1
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Song L, Van der Eycken EV. Transition Metal-Catalyzed Intermolecular Cascade C-H Activation/Annulation Processes for the Synthesis of Polycycles. Chemistry 2020; 27:121-144. [PMID: 32530508 DOI: 10.1002/chem.202002110] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Indexed: 12/16/2022]
Abstract
Polycycles are abundantly present in numerous advanced chemicals, functional materials, bioactive molecules and natural products. However, the strategies for the synthesis of polycycles are limited to classical reactions and transition metal-catalyzed cross-coupling reactions, requiring pre-functionalized starting materials and lengthy synthetic operations. The emergence of novel approaches shows great promise for the fields of organic/medicinal/materials chemistry. Among them, transition metal-catalyzed C-H activation followed by intermolecular annulation reactions prevail, due to their straightforward manner with high atom- and step-economy, providing rapid, concise and efficient methods for the construction of diverse polycycles. Several strategies have been developed for the synthesis of polycycles, relying on sequential multiple C-H activation/annulation, or combination of C-H activation/annulation and further interaction with a proximal group, or merger of C-H activation with a cycloaddition reaction, or in situ formation of the directing group. These are attractive, efficient, step- and atom-economic methods starting from commercially available materials. This Minireview will provide an introduction to transition metal-catalyzed C-H activation for the synthesis of polycycles, helping researchers to discover indirect connections and reveal hidden opportunities. It will also promote the discovery of novel synthetic strategies relying on C-H activation.
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Affiliation(s)
- Liangliang Song
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Erik V Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium.,Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya street, Moscow, 117198, Russia
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2
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Liang H, Vasamsetty L, Li T, Jiang J, Pang X, Wang J. A New Class of C 2 -Symmetric Chiral Cyclopentadienyl Ligand Derived from Ferrocene Scaffold: Design, Synthesis and Application. Chemistry 2020; 26:14546-14550. [PMID: 32470226 DOI: 10.1002/chem.202001814] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/13/2020] [Indexed: 12/12/2022]
Abstract
A new class of C2 -symmetric, chiral cyclopentadienyl ligand based on planar chiral ferrocene backbone was developed. A series of its corresponding rhodium(I), iridium(I), and ruthenium(II) complexes were prepared as well. In addition, the rhodium(I) complexes were evaluated in the asymmetric catalytic intramolecular amidoarylation of olefin-tethered benzamides via C-H activation.
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Affiliation(s)
- Hao Liang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of, Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Laxmaiah Vasamsetty
- Key Laboratory of Bioinorganic and Synthetic Chemistry of, Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Teng Li
- Key Laboratory of Bioinorganic and Synthetic Chemistry of, Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Jijun Jiang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of, Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Xingying Pang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of, Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Jun Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of, Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
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3
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Zhang Y, Struwe J, Ackermann L. Rhodiumkatalysierte elektrooxidative C‐H‐Olefinierung von Benzamiden. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005257] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yan Zhang
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstrasse 2 37077 Göttingen Deutschland
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University 321004 Jinhua China
| | - Julia Struwe
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstrasse 2 37077 Göttingen Deutschland
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstrasse 2 37077 Göttingen Deutschland
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4
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Zhang Y, Struwe J, Ackermann L. Rhodium-Catalyzed Electrooxidative C-H Olefination of Benzamides. Angew Chem Int Ed Engl 2020; 59:15076-15080. [PMID: 32347643 PMCID: PMC7496262 DOI: 10.1002/anie.202005257] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Indexed: 12/17/2022]
Abstract
Metal-catalyzed chelation-assisted C-H olefinations have emerged as powerful tools for the construction of functionalized alkenes. Herein, we describe the rhoda-electrocatalyzed C-H activation/alkenylation of arenes. The olefinations of challenging electron-poor benzamides were thus accomplished in a fully dehydrogenative fashion under electrochemical conditions, avoiding stoichiometric chemical oxidants, and with H2 as the only byproduct. This versatile alkenylation reaction also features broad substrate scope and used electricity as a green oxidant.
