1
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Groß D, van Otterlo WAL, Trapp O, Berthold D. Atroposelective Ni II -Catalyzed Cross-Coupling Reactions Enable a Deeper Understanding of Negishi Couplings: Isolation and Application of Solid Aryl Higher-Order Zincates. Chemistry 2023; 29:e202302841. [PMID: 37665654 DOI: 10.1002/chem.202302841] [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: 08/31/2023] [Revised: 09/03/2023] [Accepted: 09/04/2023] [Indexed: 09/06/2023]
Abstract
The Negishi cross-coupling reactions involves the application of organozinc reagents and is a highly versatile reaction in synthetic organic chemistry. The transmetallation step plays a pivotal role in the mechanism of these types of cross-coupling reactions. In this study, mechanistic investigations are presented indicating that higher-order zincates are the transmetallating active species in Pd- and Ni-catalyzed Negishi cross-coupling reactions. These findings are supported by halide salt addition experiments and by obtaining a single X-ray crystal structure of the solid monoaryl higher-order zincate [1-NaphthylZnX3 ]2- Mg(THF)2 2+ . The procedure developed in this work was further applied to the synthesis of various monoaryl higher-order zincates, after which their synthetic usefulness in terms of high reactivity towards transmetallation in Negishi cross-couplings, as well as stability, was exemplified in several reactions.
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Affiliation(s)
- Damian Groß
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, Haus F, 81377, München, Germany
| | - Willem A L van Otterlo
- Department of Chemistry and Polymer Sciences, Stellenbosch University, Private Bag XI, Matieland, 7602, Stellenbosch, South Africa) ORTEP
| | - Oliver Trapp
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, Haus F, 81377, München, Germany
| | - Dino Berthold
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, Haus F, 81377, München, Germany
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2
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Tannoux T, Mazaud L, Cheisson T, Casaretto N, Auffrant A. Fe II complexes supported by an iminophosphorane ligand: synthesis and reactivity. Dalton Trans 2023; 52:12010-12019. [PMID: 37581245 DOI: 10.1039/d3dt00950e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
The synthesis of iron complexes supported by a mixed phosphine-lutidine-iminophosphorane (PPyNP) ligand was carried out. While bidentate κ2-N,N coordination was observed for FeCl2, pincer coordination modes were adopted at cationic iron centers, either through dechlorination of [LFe(PPyNP)Cl2] (1) or direct coordination of PPyNP to Fe(OTf)2. Reaction with tert-butylisocyanide gave access to the diamagnetic octahedral complex [Fe(PPyNP)(CNtBu)3]X2 (X = OTf (4), Cl (4')). Both 1 and 4 were shown to undergo deprotonation of the phosphinomethyl group, but the resulting complexes were not active for the dehydrogenative coupling of hexan-1-ol. The hydrosilylation of acetophenones was catalyzed at room temperature with 1 mol% of a catalyst generated in situ from cationic PPyNP-supported iron triflate complexes and KHBEt3.
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Affiliation(s)
- Thibault Tannoux
- Laboratoire de Chimie Moléculaire (LCM) CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, F-91120 Palaiseau Cedex, France.
| | - Louis Mazaud
- Laboratoire de Chimie Moléculaire (LCM) CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, F-91120 Palaiseau Cedex, France.
| | - Thibault Cheisson
- Laboratoire de Chimie Moléculaire (LCM) CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, F-91120 Palaiseau Cedex, France.
| | - Nicolas Casaretto
- Laboratoire de Chimie Moléculaire (LCM) CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, F-91120 Palaiseau Cedex, France.
| | - Audrey Auffrant
- Laboratoire de Chimie Moléculaire (LCM) CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, F-91120 Palaiseau Cedex, France.
