen bond accepting capacity of the P[double bond, length as m-dash]O moiety, common to every member of this class of CWAs. Using the predictive methodologies developed herein, we have identified OP CWA hydrogen bond acceptor simulants for soman and sarin. It is hoped that the effective use of these physical property specific simulants will aid future countermeasure developments.
Collapse
Affiliation(s)
- Rebecca J Ellaby
- School of Physical Sciences, University of Kent, Park Wood Road, Canterbury, Kent CT2 7NH, UK.
| | - Ewan R Clark
- School of Physical Sciences, University of Kent, Park Wood Road, Canterbury, Kent CT2 7NH, UK.
| | - Nyasha Allen
- School of Biosciences, University of Kent, Park Wood Road, Canterbury, Kent CT2 7NH, UK
| | - Faith R Taylor
- School of Physical Sciences, University of Kent, Park Wood Road, Canterbury, Kent CT2 7NH, UK.
| | - Kendrick K L Ng
- School of Physical Sciences, University of Kent, Park Wood Road, Canterbury, Kent CT2 7NH, UK.
| | - Milan Dimitrovski
- School of Physical Sciences, University of Kent, Park Wood Road, Canterbury, Kent CT2 7NH, UK.
| | - Dominique F Chu
- School of Computing, University of Kent, Darwin Road, Canterbury, Kent CT2 7NZ, UK
| | - Daniel P Mulvihill
- School of Biosciences, University of Kent, Park Wood Road, Canterbury, Kent CT2 7NH, UK
| | - Jennifer R Hiscock
- School of Physical Sciences, University of Kent, Park Wood Road, Canterbury, Kent CT2 7NH, UK.
| |
Collapse
|
7
|
Moseev TD, Varaksin MV, Gorlov DA, Charushin VN, Chupakhin ON. Recent advances in the functionalization of polyfluoro(aza)aromatics via C-C coupling strategies. Org Biomol Chem 2021; 19:4429-4459. [PMID: 33908555 DOI: 10.1039/d1ob00472g] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polyfluoro(aza)aromatic compounds are of interest in various fields of practical applications, such as medicinal and agrochemistry, materials science and advanced technologies. The C-C coupling reactions are known to be a promising synthetic tool to create challenging fluorinated molecules of diverse architectures. In this review, we have summarized the recent advances in the functionalization of polyfluoro(aza)aromatics via both transition metal-catalyzed and metal-free C-C coupling reactions for the period from 2006 to the beginning of 2021. Also, mechanistic features for chemical transformations of fluoroarene scaffolds and new opportunities for practical applications of the designed fluorinated molecules have been highlighted.
Collapse
Affiliation(s)
- Timofey D Moseev
- Ural Federal University, 19 Mira Str., 620002 Ekaterinburg, Russia.
| | - Mikhail V Varaksin
- Ural Federal University, 19 Mira Str., 620002 Ekaterinburg, Russia. and Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskaya Str., 620990 Ekaterinburg, Russia.
| | - Denis A Gorlov
- Moscow State University, 1 Leninskie Gory, 119991 Moscow, Russia
| | - Valery N Charushin
- Ural Federal University, 19 Mira Str., 620002 Ekaterinburg, Russia. and Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskaya Str., 620990 Ekaterinburg, Russia.
| | - Oleg N Chupakhin
- Ural Federal University, 19 Mira Str., 620002 Ekaterinburg, Russia. and Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskaya Str., 620990 Ekaterinburg, Russia.
| |
Collapse
|
8
|
Zhou T, Szostak M. Palladium-Catalyzed Cross-Couplings by C-O Bond Activation. Catal Sci Technol 2020; 10:5702-5739. [PMID: 33796263 PMCID: PMC8009314 DOI: 10.1039/d0cy01159b] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Although palladium-catalyzed cross-coupling of aryl halides and reactive pseudohalides has revolutionized the way organic molecules are constructed today across various fields of chemistry, comparatively less progress has been made in the palladium-catalyzed cross-coupling of less reactive C-O electrophiles. This is despite the fact that the use of phenols and phenol derivatives as bench-stable cross-coupling partners has been well-recognized to bring about major advantages over aryl halides, such as (1) natural abundance of phenols, (2) avoidance of toxic halides, (3) orthogonal cross-coupling conditions, (4) prefunctionalization of phenolic substrates by electrophilic substitution or C-H functionalization, (5) ready availability of phenols from a different pool of precursors than aryl halides. In this review, we present an overview of recent advances made in the field of palladium-catalyzed cross-coupling of C-O electrophiles with a focus on (1) catalytic systems, (2) reaction type, and (3) class of C-O coupling partners. Although the field has been historically dominated by nickel catalysis, it is now evident that the use of more versatile, more functional group tolerant and highly active palladium catalysts supported by appropriately designed ancillary ligands enables the cross-coupling with improved substrate scope and generality, and likely represents a practical solution to the broadly applicable cross-coupling of various C-O bonds across diverse chemical disciplines. The review covers the period through June 2020.