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Affiliation(s)
- Yan Zhang
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstrasse 237077GöttingenGermany
- Key Laboratory of the Ministry of Education for Advanced Catalysis MaterialsZhejiang Normal University321004JinhuaChina
| | - Julia Struwe
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstrasse 237077GöttingenGermany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstrasse 237077GöttingenGermany
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5
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Kulkarni MR, Gaikwad ND. Recent Advances in Synthesis of 3,4‐Dihydroisoquinolin‐1(2
H
)‐one. ChemistrySelect 2020. [DOI: 10.1002/slct.202002131] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Mahesh R. Kulkarni
- Organic Chemistry Research Centre Department of Chemistry K.R.T. Arts B.H. Commerce and A.M. Science College Gangapur Road Nashik 422 002, MS India
| | - Nitin D. Gaikwad
- Organic Chemistry Research Centre Department of Chemistry K.R.T. Arts B.H. Commerce and A.M. Science College Gangapur Road Nashik 422 002, MS India
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6
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Iridium‐Catalyzed Enantioselective Hydroarylation of Alkenes through C−H bond Activation: Experiment and Computation. Chemistry 2020; 26:8308-8313. [DOI: 10.1002/chem.202001793] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Indexed: 12/16/2022]
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7
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Li G, Liu Q, Vasamsetty L, Guo W, Wang J. Ruthenium(II)‐Catalyzed Asymmetric Inert C−H Bond Activation Assisted by a Chiral Transient Directing Group. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913733] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Guozhu Li
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of EducationSchool of ChemistrySun Yat-Sen University Guangzhou 510275 P. R. China
| | - Qinzhe Liu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of EducationSchool of ChemistrySun Yat-Sen University Guangzhou 510275 P. R. China
| | - Laxmaiah Vasamsetty
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of EducationSchool of ChemistrySun Yat-Sen University Guangzhou 510275 P. R. China
| | - Weicong Guo
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of EducationSchool of ChemistrySun Yat-Sen University Guangzhou 510275 P. R. China
| | - Jun Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of EducationSchool of ChemistrySun Yat-Sen University Guangzhou 510275 P. R. China
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8
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Li G, Liu Q, Vasamsetty L, Guo W, Wang J. Ruthenium(II)‐Catalyzed Asymmetric Inert C−H Bond Activation Assisted by a Chiral Transient Directing Group. Angew Chem Int Ed Engl 2020; 59:3475-3479. [DOI: 10.1002/anie.201913733] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Guozhu Li
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of EducationSchool of ChemistrySun Yat-Sen University Guangzhou 510275 P. R. China
| | - Qinzhe Liu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of EducationSchool of ChemistrySun Yat-Sen University Guangzhou 510275 P. R. China
| | - Laxmaiah Vasamsetty
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of EducationSchool of ChemistrySun Yat-Sen University Guangzhou 510275 P. R. China
| | - Weicong Guo
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of EducationSchool of ChemistrySun Yat-Sen University Guangzhou 510275 P. R. China
| | - Jun Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of EducationSchool of ChemistrySun Yat-Sen University Guangzhou 510275 P. R. China
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9
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Santhoshkumar R, Cheng CH. Reaching Green: Heterocycle Synthesis by Transition Metal-Catalyzed C-H Functionalization in Sustainable Medium. Chemistry 2019; 25:9366-9384. [PMID: 31116458 DOI: 10.1002/chem.201901026] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/26/2019] [Indexed: 01/18/2023]
Abstract
Catalytic C-H functionalization has emerged as an efficient alternative to traditional coupling reactions. However, some of these reactions depend on environmentally harmful solvents, weakening the overall green nature of these methods. As organic processes consume large amount of solvents, the use of less harmful solvents enhance the sustainability of these reactions. Herein, we present an overview of transition metal-catalyzed C-H functionalization reactions for the synthesis of heterocycles in sustainable solvents based on CHEM21 solvent selection guide.