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3
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Tannoux T, Auffrant A. Complexes featuring tridentate iminophosphorane ligands: Synthesis, reactivity, and catalysis. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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4
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Thakur SK, Kaur M, Manar KK, Adhikari M, Choudhury AR, Singh S. Well‐Defined Ni(0) and Ni(II) Complexes of Bicyclic (Alkyl)(Amino)Carbene (
Me
BICAAC): Catalytic Activity and Mechanistic Insights in Negishi Cross‐Coupling Reaction. Chemistry 2022; 28:e202202237. [DOI: 10.1002/chem.202202237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Sandeep Kumar Thakur
- Department of Chemical Sciences Indian Institute of Science Education and Research Mohali Knowledge City, Sector 81, SAS Nagar 140306 Mohali Punjab India
| | - Mandeep Kaur
- Department of Chemical Sciences Indian Institute of Science Education and Research Mohali Knowledge City, Sector 81, SAS Nagar 140306 Mohali Punjab India
| | - Krishna Kumar Manar
- Department of Chemical Sciences Indian Institute of Science Education and Research Mohali Knowledge City, Sector 81, SAS Nagar 140306 Mohali Punjab India
| | - Manu Adhikari
- Department of Chemical Sciences Indian Institute of Science Education and Research Mohali Knowledge City, Sector 81, SAS Nagar 140306 Mohali Punjab India
| | - Angshuman Roy Choudhury
- Department of Chemical Sciences Indian Institute of Science Education and Research Mohali Knowledge City, Sector 81, SAS Nagar 140306 Mohali Punjab India
| | - Sanjay Singh
- Department of Chemical Sciences Indian Institute of Science Education and Research Mohali Knowledge City, Sector 81, SAS Nagar 140306 Mohali Punjab India
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5
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Horbaczewskyj CS, Fairlamb IJS. Pd-Catalyzed Cross-Couplings: On the Importance of the Catalyst Quantity Descriptors, mol % and ppm. Org Process Res Dev 2022; 26:2240-2269. [PMID: 36032362 PMCID: PMC9396667 DOI: 10.1021/acs.oprd.2c00051] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Indexed: 12/26/2022]
Abstract
![]()
This Review examines parts per million (ppm) palladium
concentrations
in catalytic cross-coupling reactions and their relationship with
mole percentage (mol %). Most studies in catalytic cross-coupling
chemistry have historically focused on the concentration ratio between
(pre)catalyst and the limiting reagent (substrate), expressed as mol
%. Several recent papers have outlined the use of “ppm level”
palladium as an alternative means of describing catalytic cross-coupling
reaction systems. This led us to delve deeper into the literature
to assess whether “ppm level” palladium is a practically
useful descriptor of catalyst quantities in palladium-catalyzed cross-coupling
reactions. Indeed, we conjectured that many reactions could, unknowingly,
have employed low “ppm levels” of palladium (pre)catalyst,
and generally, what would the spread of ppm palladium look like across
a selection of studies reported across the vast array of the cross-coupling
chemistry literature. In a few selected examples, we have examined
other metal catalyst systems for comparison with palladium.
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Affiliation(s)
| | - Ian J. S. Fairlamb
- University of York, Heslington, York, North Yorkshire, YO10 5DD, United Kingdom
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6
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D’Accriscio F, Ohleier A, Nicolas E, Demange M, Thillaye Du Boullay O, Saffon-Merceron N, Fustier-Boutignon M, Rezabal E, Frison G, Nebra N, Mézailles N. [(dcpp)Ni(η2-Arene)] Precursors: Synthesis, Reactivity, and Catalytic Application to the Suzuki–Miyaura Reaction. Organometallics 2020. [DOI: 10.1021/acs.organomet.9b00834] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Florian D’Accriscio
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062 Toulouse, France
| | - Alexia Ohleier
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062 Toulouse, France
| | - Emmanuel Nicolas
- Laboratoire Chimie Moléculaire, Ecole Polytechnique, CNRS, 91128 Palaiseau Cédex, France
| | - Matthieu Demange
- Laboratoire Chimie Moléculaire, Ecole Polytechnique, CNRS, 91128 Palaiseau Cédex, France
| | - Olivier Thillaye Du Boullay
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062 Toulouse, France
| | - Nathalie Saffon-Merceron
- Institut de Chimie de Toulouse ICT-FR2599, Université Paul Sabatier, CNRS, 31062 Toulouse Cedex, France
| | - Marie Fustier-Boutignon
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062 Toulouse, France
| | - Elixabete Rezabal
- Laboratoire Chimie Moléculaire, Ecole Polytechnique, CNRS, 91128 Palaiseau Cédex, France
| | - Gilles Frison
- Laboratoire Chimie Moléculaire, Ecole Polytechnique, CNRS, 91128 Palaiseau Cédex, France
| | - Noel Nebra
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062 Toulouse, France
| | - Nicolas Mézailles
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062 Toulouse, France
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7
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Wang ZX, Yang B. Chemical transformations of quaternary ammonium salts via C–N bond cleavage. Org Biomol Chem 2020; 18:1057-1072. [DOI: 10.1039/c9ob02667c] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The reaction of quaternary ammonium salts via C–N bond cleavage to construct C–C, C–H and C–heteroatom bonds is summarized.