Collapse
Affiliation(s)
- Tongliang Zhou
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, NJ 07102, United States
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, NJ 07102, United States
| |
Collapse
|
9
|
Benhalouche ME, Li H, Miloudi A, Benzai A, Cordier M, Soulé JF, Doucet H. Regiodivergent Late-Stage Pd- or Ru-Catalyzed C-H Bond Functionalization Applied to the Straightforward Synthesis of N
-Methylated Diflufenican Derivatives. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000749] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Mohamed Elhadi Benhalouche
- Laboratoire de chimie fine; Département de chimie, Faculté des sciences exactes et appliquées; Université Oran 1; BP1524, El Mnaouer 31100 Oran Algeria
- CNRS, ISCR UMR 6226; Univ. Rennes; 35000 Rennes France
| | - Haoran Li
- CNRS, ISCR UMR 6226; Univ. Rennes; 35000 Rennes France
| | - Abdellah Miloudi
- Laboratoire de chimie fine; Département de chimie, Faculté des sciences exactes et appliquées; Université Oran 1; BP1524, El Mnaouer 31100 Oran Algeria
| | - Amal Benzai
- CNRS, ISCR UMR 6226; Univ. Rennes; 35000 Rennes France
- Laboratoire de Physique et Chimie des Matériaux (LPCM); UMMTO University; BP 17 RP 15000 Tizi-Ouzou Algeria
| | - Marie Cordier
- CNRS, ISCR UMR 6226; Univ. Rennes; 35000 Rennes France
| | | | - Henri Doucet
- CNRS, ISCR UMR 6226; Univ. Rennes; 35000 Rennes France
| |
Collapse
|
10
|
Mao S, Shi X, Soulé J, Doucet H. Pd/C as Heterogeneous Catalyst for the Direct Arylation of (Poly)fluorobenzenes. Chemistry 2019; 25:9504-9513. [DOI: 10.1002/chem.201900921] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Indexed: 01/25/2023]
Affiliation(s)
- Shuxin Mao
- Univ RennesCNRS, ISCR-UMR 6226 35000 Rennes France
| | - Xinzhe Shi
- Univ RennesCNRS, ISCR-UMR 6226 35000 Rennes France
| | | | - Henri Doucet
- Univ RennesCNRS, ISCR-UMR 6226 35000 Rennes France
| |
Collapse
|
11
|
Peshkov RY, Wang C, Panteleeva EV, Rybalova TV, Tretyakov EV. Radical Anions of Aromatic Carbonitriles as Reagents for Arylation of Fluorinated Benzonitriles. J Org Chem 2019; 84:963-972. [PMID: 30583695 DOI: 10.1021/acs.joc.8b02904] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The first example of phenylation of fluorobenzonitriles with the sodium salt of a benzonitrile radical anion in liquid ammonia is presented. The reaction regioselectivity corresponds to the ortho- and para-fluorine atom substitution in fluorobenzonitrile with the phenyl moiety of the benzonitrile radical anion and affords 2- and 4-cyanobiphenyls in 40-90% yields. 3-Methoxybenzonitrile as well as 1-cyanonaphthalene radical anions were also successfully subjected to this interaction forming 3'-methoxycyanobiphenyls and (1-naphthyl)benzonitriles, respectively. The radical anion acts as an ipso-C-nucleophile with consequent loss of the cyano group. The revealed new type of radical anion reactivity opens up the prospect of developing a general approach to fluorinated cyanobisarenes on the basis of an interaction of the cyanoarene radical anion with fluorinated substrates activated to aromatic nucleophilic substitution.