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Affiliation(s)
| | - Chien-Hong Cheng
- Department of Chemistry, National Tsing Hua University, Hsinchu, 30013, Taiwan
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10
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Rej S, Chatani N. Rhodiumkatalysierte sp 2‐ und sp 3‐C‐H‐Funktionalisierungen mit entfernbaren dirigierenden Gruppen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201808159] [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]
Affiliation(s)
- Supriya Rej
- Department of Applied ChemistryFaculty of EngineeringOsaka University, Suita Osaka 565-0871 Japan
| | - Naoto Chatani
- Department of Applied ChemistryFaculty of EngineeringOsaka University, Suita Osaka 565-0871 Japan
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11
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Rej S, Chatani N. Rhodium-Catalyzed C(sp 2 )- or C(sp 3 )-H Bond Functionalization Assisted by Removable Directing Groups. Angew Chem Int Ed Engl 2019; 58:8304-8329. [PMID: 30311719 DOI: 10.1002/anie.201808159] [Citation(s) in RCA: 263] [Impact Index Per Article: 52.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 10/12/2018] [Indexed: 12/25/2022]
Abstract
In recent years, transition-metal-catalyzed C-H activation has become a key strategy in the field of organic synthesis. Rhodium complexes are widely used as catalysts in a variety of C-H functionalization reactions because of their high reactivity and selectivity. The availability of a number of rhodium complexes in various oxidation states enables diverse reaction patterns to be obtained. Regioselectivity, an important issue in C-H activation chemistry, can be accomplished by using a directing group to assist the reaction. However, to obtain the target functionalized compounds, it is also necessary to use a directing group that can be easily removed. A wide range of directed C-H functionalization reactions catalyzed by rhodium complexes have been reported to date. In this Review, we discuss Rh-catalyzed C-H functionalization reactions that are aided by the use of a removable directing group such as phenol, amine, aldehyde, ketones, ester, acid, sulfonic acid, and N-heteroaromatic derivatives.
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Affiliation(s)
- Supriya Rej
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
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12
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Enantioselective Cobalt(III)‐Catalyzed C−H Activation Enabled by Chiral Carboxylic Acid Cooperation. Angew Chem Int Ed Engl 2018; 57:15425-15429. [DOI: 10.1002/anie.201808595] [Citation(s) in RCA: 131] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 09/16/2018] [Indexed: 11/07/2022]
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13
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Pesciaioli F, Dhawa U, Oliveira JCA, Yin R, John M, Ackermann L. Enantioselective Cobalt(III)‐Catalyzed C−H Activation Enabled by Chiral Carboxylic Acid Cooperation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808595] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Fabio Pesciaioli
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Uttam Dhawa
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - João C. A. Oliveira
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Rongxin Yin
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Michael John
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
- Department of ChemistryUniversity of Pavia Viale Taramelli, 10 27100 Pavia Italy
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14
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Wang SM, Moku B, Leng J, Qin HL. Rh-Catalyzed Carboxylates Directed C-H Activation for the Synthesis of ortho
-Carboxylic 2-Arylethenesulfonyl Fluorides: Access to Unique Electrophiles for SuFEx Click Chemistry. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800762] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shi-Meng Wang
- School of Chemistry; Chemical Engineering and Life Science; and State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; 205 Luoshi Road 430070 Wuhan China
| | - Balakrishna Moku
- School of Chemistry; Chemical Engineering and Life Science; and State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; 205 Luoshi Road 430070 Wuhan China
| | - Jing Leng
- School of Chemistry; Chemical Engineering and Life Science; and State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; 205 Luoshi Road 430070 Wuhan China
| | - Hua-Li Qin
- School of Chemistry; Chemical Engineering and Life Science; and State Key Laboratory of Silicate Materials for Architectures; Wuhan University of Technology; 205 Luoshi Road 430070 Wuhan China
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15
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Li Y, Xu S. Transition-Metal-Catalyzed C−H Functionalization for Construction of Quaternary Carbon Centers. Chemistry 2018; 24:16218-16245. [DOI: 10.1002/chem.201800921] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 04/19/2018] [Indexed: 01/10/2023]
Affiliation(s)
- Yang Li
- Department of Chemistry; School of Science and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry; Xi'an Jiaotong University; Xi'an 710049 P.R. China
| | - Silong Xu
- Department of Chemistry; School of Science and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry; Xi'an Jiaotong University; Xi'an 710049 P.R. China
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16
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Kawai K, Bunno Y, Yoshino T, Matsunaga S. Weinreb Amide Directed Versatile C-H Bond Functionalization under (η 5 -Pentamethylcyclopentadienyl)cobalt(III) Catalysis. Chemistry 2018; 24:10231-10237. [PMID: 29732683 DOI: 10.1002/chem.201801750] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Indexed: 01/24/2023]
Abstract
The (η5 -pentamethylcyclopentadienyl)cobalt(III) (Cp*CoIII )-catalyzed C-H bond functionalization of aromatic, heteroaromatic, and α,β-unsaturated Weinreb amides was explored. C-H allylation reactions with the use of allyl carbonate and a perfluoroalkene, oxidative alkenylation reactions with the use of ethyl acrylate, iodination reactions with the use of N-iodosuccinimide, and amidation reactions with the use of dioxazolones were catalyzed by Cp*Co(CO)I2 in the presence of a cationic Ag salt and AgOAc to afford various synthetically useful building blocks. Mechanistic studies of the C-H allylation disclosed that the C-H activation step was rate determining and virtually irreversible.
