51
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Li GC, Wang P, Farmer ME, Yu JQ. Ligand-Enabled Auxiliary-Free meta-C-H Arylation of Phenylacetic Acids. Angew Chem Int Ed Engl 2017; 56:6874-6877. [PMID: 28485900 PMCID: PMC5535739 DOI: 10.1002/anie.201702686] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Indexed: 01/25/2023]
Abstract
The meta-C-H arylation of free phenylacetic acid was realized using 2-carbomethoxynorbornene (NBE-CO2 Me) as a transient mediator. Both the modified norbornene and the mono-protected 3-amino-2-hydroxypyridine type ligand are crucial for this auxiliary-free meta-C-H arylation reaction. A series of phenylacetic acids, including mandelic acid and phenylglycine, react smoothly with various aryl iodides to provide the meta-arylated products in high yields.
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Affiliation(s)
- Gen-Cheng Li
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Peng Wang
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Marcus E Farmer
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
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52
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Mei R, Zhang SK, Ackermann L. Ruthenium(II)-Catalyzed C–H Alkynylation of Weakly Coordinating Benzoic Acids. Org Lett 2017; 19:3171-3174. [DOI: 10.1021/acs.orglett.7b01294] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Ruhuai Mei
- Institut für Organische
und Biomolekulare Chemie, Georg-August-Universität, Tammannstraße 2, 37077 Göttingen, Germany
| | - Shou-Kun Zhang
- Institut für Organische
und Biomolekulare Chemie, Georg-August-Universität, Tammannstraße 2, 37077 Göttingen, Germany
| | - Lutz Ackermann
- Institut für Organische
und Biomolekulare Chemie, Georg-August-Universität, Tammannstraße 2, 37077 Göttingen, Germany
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53
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Li GC, Wang P, Farmer ME, Yu JQ. Ligand-Enabled Auxiliary-Freemeta-C−H Arylation of Phenylacetic Acids. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702686] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gen-Cheng Li
- Department of Chemistry; The Scripps Research Institute (TSRI); 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Peng Wang
- Department of Chemistry; The Scripps Research Institute (TSRI); 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Marcus E. Farmer
- Department of Chemistry; The Scripps Research Institute (TSRI); 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Jin-Quan Yu
- Department of Chemistry; The Scripps Research Institute (TSRI); 10550 North Torrey Pines Road La Jolla CA 92037 USA
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54
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Chen C, Liu P, Tang J, Deng G, Zeng X. Iridium-Catalyzed, Weakly Coordination-Assisted Ortho-Alkynylation of (Hetero)aromatic Carboxylic Acids without Cyclization. Org Lett 2017; 19:2474-2477. [DOI: 10.1021/acs.orglett.7b00581] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Changpeng Chen
- Frontier
Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710054, China
| | - Pei Liu
- Frontier
Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710054, China
| | - Jinghua Tang
- Frontier
Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710054, China
| | - Gongda Deng
- Frontier
Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710054, China
| | - Xiaoming Zeng
- Frontier
Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710054, China
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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55
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Mandal A, Dana S, Sahoo H, Grandhi GS, Baidya M. Ruthenium(II)-Catalyzed ortho-C–H Chalcogenation of Benzoic Acids via Weak O-Coordination: Synthesis of Chalcogenoxanthones. Org Lett 2017; 19:2430-2433. [DOI: 10.1021/acs.orglett.7b00996] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anup Mandal
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Suman Dana
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Harekrishna Sahoo
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Gowri Sankar Grandhi
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
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56
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Nareddy P, Jordan F, Szostak M. Highly chemoselective ruthenium(ii)-catalyzed direct arylation of cyclic and N, N-dialkyl benzamides with aryl silanes. Chem Sci 2017; 8:3204-3210. [PMID: 28507696 PMCID: PMC5414548 DOI: 10.1039/c7sc00156h] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 02/16/2017] [Indexed: 11/21/2022] Open
Abstract
The ruthenium(ii)-catalyzed oxidative cross-coupling of C(sp2)-H bonds with organosilanes has been accomplished for the first time. This novel protocol enlists challenging cyclic and N,N-dialkyl benzamides as weakly-coordinating substrates to achieve highly regioselective C(sp2)-H arylation as a proof-of-concept, taking advantage of the attractive features of organosilanes as coupling partners. This innovative method is characterized by very high chemoselectivity, installing halide functional groups (I, Br, Cl) that are incompatible with Ru(ii)-carboxylate systems employing halides as cross-coupling partners, while obviating the need for sensitive organometallic reagents and cryogenic temperatures typical to the classic directed-ortho-metallation (DoM) techniques, employing benzamides to afford bioactive structural motifs.
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Affiliation(s)
- Pradeep Nareddy
- Department of Chemistry , Rutgers University , 73 Warren Street , Newark , NJ 07102 , USA .
| | - Frank Jordan
- Department of Chemistry , Rutgers University , 73 Warren Street , Newark , NJ 07102 , USA .
| | - Michal Szostak
- Department of Chemistry , Rutgers University , 73 Warren Street , Newark , NJ 07102 , USA .