Collapse
Affiliation(s)
- Roman Yu Peshkov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry of Siberian Branch of Russian Academy of Sciences , 9 Ac. Lavrentiev Avenue , Novosibirsk 630090 , Russia.,Novosibirsk State University , 2 Pirogova Str. , Novosibirsk 630090 , Russia
| | - Chunyan Wang
- Novosibirsk State University , 2 Pirogova Str. , Novosibirsk 630090 , Russia.,Heilongjang University , Xuefu Road, 74 , Harbin 150080 , China
| | - Elena V Panteleeva
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry of Siberian Branch of Russian Academy of Sciences , 9 Ac. Lavrentiev Avenue , Novosibirsk 630090 , Russia.,Novosibirsk State University , 2 Pirogova Str. , Novosibirsk 630090 , Russia
| | - Tatyana V Rybalova
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry of Siberian Branch of Russian Academy of Sciences , 9 Ac. Lavrentiev Avenue , Novosibirsk 630090 , Russia.,Novosibirsk State University , 2 Pirogova Str. , Novosibirsk 630090 , Russia
| | - Evgeny V Tretyakov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry of Siberian Branch of Russian Academy of Sciences , 9 Ac. Lavrentiev Avenue , Novosibirsk 630090 , Russia.,Novosibirsk State University , 2 Pirogova Str. , Novosibirsk 630090 , Russia
| |
Collapse
|
12
|
Gan Y, Wang G, Xie X, Liu Y. Nickel-Catalyzed Cyanation of Phenol Derivatives with Zn(CN)2 Involving C–O Bond Cleavage. J Org Chem 2018; 83:14036-14048. [DOI: 10.1021/acs.joc.8b02498] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yi Gan
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Gaonan Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Xin Xie
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| |
Collapse
|
13
|
Yuen OY, Leung MP, So CM, Sun RWY, Kwong FY. Palladium-Catalyzed Direct Arylation of Polyfluoroarenes for Accessing Tetra- ortho-Substituted Biaryls: Buchwald-type Ligand Having Complementary -PPh 2 Moiety Exhibits Better Efficiency. J Org Chem 2018; 83:9008-9017. [PMID: 29882668 DOI: 10.1021/acs.joc.8b01176] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The first general examples of direct C-H arylation of electron-deficient polyfluoroarenes with challenging di- ortho-substituted aryl(heteroaryl) chlorides for tetra- ortho-substituted biaryl synthesis are reported. Key to success is the use of Buchwald-type biaryl phosphine ligand, notably with inexpensive -PPh2 moiety (instead of -PCy2 group). Pd(OAc)2 associated with ligand L9 exhibits even higher efficiency than the corresponding SPhos toward this reaction. A wide range of sterically hindered di- ortho-substituted chloroarenes bearing electron-donating or -withdrawing groups are found applicable. Excellent product yields are obtained under mild reaction conditions, and the catalyst loading down to 0.25 mol % of Pd can also be achieved.
Collapse
Affiliation(s)
- On Ying Yuen
- Department of Chemistry , The Chinese University of Hong Kong , Shatin, New Territories , Hong Kong.,Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom, Kowloon , Hong Kong
| | - Man Pan Leung
- Department of Chemistry , The Chinese University of Hong Kong , Shatin, New Territories , Hong Kong.,Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom, Kowloon , Hong Kong
| | - Chau Ming So
- Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom, Kowloon , Hong Kong
| | - Raymond Wai-Yin Sun
- Guangzhou Lee & Man Technology Company Limited , 8 Huanshi Avenue South , Nansha, Guangzhou , Guangdong Province , China
| | - Fuk Yee Kwong
- Department of Chemistry , The Chinese University of Hong Kong , Shatin, New Territories , Hong Kong.,Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom, Kowloon , Hong Kong
| |
Collapse
|
14
|
Shi X, Mao S, Soulé JF, Doucet H. Reactivity of 1,2,3- and 1,2,4-Trifluorobenzenes in Palladium-Catalyzed Direct Arylation. J Org Chem 2018. [DOI: 10.1021/acs.joc.8b00412] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xinzhe Shi
- Univ Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Shuxin Mao
- Univ Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | | | - Henri Doucet
- Univ Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| |
Collapse
|
15
|
Fang L, Xue L, Yang P, Li X, Wang Z. A Facile Route to 4-Polyfluoroarylquinolin-2(1H)-ones and 4-Polyfluoroarylcoumarins via C–H Bond Activation. CHEM LETT 2017. [DOI: 10.1246/cl.170466] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ling Fang
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, P. R. China
| | - Lijun Xue
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, P. R. China
| | - Peng Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, P. R. China
| | - Xiaodan Li
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, P. R. China
| | - Zhiyong Wang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, P. R. China
| |
Collapse
|
16
|
Boyaala R, Touzani R, Guerchais V, Soulé JF, Doucet H. Synthesis of 2-(fluorinated aryl)pyridine derivatives via palladium-catalyzed C H bond arylation of fluorobenzenes using 2-halopyridines as aryl sources. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.06.075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
17
|
Yi Z, Aschenaki Y, Daley R, Davick S, Schnaith A, Wander R, Kalyani D. Palladium Catalyzed Arylation and Benzylation of Nitroarenes Using Aryl Sulfonates and Benzyl Acetates. J Org Chem 2017; 82:6946-6957. [PMID: 28617611 DOI: 10.1021/acs.joc.7b00550] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Pd-catalyzed arylation or benzylation of nitroazoles using aryl sulfonates or benzyl acetates is described. Electronically varied aryl tosylates and mesylates, as well as benzyl acetates, afford the arylated and benzylated products. Arylation of nitrobenzene is also reported. The relative rate for the arylation of halides is greater than that of tosylates using the reported reaction parameters. These studies enhance the scope of electrophiles for nitroarene arylations and benzylations, which was hitherto limited to the use of halide electrophiles.