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Affiliation(s)
- Kentaro Kawai
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo, 060-0812, Japan
| | - Youka Bunno
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo, 060-0812, Japan
| | - Tatsuhiko Yoshino
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo, 060-0812, Japan
| | - Shigeki Matsunaga
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo, 060-0812, Japan
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17
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Mukherjee K, Ramesh E, Ghosh K, Sahoo AK. Ruthenium-Catalyzed Intramolecular Hydroarylation of Arenes with Olefins in Water. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800241] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - E. Ramesh
- School of Chemistry; University of Hyderabad; Hyderabad India
| | - Koushik Ghosh
- School of Chemistry; University of Hyderabad; Hyderabad India
| | - Akhila K. Sahoo
- School of Chemistry; University of Hyderabad; Hyderabad India
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18
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Peneau A, Guillou C, Chabaud L. Recent Advances in [Cp*MIII
] (M = Co, Rh, Ir)-Catalyzed Intramolecular Annulation Through C-H Activation. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800298] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Augustin Peneau
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301; Univ Paris-Sud, Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Catherine Guillou
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301; Univ Paris-Sud, Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Laurent Chabaud
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301; Univ Paris-Sud, Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
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19
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Zhang G, Jia F, Gooßen LJ. Regioselective C−H Alkylation via Carboxylate‐Directed Hydroarylation in Water. Chemistry 2018; 24:4537-4541. [DOI: 10.1002/chem.201800757] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Guodong Zhang
- Evonic Chair of Organic ChemistryRuhr-Universität Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Fan Jia
- Evonic Chair of Organic ChemistryRuhr-Universität Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Lukas J. Gooßen
- Evonic Chair of Organic ChemistryRuhr-Universität Bochum Universitätsstr. 150 44801 Bochum Germany
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20
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Fernández DF, Gulías M, Mascareñas JL, López F. Iridium(I)-Catalyzed Intramolecular Hydrocarbonation of Alkenes: Efficient Access to Cyclic Systems Bearing Quaternary Stereocenters. Angew Chem Int Ed Engl 2017. [PMID: 28632957 DOI: 10.1002/anie.201705105] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A catalytic, versatile and atom-economical C-H functionalization process that provides a wide variety of cyclic systems featuring methyl-substituted quaternary stereocenters is described. The method relies on the use of a cationic IrI -bisphosphine catalyst, which promotes a carboxamide-assisted activation of an olefinic C(sp2 )-H bond followed by exo-cyclization to a tethered 1,1-disubstituted alkene. The extension of the method to aromatic and heteroaromatic C-H bonds, as well as developments on an enantioselective variant, are also described.
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Affiliation(s)
- David F Fernández
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - José L Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Fernando López
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain.,Instituto de Química Orgánica General (CSIC), Spain
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21
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Fernández DF, Gulías M, Mascareñas JL, López F. Iridium(I)-Catalyzed Intramolecular Hydrocarbonation of Alkenes: Efficient Access to Cyclic Systems Bearing Quaternary Stereocenters. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705105] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- David F. Fernández
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - José L. Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - Fernando López
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
- Instituto de Química Orgánica General (CSIC); Spain
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22
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Zhou X, Pan Y, Li X. Catalyst-Controlled Regiodivergent Alkyne Insertion in the Context of C−H Activation and Diels-Alder Reactions: Synthesis of Fused and Bridged Cycles. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704036] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xukai Zhou
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Yupeng Pan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
| | - Xingwei Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
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23