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57
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Biafora A, Khan BA, Bahri J, Hewer JM, Goossen LJ. Doubly Regioselective C–H Hydroarylation of Unsymmetrical Alkynes Using Carboxylates as Deciduous Directing Groups. Org Lett 2017; 19:1232-1235. [DOI: 10.1021/acs.orglett.7b00300] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Agostino Biafora
- FB Chemie
und Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern, Erwin-Schroedinger-Strasse Geb 52-54, 67663 Kaiserslautern, Germany
| | - Bilal A. Khan
- Department
of Chemistry, University of Azad Jammu and Kashmir, 13100 Muzaffarabad, AJK, Pakistan
| | - Janet Bahri
- Fakultät
für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Joachim M. Hewer
- FB Chemie
und Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern, Erwin-Schroedinger-Strasse Geb 52-54, 67663 Kaiserslautern, Germany
| | - Lukas J. Goossen
- Fakultät
für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
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58
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Ruan Z, Zhang SK, Zhu C, Ruth PN, Stalke D, Ackermann L. Ruthenium(II)-Catalyzed meta C-H Mono- and Difluoromethylations by Phosphine/Carboxylate Cooperation. Angew Chem Int Ed Engl 2017; 56:2045-2049. [PMID: 28106316 DOI: 10.1002/anie.201611595] [Citation(s) in RCA: 163] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 12/23/2016] [Indexed: 01/11/2023]
Abstract
Ruthenium(II)-catalyzed meta-selective C-H (di)fluoromethylation was accomplished by phosphine and carboxylate cooperation. The remote C-H functionalization was characterized by ample substrate scope, thereby setting the stage for meta-(di)fluoromethylation through facile C-H cleavage.
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Affiliation(s)
- Zhixiong Ruan
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077, Göttingen, Germany
| | - Shou-Kun Zhang
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077, Göttingen, Germany
| | - Cuiju Zhu
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077, Göttingen, Germany
| | - Paul Niklas Ruth
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, 37077, Göttingen, Germany
| | - Dietmar Stalke
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, 37077, Göttingen, Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077, Göttingen, Germany
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59
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Ruan Z, Zhang SK, Zhu C, Ruth PN, Stalke D, Ackermann L. Ruthenium(II)-Catalyzed meta
C−H Mono- and Difluoromethylations by Phosphine/Carboxylate Cooperation. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611595] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Zhixiong Ruan
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Shou-Kun Zhang
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Cuiju Zhu
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Paul Niklas Ruth
- Institut für Anorganische Chemie; Georg-August-Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
| | - Dietmar Stalke
- Institut für Anorganische Chemie; Georg-August-Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
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60
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Ma W, Gandeepan P, Li J, Ackermann L. Recent advances in positional-selective alkenylations: removable guidance for twofold C–H activation. Org Chem Front 2017. [DOI: 10.1039/c7qo00134g] [Citation(s) in RCA: 275] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Recent advances in transition-metal catalyzed positional-selective alkenylations via twofold C–H activation directed by removable or traceless directing groups are reviewed.
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Affiliation(s)
- Wenbo Ma
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
| | - Parthasarathy Gandeepan
- Institut für Organische und Biomolekulare Chemie
- Georg-August-Universität Göttingen
- 37077 Göttingen
- Germany
| | - Jie Li
- School of Pharmaceutical Science
- Jiangnan University
- 214122 Wuxi
- P. R. China
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie
- Georg-August-Universität Göttingen
- 37077 Göttingen
- Germany
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61
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Li JS, Chen GQ, Yang Q, Li ZW, Liu CZ, Huang PM. Copper powder-catalyzed chelation-assisted cascade reaction of o-chloroarylacetic acids with amines under solvent- and ligand-free conditions: synthesis of oxindoles. RSC Adv 2017. [DOI: 10.1039/c7ra08123e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Copper powder-catalyzed sequential C–Cl amination/intramolecular N-acylation under solvent- and ligand-free conditions is developed to access oxindoles.
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Affiliation(s)
- Jiang-Sheng Li
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- School of Chemistry and Biological Engineering
- Changsha University of Science & Technology
- Changsha 410114
- P. R. China
| | - Guo-Qin Chen
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- School of Chemistry and Biological Engineering
- Changsha University of Science & Technology
- Changsha 410114
- P. R. China
| | - Qian Yang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- School of Chemistry and Biological Engineering
- Changsha University of Science & Technology
- Changsha 410114
- P. R. China
| | - Zhi-Wei Li
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- School of Chemistry and Biological Engineering
- Changsha University of Science & Technology
- Changsha 410114
- P. R. China
| | - Ci-Zhi Liu
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- School of Chemistry and Biological Engineering
- Changsha University of Science & Technology
- Changsha 410114
- P. R. China
| | - Peng-Mian Huang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- School of Chemistry and Biological Engineering
- Changsha University of Science & Technology
- Changsha 410114
- P. R. China
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62
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Font M, Quibell JM, Perry GJP, Larrosa I. The use of carboxylic acids as traceless directing groups for regioselective C–H bond functionalisation. Chem Commun (Camb) 2017; 53:5584-5597. [DOI: 10.1039/c7cc01755c] [Citation(s) in RCA: 156] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This feature article focuses on the use of carboxylic acids as traceless directing groups and the application of this concept to achieve regiochemical control in organic chemistry.
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Affiliation(s)
- Marc Font
- School of Chemistry
- University of Manchester
- Manchester
- UK
| | | | | | - Igor Larrosa
- School of Chemistry
- University of Manchester
- Manchester
- UK
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63
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Simonetti M, Cannas DM, Larrosa I. Biaryl Synthesis via C–H Bond Activation. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2017. [DOI: 10.1016/bs.adomc.2017.03.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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64
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Nareddy P, Jordan F, Szostak M. Ruthenium(ii)-catalyzed ortho-C–H arylation of diverse N-heterocycles with aryl silanes by exploiting solvent-controlled N-coordination. Org Biomol Chem 2017; 15:4783-4788. [DOI: 10.1039/c7ob00818j] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the first method for the direct, regioselective Ru(ii)-catalyzed oxidative arylation of C–H bonds in diverse N-heterocycles with aryl silanes by exploiting solvent-controlled N-coordination.
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Affiliation(s)
| | - Frank Jordan
- Department of Chemistry
- Rutgers University
- Newark
- USA
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