Collapse
Affiliation(s)
- Zubaoyi Yi
- St. Olaf College , 1520 St. Olaf Avenue, Northfield, Minnesota 55057, United States
| | - Yodit Aschenaki
- St. Olaf College , 1520 St. Olaf Avenue, Northfield, Minnesota 55057, United States
| | - Ryan Daley
- St. Olaf College , 1520 St. Olaf Avenue, Northfield, Minnesota 55057, United States
| | - Stephen Davick
- St. Olaf College , 1520 St. Olaf Avenue, Northfield, Minnesota 55057, United States
| | - Abigail Schnaith
- St. Olaf College , 1520 St. Olaf Avenue, Northfield, Minnesota 55057, United States
| | - Rylee Wander
- St. Olaf College , 1520 St. Olaf Avenue, Northfield, Minnesota 55057, United States
| | - Dipannita Kalyani
- St. Olaf College , 1520 St. Olaf Avenue, Northfield, Minnesota 55057, United States
| |
Collapse
|
18
|
Steinberg DF, Turk MC, Kalyani D. Nickel-Catalyzed C-H Arylation of Benzoxazoles and Oxazoles: Benchmarking the Influence of Electronic, Steric and Leaving Group Variations in Phenolic Electrophiles. Tetrahedron 2017; 73:2196-2209. [PMID: 29051675 PMCID: PMC5642964 DOI: 10.1016/j.tet.2017.02.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Deborah F. Steinberg
- Department of Chemistry, St. Olaf College, 1520 St. Olaf Avenue, Northfield, Minnesota 55057, USA
| | - Morgan C. Turk
- Department of Chemistry, St. Olaf College, 1520 St. Olaf Avenue, Northfield, Minnesota 55057, USA
| | - Dipannita Kalyani
- Department of Chemistry, St. Olaf College, 1520 St. Olaf Avenue, Northfield, Minnesota 55057, USA
| |
Collapse
|
19
|
Hfaiedh A, Ben Ammar H, Soulé JF, Doucet H. Palladium-catalyzed regioselective C–H bond arylations at the C3 position of ortho-substituted fluorobenzenes. Org Biomol Chem 2017; 15:7447-7455. [DOI: 10.1039/c7ob01689a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report herein the palladium-catalyzed C–H bond arylation of fluorobenzene derivatives at the ortho-position to the fluorine atom. Bromo, chloro or methoxy substituents at the fluorobenzenyl ortho-position can be used to increase the reactivity of the C–H bond at the C3 position.