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Zhou X, Pan Y, Li X. Catalyst-Controlled Regiodivergent Alkyne Insertion in the Context of C−H Activation and Diels-Alder Reactions: Synthesis of Fused and Bridged Cycles. Angew Chem Int Ed Engl 2017; 56:8163-8167. [DOI: 10.1002/anie.201704036] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Indexed: 12/17/2022]
Affiliation(s)
- Xukai Zhou
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Yupeng Pan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
| | - Xingwei Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
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24
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Li Y, Tang Y, He X, Shi D, Wu J, Xu S. Rhodium(III)-Catalyzed Annulative Carbooxygenation of 1,1-Disubstituted Alkenes Triggered by C−H Activation. Chemistry 2017; 23:7453-7457. [DOI: 10.1002/chem.201701703] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Yang Li
- Department of Chemistry, School of Science; Xi'an Jiaotong University; Xi'an 710049 P. R. China
| | - Yuhai Tang
- Department of Chemistry, School of Science; Xi'an Jiaotong University; Xi'an 710049 P. R. China
| | - Xin He
- Department of Medicinal Chemistry, School of Pharmacy; Xi'an Jiaotong University; Xi'an 710049 P. R. China
| | - Dandan Shi
- Department of Chemistry, School of Science; Xi'an Jiaotong University; Xi'an 710049 P. R. China
| | - Jun Wu
- Department of Chemistry, School of Science; Xi'an Jiaotong University; Xi'an 710049 P. R. China
| | - Silong Xu
- Department of Chemistry, School of Science; Xi'an Jiaotong University; Xi'an 710049 P. R. China
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25
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Youn SW, Yoo HJ. One-Pot Sequential N-Heterocyclic Carbene/Rhodium(III) Catalysis: Synthesis of Fused Polycyclic Isocoumarins. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700072] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- So Won Youn
- Center for New Directions in Organic Synthesis, Department of Chemistry and Institute for Material Design; Hanyang University; Seoul 04763 Korea
| | - Huen Ji Yoo
- Center for New Directions in Organic Synthesis, Department of Chemistry and Institute for Material Design; Hanyang University; Seoul 04763 Korea
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26
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Ji C, Xu Q, Shi M. Rhodium(III)-Catalyzed Controllable C−H Bond Functionalization of Benzamides and Vinylidenecyclopropanes: A Directing Group Determined Reaction Pathway. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601308] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Cheng Ji
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Mei Long Road Shanghai 200237 People's Republic of China
| | - Qin Xu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Mei Long Road Shanghai 200237 People's Republic of China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Mei Long Road Shanghai 200237 People's Republic of China
- State Key Laboratory and Institute of Elemento-organic Chemistry; Nankai University; Tianjin 300071 People's Republic of China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 354 Fenglin Lu Shanghai 200032 People's Republic of China
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27
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Zhu RY, Farmer ME, Chen YQ, Yu JQ. A Simple and Versatile Amide Directing Group for C-H Functionalizations. Angew Chem Int Ed Engl 2016; 55:10578-99. [PMID: 27479708 PMCID: PMC5518755 DOI: 10.1002/anie.201600791] [Citation(s) in RCA: 490] [Impact Index Per Article: 61.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Indexed: 01/12/2023]
Abstract
Achieving selective C-H activation at a single and strategic site in the presence of multiple C-H bonds can provide a powerful and generally useful retrosynthetic disconnection. In this context, a directing group serves as a compass to guide the transition metal to C-H bonds by using distance and geometry as powerful recognition parameters to distinguish between proximal and distal C-H bonds. However, the installation and removal of directing groups is a practical drawback. To improve the utility of this approach, one can seek solutions in three directions: 1) Simplifying the directing group, 2) using common functional groups or protecting groups as directing groups, and 3) attaching the directing group to substrates via a transient covalent bond to render the directing group catalytic. This Review describes the rational development of an extremely simple and yet broadly applicable directing group for Pd(II) , Rh(III) , and Ru(II) catalysts, namely the N-methoxy amide (CONHOMe) moiety. Through collective efforts in the community, a wide range of C-H activation transformations using this type of simple directing group have been developed.
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Affiliation(s)
- Ru-Yi Zhu
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Marcus E Farmer
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Yan-Qiao Chen
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA.
