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Jacob C, Annibaletto J, Peng J, Bai R, Maes BUW, Lan Y, Evano G. Rhodium-Catalyzed Direct ortho-Arylation of Anilines. Angew Chem Int Ed Engl 2024; 63:e202403553. [PMID: 38683292 DOI: 10.1002/anie.202403553] [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: 02/20/2024] [Revised: 04/28/2024] [Accepted: 04/29/2024] [Indexed: 05/01/2024]
Abstract
An efficient and broadly applicable rhodium-catalyzed direct ortho-arylation of anilines with aryl iodides relying on readily available aminophosphines as traceless directing groups is reported. Its scope and functional group compatibility were both found to be quite broad as a large variety of both aminophosphines and (hetero)aryl iodides, including complex ones, could be utilized. The ortho-arylated anilines could be obtained in high average yields, without any competing diarylation and with full regioselectivity, which constitutes a major step forward compared to other processes. The reaction is moreover not limited to aryl iodides, as an aryl bromide and a triflate could be successfully used, and could be extended to diarylation. Mechanistic studies revealed the key and unique role of the aminophosphine, acting not only as a substrate but also as a ligand for the rhodium catalyst.
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Affiliation(s)
- Clément Jacob
- Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP 160/06, 1050, Brussels, Belgium
- Organic Synthesis Division, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Julien Annibaletto
- Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP 160/06, 1050, Brussels, Belgium
| | - Ju Peng
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 401331, China
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 401331, China
| | - Bert U W Maes
- Organic Synthesis Division, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 401331, China
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
| | - Gwilherm Evano
- Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP 160/06, 1050, Brussels, Belgium
- WEL Research Institute, Avenue Pasteur 6, 1300, Wavre, Belgium
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2
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Tsurugi H, Matsuno M, Kawakami T, Mashima K. Pyrazine Alkylation with Aldehydes and Haloalkanes Using N,N’‐Bis(trimethylsilyl)‐1,4‐dihydropyrazine Derivatives. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hayato Tsurugi
- Osaka University Department of Chemistry 1-3, Machikaneyama-cho 560-8531 Toyonaka JAPAN
| | | | | | - Kazushi Mashima
- Osaka University: Osaka Daigaku Pharmaceutical Sciences JAPAN
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3
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Hess A, Alandini N, Guelen HC, Prohaska JP, Knochel P. Regioselective magnesiations of functionalized arenes and heteroarenes using TMP 2Mg in hydrocarbons. Chem Commun (Camb) 2022; 58:8774-8777. [PMID: 35848786 DOI: 10.1039/d2cc03856k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the preparation of a new hydrocarbon-soluble magnesium amide TMP2Mg (TMP = 2,2,6,6-tetramethylpiperidyl). This base showed excellent properties for the regioselective magnesiation of various arenes and heteroarenes bearing ethyl esters and carbamates under very mild reaction conditions. Subsequent trapping with aryl iodides (Negishi cross-coupling) gave access to a range of highly functionalized valuable building blocks.
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Affiliation(s)
- Andreas Hess
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany.
| | - Nurtalya Alandini
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany.
| | - Hasret C Guelen
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany.
| | - Jan P Prohaska
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany.
| | - Paul Knochel
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany.
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4
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Liu H, Sha Q. ZnCl2/PhI=O Mediated Selective ortho-Chlorination of Amides. LETT ORG CHEM 2022. [DOI: 10.2174/1570178618666210624115748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
A new ortho-chlorination system consisting of zinc(II) and hypervalent iodine(III) reagent
was developed for ortho-chlorination of amides, and the desired products were obtained in
moderate to good yields (38-85%). This highly facile and convenient methodology is tolerant of
aromatic amide and alkyl amide with diverse substituted groups. A plausible mechanism has
been illustrated, in which carbocation rearrangement and metal salt coordinate facilitated orthochlorination
are involved.
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Affiliation(s)
- Haixuan Liu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural
University, Nanjing 210095, P.R. China
- Sanhome R&D Centre, Nanjing Sanhome Pharmaceutical Co., Ltd., Nanjing
211135, P.R. China
| | - Qiang Sha
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural
University, Nanjing 210095, P.R. China
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5
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Zhang J, Ke Q, Chen J, Yu J, Yan G. Trifluoroacetylation of Anilines with Ethyl Trifluoropyruvate Mediated by Copper(I) Chloride. LETT ORG CHEM 2019. [DOI: 10.2174/1570178616666190311162001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A novel copper(I)-mediated trifluoroacetylation of anilines with ethyl trifluoropyruvate as a
trifluoroacetylating reagent has been developed. Although this protocol could provide good yields in
most cases, the reaction exhibited the obvious electronic and steric effects of substituents. The trace
amount of products was only obtained for the substrates with ortho-substituted or electron-deficient
groups.