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Affiliation(s)
- Zhong-Xia Wang
- CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Bo Yang
- CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
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8
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Kubota K, Pang Y, Miura A, Ito H. Redox reactions of small organic molecules using ball milling and piezoelectric materials. Science 2019; 366:1500-1504. [DOI: 10.1126/science.aay8224] [Citation(s) in RCA: 182] [Impact Index Per Article: 36.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 10/30/2019] [Indexed: 12/20/2022]
Abstract
Over the past decade, photoredox catalysis has harnessed light energy to accelerate bond-forming reactions. We postulated that a complementary method for the redox-activation of small organic molecules in response to applied mechanical energy could be developed through the piezoelectric effect. Here, we report that agitation of piezoelectric materials via ball milling reduces aryl diazonium salts. This mechanoredox system can be applied to arylation and borylation reactions under mechanochemical conditions.
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Affiliation(s)
- Koji Kubota
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Yadong Pang
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Akira Miura
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Hajime Ito
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
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9
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Kurisu N, Asano E, Hatayama Y, Kurihara Y, Hashimoto T, Funatsu K, Ueda K, Yamaguchi Y. A β-Diketiminato-Based Pincer-Type Nickel(II) Complex: Synthesis and Catalytic Performance in the Cross-Coupling of Aryl Fluorides with Aryl Grignard Reagents. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201801179] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Nobutaka Kurisu
- Department of Advanced Materials Chemistry; Graduate School of Engineering; Yokohama National University; 79-5 Tokiwadai 240-8501 Hodogaya-ku, Yokohama Japan
| | - Erika Asano
- Department of Advanced Materials Chemistry; Graduate School of Engineering; Yokohama National University; 79-5 Tokiwadai 240-8501 Hodogaya-ku, Yokohama Japan
| | - Yuki Hatayama
- Department of Advanced Materials Chemistry; Graduate School of Engineering; Yokohama National University; 79-5 Tokiwadai 240-8501 Hodogaya-ku, Yokohama Japan
| | - Youji Kurihara
- Department of Advanced Materials Chemistry; Graduate School of Engineering; Yokohama National University; 79-5 Tokiwadai 240-8501 Hodogaya-ku, Yokohama Japan
| | - Toru Hashimoto
- Department of Advanced Materials Chemistry; Graduate School of Engineering; Yokohama National University; 79-5 Tokiwadai 240-8501 Hodogaya-ku, Yokohama Japan
| | - Kei Funatsu
- Department of Advanced Materials Chemistry; Graduate School of Engineering; Yokohama National University; 79-5 Tokiwadai 240-8501 Hodogaya-ku, Yokohama Japan
| | - Kazuyoshi Ueda
- Department of Advanced Materials Chemistry; Graduate School of Engineering; Yokohama National University; 79-5 Tokiwadai 240-8501 Hodogaya-ku, Yokohama Japan
| | - Yoshitaka Yamaguchi
- Department of Advanced Materials Chemistry; Graduate School of Engineering; Yokohama National University; 79-5 Tokiwadai 240-8501 Hodogaya-ku, Yokohama Japan
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10
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Bunda S, Udvardy A, Voronova K, Joó F. Organic Solvent-Free, Pd(II)-Salan Complex-Catalyzed Synthesis of Biaryls via Suzuki–Miyaura Cross-Coupling in Water and Air. J Org Chem 2018; 83:15486-15492. [DOI: 10.1021/acs.joc.8b02340] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Szilvia Bunda
- Department of Physical Chemistry, University of Debrecen, P.O. Box 400, Debrecen H-4002, Hungary
| | - Antal Udvardy
- Department of Physical Chemistry, University of Debrecen, P.O. Box 400, Debrecen H-4002, Hungary
| | - Krisztina Voronova
- Department of Physical Chemistry, University of Debrecen, P.O. Box 400, Debrecen H-4002, Hungary
| | - Ferenc Joó
- Department of Physical Chemistry, University of Debrecen, P.O. Box 400, Debrecen H-4002, Hungary
- MTA-DE Redox and Homogeneous Catalytic Reaction Mechanisms Research Group, University of Debrecen, P.O. Box 400, Debrecen H-4002, Hungary
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11