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28
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Zhu R, Farmer ME, Chen Y, Yu J. Eine einfache und vielseitige dirigierende Amidgruppe zur Funktionalisierung von C‐H‐Bindungen. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600791] [Citation(s) in RCA: 126] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ru‐Yi Zhu
- Department of Chemistry The Scripps Research Institute (TSRI) 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Marcus E. Farmer
- Department of Chemistry The Scripps Research Institute (TSRI) 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Yan‐Qiao Chen
- Department of Chemistry The Scripps Research Institute (TSRI) 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Jin‐Quan Yu
- Department of Chemistry The Scripps Research Institute (TSRI) 10550 N. Torrey Pines Road La Jolla CA 92037 USA
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29
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Gulías M, Mascareñas JL. Metallkatalysierte Anellierungen durch Aktivierung und Spaltung von C-H-Bindungen. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201511567] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) und Departamento de Química Orgánica, 15782; Universidade de Santiago de Compostela; Spanien
| | - José Luis Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) und Departamento de Química Orgánica, 15782; Universidade de Santiago de Compostela; Spanien
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30
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Gulías M, Mascareñas JL. Metal-Catalyzed Annulations through Activation and Cleavage of C−H Bonds. Angew Chem Int Ed Engl 2016; 55:11000-19. [DOI: 10.1002/anie.201511567] [Citation(s) in RCA: 406] [Impact Index Per Article: 50.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 02/17/2016] [Indexed: 12/27/2022]
Affiliation(s)
- Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, 15782; Universidade de Santiago de Compostela; Spain
| | - José Luis Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, 15782; Universidade de Santiago de Compostela; Spain
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31
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Non-coordinating-Anion-Directed Reversal of Activation Site: Selective C−H Bond Activation ofN-Aryl Rings. Chemistry 2016; 22:8663-8. [DOI: 10.1002/chem.201600293] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Indexed: 11/07/2022]
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32
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Li SS, Lin H, Liu CF, Xia YQ, Zhang XM, Dong L. Rhodium-Catalyzed Tandem Annulation Reactions of 7-Azaindoles with Electron-Deficient OlefinsviaDouble CH Activation. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600112] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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33
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Ghosh K, Rit RK, Ramesh E, Sahoo AK. Ruthenium-Catalyzed Hydroarylation and One-Pot Twofold Unsymmetrical C−H Functionalization of Arenes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600649] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Koushik Ghosh
- School of Chemistry; University of Hyderabad; Gachibowli Hyderabad, Telangana 500046 India
| | - Raja K. Rit
- School of Chemistry; University of Hyderabad; Gachibowli Hyderabad, Telangana 500046 India
| | - E. Ramesh
- School of Chemistry; University of Hyderabad; Gachibowli Hyderabad, Telangana 500046 India
| | - Akhila K. Sahoo
- School of Chemistry; University of Hyderabad; Gachibowli Hyderabad, Telangana 500046 India
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34
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Ghosh K, Rit RK, Ramesh E, Sahoo AK. Ruthenium-Catalyzed Hydroarylation and One-Pot Twofold Unsymmetrical C−H Functionalization of Arenes. Angew Chem Int Ed Engl 2016; 55:7821-5. [DOI: 10.1002/anie.201600649] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Indexed: 01/17/2023]
Affiliation(s)
- Koushik Ghosh
- School of Chemistry; University of Hyderabad; Gachibowli Hyderabad, Telangana 500046 India
| | - Raja K. Rit
- School of Chemistry; University of Hyderabad; Gachibowli Hyderabad, Telangana 500046 India
| | - E. Ramesh
- School of Chemistry; University of Hyderabad; Gachibowli Hyderabad, Telangana 500046 India
| | - Akhila K. Sahoo
- School of Chemistry; University of Hyderabad; Gachibowli Hyderabad, Telangana 500046 India
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35
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Jayakumar J, Cheng CH. Direct Synthesis of Protoberberine Alkaloids by Rh-Catalyzed C-H Bond Activation as the Key Step. Chemistry 2015; 22:1800-4. [PMID: 26689172 DOI: 10.1002/chem.201504378] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Indexed: 11/05/2022]
Abstract
A one-pot reaction of substituted benzaldehydes with alkyne-amines by a Rh-catalyzed C-H activation and annulation to afford various natural and unnatural protoberberine alkaloids is reported. This reaction provides a convenient route for the generation of a compound library of protoberberine salts, which recently have attracted great attention because of their diverse biological activities. In addition, pyridinium salt derivatives can also be formed in good yields from α,β-unsaturated aldehydes and amino-alkynes. This reaction proceeds with excellent regioselectivity and good functional group compatibility under mild reaction conditions by using O2 as the oxidant.
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Affiliation(s)
| | - Chien-Hong Cheng
- Department of Chemistry, National Tsing Hua University, Hsinchu, 30013, Taiwan), Fax.