Collapse
Affiliation(s)
- Anoir Hfaiedh
- UMR 6226 CNRS-Université de Rennes 1 “Organométalliques
- Matériaux et Catalyse”
- 35042 Rennes
- France
- Université de Tunis El Manar
| | - Hamed Ben Ammar
- Laboratoire de Synthèse Organique Asymétrique et Catalyse Homogène (UR 11ES56)
- Université de Monastir
- Faculté des Sciences de Monastir
- Monastir 5000
- Tunisia
| | - Jean-François Soulé
- UMR 6226 CNRS-Université de Rennes 1 “Organométalliques
- Matériaux et Catalyse”
- 35042 Rennes
- France
| | - Henri Doucet
- UMR 6226 CNRS-Université de Rennes 1 “Organométalliques
- Matériaux et Catalyse”
- 35042 Rennes
- France
| |
Collapse
|
20
|
Wang Y, Wu SB, Shi WJ, Shi ZJ. C–O/C–H Coupling of Polyfluoroarenes with Aryl Carbamates by Cooperative Ni/Cu Catalysis. Org Lett 2016; 18:2548-51. [DOI: 10.1021/acs.orglett.6b00819] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yang Wang
- Beijing
National Laboratory for Molecular Sciences (BNLMS) and Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Song-Bai Wu
- Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Wen-Juan Shi
- Beijing
National Laboratory for Molecular Sciences (BNLMS) and Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Zhang-Jie Shi
- Beijing
National Laboratory for Molecular Sciences (BNLMS) and Key Laboratory
of Bioorganic Chemistry and Molecular Engineering of Ministry of Education,
College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- State
Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| |
Collapse
|
21
|
Simonetti M, Perry GJP, Cambeiro XC, Juliá-Hernández F, Arokianathar JN, Larrosa I. Ru-Catalyzed C-H Arylation of Fluoroarenes with Aryl Halides. J Am Chem Soc 2016; 138:3596-606. [PMID: 26942551 PMCID: PMC4805314 DOI: 10.1021/jacs.6b01615] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
![]()
Although
the ruthenium-catalyzed C–H arylation of arenes
bearing directing groups with haloarenes is well-known, this process
has never been achieved in the absence of directing groups. We report
the first example of such a process and show that unexpectedly the
reaction only takes place in the presence of catalytic amounts of
a benzoic acid. Furthermore, contrary to other transition metals,
the arylation site selectivity is governed by both electronic and
steric factors. Stoichiometric and NMR mechanistic studies support
a catalytic cycle that involves a well-defined η6-arene-ligand-free Ru(II) catalyst. Indeed, upon initial pivalate-assisted
C–H activation, the aryl-Ru(II) intermediate generated is able
to react with an aryl bromide coupling partner only in the presence
of a benzoate additive. In contrast, directing-group-containing substrates
(such as 2-phenylpyridine) do not require a benzoate additive. Deuterium
labeling and kinetic isotope effect experiments indicate that C–H
activation is both reversible and kinetically significant. Computational
studies support a concerted metalation–deprotonation (CMD)-type
ruthenation mode and shed light on the unusual arylation regioselectivity.
Collapse
Affiliation(s)
- Marco Simonetti
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom.,School of Biological and Chemical Sciences, Queen Mary University of London , Mile End Road, London E1 4NS, United Kingdom
| | - Gregory J P Perry
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - Xacobe C Cambeiro
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - Francisco Juliá-Hernández
- School of Biological and Chemical Sciences, Queen Mary University of London , Mile End Road, London E1 4NS, United Kingdom
| | - Jude N Arokianathar
- School of Biological and Chemical Sciences, Queen Mary University of London , Mile End Road, London E1 4NS, United Kingdom
| | - Igor Larrosa
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| |
Collapse
|
22
|
Laidaoui N, He M, El Abed D, Soulé JF, Doucet H. Reactivity of (poly)fluorobenzamides in palladium-catalysed direct arylations. RSC Adv 2016. [DOI: 10.1039/c6ra12165a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Under PdCl2/PivOK as reaction conditions, fluoro substituents act as better directing groups than amides in the palladium-catalysed direct arylations.
Collapse
Affiliation(s)
- Nouria Laidaoui
- Institut des Sciences Chimiques de Rennes
- UMR 6226
- CNRS-Université de Rennes 1
- “Organométalliques: Matériaux et Catalyse”
- Campus de Beaulieu
| | - Mian He
- Institut des Sciences Chimiques de Rennes
- UMR 6226
- CNRS-Université de Rennes 1
- “Organométalliques: Matériaux et Catalyse”
- Campus de Beaulieu
| | - Douniazad El Abed
- Laboratoire de Chimie Fine
- Département de Chimie, Faculté des Sciences Exactes et Appliquées
- Université d'Oran 1 Ahmed BenBella
- Oran 31100
- Algeria
| | - Jean-François Soulé
- Institut des Sciences Chimiques de Rennes
- UMR 6226
- CNRS-Université de Rennes 1
- “Organométalliques: Matériaux et Catalyse”
- Campus de Beaulieu
| | - Henri Doucet
- Institut des Sciences Chimiques de Rennes
- UMR 6226
- CNRS-Université de Rennes 1
- “Organométalliques: Matériaux et Catalyse”
- Campus de Beaulieu
| |
Collapse
|
23
|
Ruch AA, Handa S, Kong F, Nesterov VN, Pahls DR, Cundari TR, Slaughter LM. Competing amination and C–H arylation pathways in Pd/xantphos-catalyzed transformations of binaphthyl triflates: switchable routes to chiral amines and helicene derivatives. Org Biomol Chem 2016; 14:8123-40. [DOI: 10.1039/c6ob01102k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A Pd(OAc)2/xantphos catalyst system can be tuned to promote either amination or C–H arylation of hindered binaphthyl 2-triflates, with xantphos's hemilability playing a key role.