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Li W, Wang Z. Reaction of QuinolineN‐Oxides and PyridineN‐Oxides with Arylzinc Reagents: Synthesis of 2‐Arylquinolines and 2‐Arylpyridines. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800560] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Wei‐Ze Li
- CAS Key Laboratory of Soft Matter Chemistry and Department of ChemistryUniversity of Science and Technology of China Hefei Anhui 230026 P. R. China
| | - Zhong‐Xia Wang
- CAS Key Laboratory of Soft Matter Chemistry and Department of ChemistryUniversity of Science and Technology of China Hefei Anhui 230026 P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 P. R. China
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12
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Lu DD, He XX, Liu FS. Bulky Yet Flexible Pd-PEPPSI-IPentAn for the Synthesis of Sterically Hindered Biaryls in Air. J Org Chem 2017; 82:10898-10911. [DOI: 10.1021/acs.joc.7b01711] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Dong-Dong Lu
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, China
| | - Xu-Xian He
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, China
| | - Feng-Shou Liu
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, China
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13
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Borch Jacobsen C, Meldal M, Diness F. Mechanism and Scope of Base-Controlled Catalyst-Free N-Arylation of Amines with Unactivated Fluorobenzenes. Chemistry 2016; 23:846-851. [DOI: 10.1002/chem.201604098] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Indexed: 01/27/2023]
Affiliation(s)
- Christian Borch Jacobsen
- Center for Evolutionary Chemical Biology; Department of Chemistry; University of Copenhagen; Universitetsparken 5 2100 Copenhagen Denmark
| | - Morten Meldal
- Center for Evolutionary Chemical Biology; Department of Chemistry; University of Copenhagen; Universitetsparken 5 2100 Copenhagen Denmark
| | - Frederik Diness
- Center for Evolutionary Chemical Biology; Department of Chemistry; University of Copenhagen; Universitetsparken 5 2100 Copenhagen Denmark
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14
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Tao JL, Wang ZX. Pincer-Nickel-Catalyzed Cross-Coupling of Aryl Sulfamates with Arylzinc Chlorides. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500987] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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15
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Wu D, Wang ZX. P,N,N-pincer nickel-catalyzed cross-coupling of aryl fluorides and chlorides. Org Biomol Chem 2015; 12:6414-24. [PMID: 25012049 DOI: 10.1039/c4ob01041h] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
P,N,N-Pincer nickel complexes [Ni(Cl){N(2-R2PC6H4)(2'-Me2NC6H4)}] (R = Ph, 3a; R = Pr(i), 3b; R = Cy, 3c) were synthesized and their catalysis toward the Kumada or Negishi cross-coupling reaction of aryl fluorides and chlorides was evaluated. Complex 3a effectively catalyzes the cross-coupling of (hetero)aryl fluorides with aryl Grignard reagents at room temperature. Complex 3a also catalyzes the cross-coupling of (hetero)aryl chlorides and arylzinc reagents at 80 °C with low catalyst loadings and good functional group compatibility.
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Affiliation(s)
- Dan Wu
- CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.
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16
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Nicolas E, Ohleier A, D'Accriscio F, Pécharman AF, Demange M, Ribagnac P, Ballester J, Gosmini C, Mézailles N. “(Diphosphine)Nickel”-Catalyzed Negishi Cross-Coupling: An Experimental and Theoretical Study. Chemistry 2015; 21:7690-4. [DOI: 10.1002/chem.201500192] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Indexed: 11/07/2022]
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17
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Wu D, Tao JL, Wang ZX. Highly efficient pincer nickel catalyzed cross-coupling of aryltrimethylammonium triflates with arylzinc reagents. Org Chem Front 2015. [DOI: 10.1039/c4qo00321g] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N,N,P-Pincer nickel complexes [Ni(Cl){N(2-R2PC6H4)(2′-Me2NC6H4)}] highly effectively catalyze the cross-coupling of aryltrimethylammonium triflates with arylzinc reagents.