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36
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Chabaud L, Raynal Q, Barre E, Guillou C. Rhodium(III)-Catalyzed Synthesis of Aryl Spirocycles by Aromatic CH Activation/Intramolecular Heck-Type Reaction. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500768] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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37
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Su B, Wei JB, Wu WL, Shi ZJ. Diversity-Oriented Synthesis through Rh-Catalyzed Selective Transformations of a Novel Multirole Directing Group. ChemCatChem 2015. [DOI: 10.1002/cctc.201500410] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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38
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Maity S, Agasti S, Earsad AM, Hazra A, Maiti D. Nickel-Catalyzed Insertion of Alkynes and Electron-Deficient Olefins into Unactivated sp(3) C-H Bonds. Chemistry 2015; 21:11320-4. [PMID: 26121618 DOI: 10.1002/chem.201501962] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Indexed: 11/08/2022]
Abstract
Insertion of unsaturated systems such as alkynes and olefins into unactivated sp(3) C-H bonds remains an unexplored problem. We herein address this issue by successfully incorporating a wide variety of functionalized alkynes and electron-deficient olefins into the unactivated sp(3) C-H bond of pivalic acid derivatives with excellent syn- and linear- selectivity. A strongly chelating 8-aminoquinoline directing group proved beneficial for these insertion reactions, while an air-stable and inexpensive Ni(II) salt has been employed as the active catalyst.
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Affiliation(s)
- Soham Maity
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076 (India)
| | - Soumitra Agasti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076 (India)
| | - Arif Mahammad Earsad
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076 (India)
| | - Avijit Hazra
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076 (India)
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076 (India).
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39
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Wodrich MD, Ye B, Gonthier JF, Corminboeuf C, Cramer N. Ligand-Controlled Regiodivergent Pathways of Rhodium(III)-Catalyzed Dihydroisoquinolone Synthesis: Experimental and Computational Studies of Different Cyclopentadienyl Ligands. Chemistry 2014; 20:15409-18. [DOI: 10.1002/chem.201404515] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Indexed: 01/05/2023]
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40
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Rhodium(III)-Catalyzed Intramolecular Redox-Neutral Annulation of Tethered Alkynes: Formal Total Synthesis of (±)-Goniomitine. Chemistry 2014; 20:12768-72. [DOI: 10.1002/chem.201403973] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Indexed: 11/07/2022]
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41
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Yu DG, de Azambuja F, Gensch T, Daniliuc CG, Glorius F. The C-H activation/1,3-diyne strategy: highly selective direct synthesis of diverse bisheterocycles by Rh(III) catalysis. Angew Chem Int Ed Engl 2014; 53:9650-4. [PMID: 24986535 DOI: 10.1002/anie.201403782] [Citation(s) in RCA: 152] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Indexed: 11/05/2022]
Abstract
The reactivity and selectivity of 1,3-diynes in transition-metal-catalyzed CH activation is exploited to quickly assemble diverse polysubstituted bisheterocycles, which are highly important but difficult to access. By using the CH activation/1,3-diyne strategy, we overcame the challenges of selectivity (chemo-, regio-, and mono-/diannulation) and constructed seven kinds of adjacent bisheterocycles through the formation of four strategic bonds with high efficiency and high selectivity.
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Affiliation(s)
- Da-Gang Yu
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstrasse 40, 48149 Münster (Germany) http://www.uni-muenster.de/Chemie.oc/glorius/
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42
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Yu DG, de Azambuja F, Gensch T, Daniliuc CG, Glorius F. Die C-H-Aktivierungs/1,3-Diin-Strategie: hochselektive direkte Synthese vielfältiger Bisheterocyclen mithilfe von RhIII-Katalyse. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403782] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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43
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Yu DG, de Azambuja F, Glorius F. α-MsO/TsO/Cl Ketones as Oxidized Alkyne Equivalents: Redox-Neutral Rhodium(III)-Catalyzed CH Activation for the Synthesis of N-Heterocycles. Angew Chem Int Ed Engl 2014; 53:2754-8. [DOI: 10.1002/anie.201310272] [Citation(s) in RCA: 141] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Indexed: 11/11/2022]
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44
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Yu DG, de Azambuja F, Glorius F. α-MsO/TsO/Cl-Ketone als oxidierte Alkin-Äquivalente: redoxneutrale Rhodium(III)-katalysierte C-H-Aktivierung zur Synthese von N-Heterocyclen. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310272] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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