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Affiliation(s)
- Jieyu Zhang
- Department of Chemistry, Lishui University, Lishui 323000, China
| | - Qiumin Ke
- Department of Chemistry, Lishui University, Lishui 323000, China
| | - Jiaying Chen
- Department of Chemistry, Lishui University, Lishui 323000, China
| | - Jian Yu
- Department of Chemistry, Lishui University, Lishui 323000, China
| | - Guobing Yan
- Department of Chemistry, Lishui University, Lishui 323000, China
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Stevens MA, Hashim FH, Gwee ESH, Izgorodina EI, Mulvey RE, Blair VL. Contrasting Synergistic Heterobimetallic (Na-Mg) and Homometallic (Na or Mg) Bases in Metallation Reactions of Dialkylphenylphosphines and Dialkylanilines: Lateral versus Ring Selectivities. Chemistry 2018; 24:15669-15677. [PMID: 30101451 DOI: 10.1002/chem.201803477] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Indexed: 01/01/2023]
Abstract
A series of dialkylphenylphosphines and their analogous aniline substrates have been metallated with the synergistic mixed-metal base [(TMEDA)Na(TMP)(CH2 SiMe3 )Mg(TMP)] 1. Different metallation regioselectivities for the substrates were observed, with predominately lateral or meta-magnesiated products isolated from solution. Three novel heterobimetallic complexes [(TMEDA)Na(TMP)(CH2 PCH3 Ph)Mg(TMP)] 2, [(TMEDA)Na(TMP)(m-C6 H4 PiPr2 )Mg(TMP)] 3 and [(TMEDA)Na(TMP)(m-C6 H4 NEt2 )Mg(TMP)] 4 and two homometallic complexes [{(TMEDA)Na(EtNC6 H5 )}2 ] 5 and [(TMEDA)Na2 (TMP)(C6 H5 PEt)]2 6 derived from homometallic metallation have been crystallographically characterised. Complex 6 is an unprecedented sodium-amide, sodium-phosphide hybrid with a rare (NaNNaP)2 ladder motif. These products reveal contrasting heterobimetallic deprotonation with homometallic induced ethene elimination reactivity. Solution studies of metallation mixtures and electrophilic iodine quenching reactions confirmed the metallation sites. In an attempt to rationalise the regioselectivity of the magnesiation reactions the C-H acidities of the six substrates were determined in THF solution using DFT calculations employing the M06-2X functional and cc-pVTZ Dunning's basis set.
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Affiliation(s)
- Michael A Stevens
- School of Chemistry, Monash University, Melbourne, VIC, 3800, Australia
| | - Fairuz H Hashim
- School of Chemistry, Monash University, Melbourne, VIC, 3800, Australia
| | - Eunice S H Gwee
- School of Chemistry, Monash University, Melbourne, VIC, 3800, Australia
| | | | - Robert E Mulvey
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK
| | - Victoria L Blair
- School of Chemistry, Monash University, Melbourne, VIC, 3800, Australia
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8
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Huang B, Zhao Y, Yang C, Gao Y, Xia W. Combining Eosin Y with Selectfluor: A Regioselective Brominating System for Para-Bromination of Aniline Derivatives. Org Lett 2017; 19:3799-3802. [DOI: 10.1021/acs.orglett.7b01427] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Binbin Huang
- State
Key Lab of Urban Water Resource and Environment, School of Chemistry
and Chemical Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Yating Zhao
- State
Key Lab of Urban Water Resource and Environment, School of Chemistry
and Chemical Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Chao Yang
- State
Key Lab of Urban Water Resource and Environment, School of Chemistry
and Chemical Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Yuan Gao
- School
of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan
Road, Laishan District, Yantai 264005, China
| | - Wujiong Xia
- State
Key Lab of Urban Water Resource and Environment, School of Chemistry
and Chemical Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
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Abstract
Azines, which are six-membered aromatic compounds containing one or more nitrogen atoms, serve as ubiquitous structural cores of aromatic species with important applications in biological and materials sciences. Among a variety of synthetic approaches toward azines, C-H functionalization represents the most rapid and atom-economical transformation, and it is advantageous for the late-stage functionalization of azine-containing functional molecules. Since azines have several C-H bonds with different reactivities, the development of new reactions that allow for the functionalization of azines in a regioselective fashion has comprised a central issue. This review describes recent advances in the C-H functionalization of azines categorized as follows: (1) SNAr reactions, (2) radical reactions, (3) deprotonation/functionalization, and (4) metal-catalyzed reactions.
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Affiliation(s)
- Kei Murakami
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
| | - Shuya Yamada
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
| | - Takeshi Kaneda
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
| | - Kenichiro Itami
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
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Xiong X, Yeung YY. Highlyortho-Selective Chlorination of Anilines Using a Secondary Ammonium Salt Organocatalyst. Angew Chem Int Ed Engl 2016; 55:16101-16105. [DOI: 10.1002/anie.201607388] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 10/11/2016] [Indexed: 01/01/2023]
Affiliation(s)
- Xiaodong Xiong
- Department of Chemistry; The Chinese University of Hong Kong, Shatin; N.T. Hong Kong China
| | - Ying-Yeung Yeung
- Department of Chemistry; The Chinese University of Hong Kong, Shatin; N.T. Hong Kong China
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11
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Xiong X, Yeung YY. Highlyortho-Selective Chlorination of Anilines Using a Secondary Ammonium Salt Organocatalyst. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607388] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiaodong Xiong
- Department of Chemistry; The Chinese University of Hong Kong, Shatin; N.T. Hong Kong China
| | - Ying-Yeung Yeung
- Department of Chemistry; The Chinese University of Hong Kong, Shatin; N.T. Hong Kong China
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12
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Nxumalo W, Dinsmore A. Magnesiation of N-Heterocycles Using i-PrMgCl · LiCl and Catalytic Diisopropylamine. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2015.1090607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Liu JH, Yang CT, Lu XY, Zhang ZQ, Xu L, Cui M, Lu X, Xiao B, Fu Y, Liu L. Copper-Catalyzed Reductive Cross-Coupling of Nonactivated Alkyl Tosylates and Mesylates with Alkyl and Aryl Bromides. Chemistry 2014; 20:15334-8. [DOI: 10.1002/chem.201405223] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Indexed: 12/14/2022]
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