Collapse
Affiliation(s)
- Aaron A. Ruch
- Department of Chemistry
- University of North Texas
- Denton
- USA
| | - Sachin Handa
- Department of Chemistry
- Oklahoma State University Stillwater
- Oklahoma
- USA
| | - Fanji Kong
- Department of Chemistry
- University of North Texas
- Denton
- USA
| | | | - Dale R. Pahls
- Department of Chemistry
- University of North Texas
- Denton
- USA
| | | | | |
Collapse
|
24
|
Palladium-catalyzed non-directed C–H bond arylation of difluorobenzenes and dichlorobenzenes bearing benzoxazole or benzothiazole. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2015.07.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
|
25
|
Palladium-Catalyzed Zinc-Amide-Mediated CH Arylation of Fluoroarenes and Heteroarenes with Aryl Sulfides. Chemistry 2015; 21:14703-7. [DOI: 10.1002/chem.201502101] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Indexed: 12/23/2022]
|
26
|
He M, Soulé JF, Doucet H. Reactivity ofPara-Substituted Fluorobenzenes in Palladium-catalyzed Intermolecular Direct Arylations. ChemCatChem 2015. [DOI: 10.1002/cctc.201500185] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
27
|
Chung LGY, Juwaini NAB, Seayad J. Palladium-Catalyzed Oxidative Heck Coupling of Cyclic Enones with Simple Arenes by CH Activation. ChemCatChem 2015. [DOI: 10.1002/cctc.201500079] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
28
|
Yuen OY, Charoensak M, So CM, Kuhakarn C, Kwong FY. A General Direct Arylation of Polyfluoroarenes with Heteroaryl and Aryl Chlorides Catalyzed by Palladium Indolylphosphine Complexes. Chem Asian J 2015; 10:857-61. [DOI: 10.1002/asia.201500048] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Indexed: 11/09/2022]
|
29
|
Fu Z, Xiong Q, Zhang W, Li Z, Cai H. Pd-catalyzed direct arylation of electron-deficient polyfluoroarenes with aryliodine(III) diacetates. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.11.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
30
|
Direct palladium-catalyzed desulfitative CC coupling of polyfluoroarenes with arylsulfinate salts: Water-accelerated reactions. J Fluor Chem 2014. [DOI: 10.1016/j.jfluchem.2014.06.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
31
|
Ferguson DM, Rudolph SR, Kalyani D. Palladium-Catalyzed Intra- and Intermolecular C-H Arylation Using Mesylates: Synthetic Scope and Mechanistic Studies. ACS Catal 2014; 4:2395-2401. [PMID: 25068072 PMCID: PMC4105186 DOI: 10.1021/cs500587b] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 06/10/2014] [Indexed: 01/17/2023]
Abstract
This paper describes the development of Pd-catalyzed inter- and intramolecular direct arylation using mesylates. Furthermore, a sequential mesylation/arylation protocol using phenols as substrates is described. These transformations are general with respect to the electronics of the C-H substrates and allow for the synthesis of diverse heterocyclic motifs in good yields. Both arenes and heteroarenes efficiently participate in these reactions. Preliminary mechanistic studies are presented for both inter- and intramolecular arylations.