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Affiliation(s)
- Dan Wu
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- China
| | - Jian-Long Tao
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- China
| | - Zhong-Xia Wang
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
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18
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Yang X, Wang ZX. Mono- and Dinuclear Pincer Nickel Catalyzed Activation and Transformation of C–Cl, C–N, and C–O Bonds. Organometallics 2014. [DOI: 10.1021/om500452c] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Xia Yang
- CAS Key
Laboratory of Soft
Matter Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
| | - Zhong-Xia Wang
- CAS Key
Laboratory of Soft
Matter Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
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19
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Liu H, Xu H, Yuan Y. Rhodium-catalyzed direct oxidative cross-coupling of 2-aryl pyridine with benzothiazoles. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.07.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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20
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Monnereau L, Sémeril D, Matt D. Calixarene-Derived Mono-Iminophosphoranes: Highly Efficient Ligands for Palladium- and Nickel-Catalysed Cross-Coupling. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300091] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Alajarin M, Lopez-Leonardo C, Llamas-Lorente P, Raja R, Bautista D, Orenes RA. Palladium complexes derived from N,N-bidentate NH-iminophosphorane ligands: synthesis and use as catalysts in the Sonogashira reaction. Dalton Trans 2013; 41:12259-69. [PMID: 22930075 DOI: 10.1039/c2dt31290e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The addition of primary amines to the C=C bond of diphenylalkenyl iminophosphoranes yielded a new subtype of N,N-bidentate ligands bearing N=P(V)-C-C-NH backbones. These donor ligands reacted with PdCl(2)(COD) to give the corresponding σN,σN-palladium complexes containing secondary amino groups, bearing an intrinsically chiral nitrogen atom, and iminophosphorane units. These new complexes have been fully characterized by the use of spectroscopic techniques and X-ray crystallography. The comparison of the data extracted from their solution NMR spectra with their solid state structures demonstrated the conformational stability of their six-membered chelate ring and also the configurational stability of the chiral nitrogen atom, thus ruling out an arm-off racemization process. The addition of the chiral, racemic α-methylbenzylamine to the prochiral P-alkenyl iminophosphoranes yielded mixtures of the two expected diasteroisomeric ligands in low diastereoisomeric ratios. One of these mixtures was resolved into their components, each one in turn giving rise to a pair of diasteromeric palladium complexes epimeric at the amino nitrogen atom. One selected example of the new complexes efficiently catalyzes the copper- and amine-free Sonogashira reaction of aryl halides with acetylenes.
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Affiliation(s)
- Mateo Alajarin
- Departamento de Química Orgánica, Facultad de Química, Regional Campus of International Excellence Campus Mare Nostrum, Universidad de Murcia, E-30100 Murcia, Spain.
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22
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Guo WJ, Wang ZX. Cross-coupling of ArX with ArMgBr catalyzed by N-heterocyclic carbene-based nickel complexes. J Org Chem 2013; 78:1054-61. [PMID: 23289643 DOI: 10.1021/jo302425x] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
N-Heterocyclic carbene-based pincer nickel complexes were synthesized and characterized. These complexes efficiently catalyze cross-coupling of aryl Grignard reagents with aryl chlorides or fluorides under mild conditions.
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Affiliation(s)
- Wang-Jun Guo
- CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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23
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Abellán-López A, Chicote MT, Bautista D, Vicente J. From Chelate C,N-Cyclopalladated Oximes to C,N,N′-, C,N,S-, or C,N,C′-Pincer Palladium(II) Complexes by Formation of Oxime Ether Ligands. Organometallics 2012. [DOI: 10.1021/om3007213] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Antonio Abellán-López
- Grupo de Química Organometálica,
Departamento de Química Inorgánica, Universidad de Murcia, Apartado 4021, 30071 Murcia, Spain
| | - María-Teresa Chicote
- Grupo de Química Organometálica,
Departamento de Química Inorgánica, Universidad de Murcia, Apartado 4021, 30071 Murcia, Spain
| | - Delia Bautista
- SAI, Universidad de Murcia, Apartado 4021, 30071 Murcia, Spain
| | - José Vicente
- Grupo de Química Organometálica,
Departamento de Química Inorgánica, Universidad de Murcia, Apartado 4021, 30071 Murcia, Spain
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24
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Liu N, Wang ZX. Nickel-Catalyzed Cross-Coupling of Arene- or Heteroarenecarbonitriles with Aryl- or Heteroarylmanganese Reagents through CCN Bond Activation. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200369] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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25
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Zhang XQ, Wang ZX. Cross-coupling of aryltrimethylammonium iodides with arylzinc reagents catalyzed by amido pincer nickel complexes. J Org Chem 2012; 77:3658-63. [PMID: 22404548 DOI: 10.1021/jo300209d] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The cross-coupling reaction of aryltrimethylammonium iodides with aryl- or heteroarylzinc chlorides catalyzed by amido pincer nickel complexes was performed. The reaction requires low catalyst loading and displays broad substrate scope.
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Affiliation(s)
- Xue-Qi Zhang
- CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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26
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Affiliation(s)
- Zhong‐Xia Wang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China, Fax: +86‐551‐3601592
| | - Ning Liu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China, Fax: +86‐551‐3601592
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27
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Zhang L, Zou L, Xiao J, Zhou P, Zhong C, Chen X, Qin J, Mariz IFA, Maçôas E. Symmetrical and unsymmetrical multibranched D–π–A molecules based on 1,3,5-triazine unit: synthesis and photophysical properties. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm32323k] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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28
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Zhang Q, Zhang XQ, Wang ZX. Nickel complexes supported by quinoline-based ligands: synthesis, characterization and catalysis in the cross-coupling of arylzinc reagents and aryl chlorides or aryltrimethylammonium salts. Dalton Trans 2012; 41:10453-64. [DOI: 10.1039/c2dt30886j] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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29
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Gerber R, Frech CM. Negishi Cross-Coupling Reactions Catalyzed by an Aminophosphine-Based Nickel System: A Reliable and General Applicable Reaction Protocol for the High-Yielding Synthesis of Biaryls. Chemistry 2011; 17:11893-904. [DOI: 10.1002/chem.201101037] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Indexed: 11/07/2022]
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30
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Bensaid S, Roger J, Beydoun K, Roy D, Doucet H. Direct 2-Arylation of Thiophene Using Low Loading of a Phosphine-Free Palladium Catalyst. SYNTHETIC COMMUN 2011. [DOI: 10.1080/00397911.2010.518781] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Souhila Bensaid
- a Institut Sciences Chimiques de Rennes, CNRS-Université de Rennes “Catalyse et Organometalliques,” , Rennes , France
| | - Julien Roger
- a Institut Sciences Chimiques de Rennes, CNRS-Université de Rennes “Catalyse et Organometalliques,” , Rennes , France
| | - Kassem Beydoun
- a Institut Sciences Chimiques de Rennes, CNRS-Université de Rennes “Catalyse et Organometalliques,” , Rennes , France
| | - David Roy
- a Institut Sciences Chimiques de Rennes, CNRS-Université de Rennes “Catalyse et Organometalliques,” , Rennes , France
| | - Henri Doucet
- a Institut Sciences Chimiques de Rennes, CNRS-Université de Rennes “Catalyse et Organometalliques,” , Rennes , France
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31
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Xie LG, Wang ZX. Nickel-Catalyzed Cross-Coupling of Aryltrimethylammonium Iodides with Organozinc Reagents. Angew Chem Int Ed Engl 2011; 50:4901-4. [DOI: 10.1002/anie.201100683] [Citation(s) in RCA: 144] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Revised: 03/23/2011] [Indexed: 11/08/2022]
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32
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Xie LG, Wang ZX. Nickel-Catalyzed Cross-Coupling of Aryltrimethylammonium Iodides with Organozinc Reagents. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100683] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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33
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Fullmer BC, Fan H, Pink M, Caulton KG. Evaluating the reducing power of 3-coordinate T-shaped NiI. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2010.12.059] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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34
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35
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Fullmer BC, Fan H, Pink M, Huffman JC, Tsvetkov NP, Caulton KG. Three-Coordinate NiII: Tracing the Origin of an Unusual, Facile Si−C(sp3) Bond Cleavage in [(tBu2PCH2SiMe2)2N]Ni+. J Am Chem Soc 2011; 133:2571-82. [DOI: 10.1021/ja108426f] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Benjamin C. Fullmer
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Hongjun Fan
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Maren Pink
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - John C. Huffman
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Nikolay P. Tsvetkov
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Kenneth G. Caulton
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
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36
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Nadres ET, Lazareva A, Daugulis O. Palladium-catalyzed indole, pyrrole, and furan arylation by aryl chlorides. J Org Chem 2011; 76:471-83. [PMID: 21192652 PMCID: PMC3021639 DOI: 10.1021/jo1018969] [Citation(s) in RCA: 146] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The palladium-catalyzed direct arylation of indoles, pyrroles, and furans by aryl chlorides has been demonstrated. The method employs a palladium acetate catalyst, 2-(dicyclohexylphosphino)-biphenyl ligand, and an inorganic base. Electron-rich and electron-poor aryl chlorides as well as chloropyridine coupling partners can be used, and arylated heterocycles are obtained in moderate to good yields. Optimization of base, ligand, and solvent is required for achieving best results.