Collapse
Affiliation(s)
- Devin M. Ferguson
- Department of Chemistry, St. Olaf College, 1520 St. Olaf Ave, Northfield, Minnesota 55057, United States
| | - Stacey R. Rudolph
- Department of Chemistry, St. Olaf College, 1520 St. Olaf Ave, Northfield, Minnesota 55057, United States
| | - Dipannita Kalyani
- Department of Chemistry, St. Olaf College, 1520 St. Olaf Ave, Northfield, Minnesota 55057, United States
| |
Collapse
|
32
|
He M, Soulé JF, Doucet H. Synthesis of (Poly)fluorobiphenyls through Metal-catalyzed CH Bond Activation/Arylation of (Poly)fluorobenzene Derivatives. ChemCatChem 2014. [DOI: 10.1002/cctc.201402020] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
33
|
Fan H, Shang Y, Su W. Palladium-Catalyzed Direct Arylation of Polyfluoroarenes with Organosilicon Reagents. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402091] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
34
|
Abstract
Pentakis(trifluoromethyl)phenol, a long requested compound, is now available within a two-step foolproof method from commercially available starting materials with a reasonably high yield (58%).
Collapse
Affiliation(s)
- Agnes Kütt
- Institute of Chemistry
- University of Tartu
- Tartu, Estonia
| | | |
Collapse
|
35
|
Miao T, Wang L. Palladium-Catalyzed Desulfitative Direct CH Arylation of Electron-Deficient Polyfluoroarenes with Sodium Arenesulfinates. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300587] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
|
36
|
Wang J, Ferguson DM, Kalyani D. Nickel-catalyzed intramolecular C–H arylation using aryl pivalates as electrophiles. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.04.096] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
37
|
Nervig CS, Waller PJ, Kalyani D. Palladium-Catalyzed Intramolecular C–H Arylation of Arenes Using Tosylates and Mesylates as Electrophiles. Org Lett 2012; 14:4838-41. [DOI: 10.1021/ol302166n] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Christine S. Nervig
- Department of Chemistry, St. Olaf College, 1520 St. Olaf Avenue, Northfield, Minnesota 55057, United States
| | - Peter J. Waller
- Department of Chemistry, St. Olaf College, 1520 St. Olaf Avenue, Northfield, Minnesota 55057, United States
| | - Dipannita Kalyani
- Department of Chemistry, St. Olaf College, 1520 St. Olaf Avenue, Northfield, Minnesota 55057, United States
| |
Collapse
|
38
|
Juwaini NAB, Ng JKP, Seayad J. Catalytic Regioselective Oxidative Coupling of Furan-2-Carbonyls with Simple Arenes. ACS Catal 2012. [DOI: 10.1021/cs300356y] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Nur Asyikin Binte Juwaini
- Institute of Chemical and Engineering Sciences, 8 Biomedical Grove, Neuros, #07-01, Singapore
138665
| | - Joseph Kok Peng Ng
- Institute of Chemical and Engineering Sciences, 8 Biomedical Grove, Neuros, #07-01, Singapore
138665
| | - Jayasree Seayad
- Institute of Chemical and Engineering Sciences, 8 Biomedical Grove, Neuros, #07-01, Singapore
138665
| |
Collapse
|
39
|
Sach NW, Richter DT, Cripps S, Tran-Dubé M, Zhu H, Huang B, Cui J, Sutton SC. Synthesis of Aryl Ethers via a Sulfonyl Transfer Reaction. Org Lett 2012; 14:3886-9. [DOI: 10.1021/ol301615z] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Neal W. Sach
- Pfizer Global Research and Development, 10770 Science Center Drive, San Diego, California 92121, United States
| | - Daniel T. Richter
- Pfizer Global Research and Development, 10770 Science Center Drive, San Diego, California 92121, United States
| | - Stephan Cripps
- Pfizer Global Research and Development, 10770 Science Center Drive, San Diego, California 92121, United States
| | - Michelle Tran-Dubé
- Pfizer Global Research and Development, 10770 Science Center Drive, San Diego, California 92121, United States
| | - Huichun Zhu
- Pfizer Global Research and Development, 10770 Science Center Drive, San Diego, California 92121, United States
| | - Buwen Huang
- Pfizer Global Research and Development, 10770 Science Center Drive, San Diego, California 92121, United States
| | - Jean Cui
- Pfizer Global Research and Development, 10770 Science Center Drive, San Diego, California 92121, United States
| | - Scott C. Sutton
- Pfizer Global Research and Development, 10770 Science Center Drive, San Diego, California 92121, United States
| |
Collapse
|
40
|
Lee DS, Choy PY, So CM, Wang J, Lau CP, Kwong FY. Palladium-catalyzed direct arylation of polyfluoroarenes with aryl tosylates and mesylates. RSC Adv 2012. [DOI: 10.1039/c2ra21667a] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|