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Affiliation(s)
- Enrico T. Nadres
- Department of Chemistry, University of Houston, Houston, TX 77204
| | - Anna Lazareva
- Department of Chemistry, University of Houston, Houston, TX 77204
| | - Olafs Daugulis
- Department of Chemistry, University of Houston, Houston, TX 77204
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37
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Zhang T, Gao X, Wood HB. Pd-catalyzed Negishi coupling of pyrazole triflates with alkyl zinc halides. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2010.11.037] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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38
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Liu N, Wang L, Wang ZX. Room-temperature nickel-catalysed cross-couplings of aryl chlorides with arylzincs. Chem Commun (Camb) 2011; 47:1598-600. [DOI: 10.1039/c0cc03064c] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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39
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Bolliger JL, Frech CM. [Pd(Cl)2{P(NC5H10)(C6H11)2}2]--a highly effective and extremely versatile palladium-based Negishi catalyst that efficiently and reliably operates at low catalyst loadings. Chemistry 2010; 16:11072-81. [PMID: 20715208 DOI: 10.1002/chem.201001201] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
[Pd(Cl)(2){P(NC(5)H(10))(C(6)H(11))(2)}(2)] (1) has been prepared in quantitative yield by reacting commercially available [Pd(cod)(Cl)(2)] (cod=cyclooctadiene) with readily prepared 1-(dicyclohexylphosphanyl)piperidine in toluene under N(2) within a few minutes at room temperature. Complex 1 has proved to be an excellent Negishi catalyst, capable of quantitatively coupling a wide variety of electronically activated, non-activated, deactivated, sterically hindered, heterocyclic, and functionalized aryl bromides with various (also heterocyclic) arylzinc reagents, typically within a few minutes at 100 °C in the presence of just 0.01 mol% of catalyst. Aryl bromides containing nitro, nitrile, ether, ester, hydroxy, carbonyl, and carboxyl groups, as well as acetals, lactones, amides, anilines, alkenes, carboxylic acids, acetic acids, and pyridines and pyrimidines, have been successfully used as coupling partners. Furthermore, electronic and steric variations are tolerated in both reaction partners. Experimental observations strongly indicate that a molecular mechanism is operative.
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Affiliation(s)
- Jeanne L Bolliger
- Department of Inorganic Chemistry, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
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40
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Koizumi TA, Teratani T, Okamoto K, Yamamoto T, Shimoi Y, Kanbara T. Nickel(II) complexes bearing a pincer ligand containing thioamide units: Comparison between SNS- and SCS-pincer ligands. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.04.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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41
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Varnedoe LS, Angel BD, McClellan JL, Hanna JM. Pd/C-Catalyzed Cross-Coupling of Arenediazonium Salts with Potassium Aryltrifluoroborates. LETT ORG CHEM 2010; 7:1-6. [PMID: 25083143 DOI: 10.2174/157017810790533968] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A convenient protocol for the synthesis of biaryls from arenediazonium salts and potassium aryltrifluoroborates in refluxing methanol catalyzed by Pd/C is described. The protocol is simple to execute and gives moderate to high yields of cross-coupling products in most cases.
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Affiliation(s)
- Lee S Varnedoe
- Department of Chemistry, Physics, and Geology, Winthrop University, Sims Science Building, Rock Hill, SC 29733
| | - Brad D Angel
- Department of Chemistry, Physics, and Geology, Winthrop University, Sims Science Building, Rock Hill, SC 29733
| | - Joshua L McClellan
- Department of Chemistry, Physics, and Geology, Winthrop University, Sims Science Building, Rock Hill, SC 29733
| | - James M Hanna
- Department of Chemistry, Physics, and Geology, Winthrop University, Sims Science Building, Rock Hill, SC 29733
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42
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Zhang C, Wang ZX. N-Heterocyclic Carbene-Based Nickel Complexes: Synthesis and Catalysis in Cross-Couplings of Aryl Chlorides with ArMX (M = Mg or Zn). Organometallics 2009. [DOI: 10.1021/om9006399] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cheng Zhang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
| | - Zhong-Xia Wang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
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43
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Inamoto K, Kuroda JI, Kwon E, Hiroya K, Doi T. Pincer-type bis(carbene)-derived complexes of nickel(II): Synthesis, structure, and catalytic activity. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2008.11.003] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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44
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Chai ZY, Wang ZX. Synthesis and characterization of Sn(II), Pb(II) and Yb(II) complexes supported by [C(Ph2PNSiMe3){6-(2-RC5H3N)}]2− or [CH(Ph2PNSiMe3){6-(2-RC5H3N)}]− (R = 3,5-dimethyl-1-pyrazolyl or iminophosphoranyl) ligands. Dalton Trans 2009:8005-12. [DOI: 10.1039/b906266a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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Li BJ, Li YZ, Lu XY, Liu J, Guan BT, Shi ZJ. Cross-Coupling of Aryl/Alkenyl Pivalates with Organozinc Reagents through Nickel-Catalyzed CO Bond Activation under Mild Reaction Conditions. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200803814] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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46
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Li BJ, Li YZ, Lu XY, Liu J, Guan BT, Shi ZJ. Cross-Coupling of Aryl/Alkenyl Pivalates with Organozinc Reagents through Nickel-Catalyzed CO Bond Activation under Mild Reaction Conditions. Angew Chem Int Ed Engl 2008; 47:10124-7. [DOI: 10.1002/anie.200803814] [Citation(s) in RCA: 183] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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47
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Fan H, Fullmer B, Pink M, Caulton K. [Ni{N(SiMe2CH2PtBu2)2}]+: Direct Observation of Transannular SiC(sp3) Bond Coordination. Angew Chem Int Ed Engl 2008; 47:9112-4. [DOI: 10.1002/anie.200802654] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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48
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Fan H, Fullmer B, Pink M, Caulton K. [Ni{N(SiMe2CH2PtBu2)2}]+: Direct Observation of Transannular SiC(sp3) Bond Coordination. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200802654] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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49
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Xi Z, Zhou Y, Chen W. Efficient Negishi coupling reactions of aryl chlorides catalyzed by binuclear and mononuclear nickel-N-heterocyclic carbene complexes. J Org Chem 2008; 73:8497-501. [PMID: 18841915 DOI: 10.1021/jo8018686] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We describe the first nickel-N-heterocyclic carbene catalyzed Negishi cross-coupling reaction of a variety of unactivated aryl chlorides, heterocyclic chlorides, aryl dichlorides, and vinyl chloride. The mononuclear and binuclear nickel-NHC complexes supported by heteroarene-functionalized NHC ligands are found to be highly efficient for the coupling of unactivated aryl chlorides and organozinc reagents, leading to biaryls and terphenyls in good to excellent yields under mild conditions. For all aryl chlorides, the binuclear nickel catalysts show activities higher than those of mononuclear nickel complexes because of possible bimetallic cooperative effect.
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Affiliation(s)
- Zhenxing Xi
- Department of Chemistry, Zhejiang University, Xixi Campus, Hangzhou 310028, PR China
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50
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Sun K, Wang L, Wang ZX. Synthesis and Characterization of Amido Pincer Complexes of Lithium and Nickel and Catalysis of the Nickel Complexes in the Kumada Cross-Coupling. Organometallics 2008. [DOI: 10.1021/om800580p] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kai Sun
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
| | - Li Wang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
| | - Zhong-Xia Wang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
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