201
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Reddy MC, Jeganmohan M. Ruthenium-Catalyzed Selective Aerobic Oxidativeortho-Alkenylation of Substituted Phenols with Alkenes through C-H Bond Activation. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201463] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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202
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Lian Y, Huber T, Hesp KD, Bergman RG, Ellman JA. Rhodium(III)-catalyzed alkenyl C-H bond functionalization: convergent synthesis of furans and pyrroles. Angew Chem Int Ed Engl 2013; 52:629-33. [PMID: 23172703 PMCID: PMC3770945 DOI: 10.1002/anie.201207995] [Citation(s) in RCA: 158] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Indexed: 11/10/2022]
Abstract
Ring in the new: a new annulation for the efficient synthesis of substituted furans and pyrroles is reported. The Rh(III) -catalyzed reaction of O-methyl α,β-unsaturated oximes with aldehydes and N-tosyl imines affords secondary alcohol and amine intermediates, respectively. Cyclization and aromatization occurs under the reaction conditions to provide access to biologically relevant furans and pyrroles in good yields. Cp*=C(5)Me(5), DCE=1,2-dichloroethane, THF=tetrahydrofuran.
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Affiliation(s)
- Yajing Lian
- Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT 06520 (USA)
| | - Tatjana Huber
- Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT 06520 (USA)
| | - Kevin D. Hesp
- Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT 06520 (USA)
| | - Robert G. Bergman
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720-1416 (USA), Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 (USA)
| | - Jonathan A. Ellman
- Department of Chemistry, Yale University, 225 Prospect St., New Haven, CT 06520 (USA)
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203
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Hu S, Wang D, Liu J, Li X. Rhodium(iii)-catalyzed oxidative olefination of N-allyl sulfonamides. Org Biomol Chem 2013; 11:2761-5. [DOI: 10.1039/c3ob40272j] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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204
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Kozhushkov SI, Ackermann L. Ruthenium-catalyzed direct oxidative alkenylation of arenes through twofold C–H bond functionalization. Chem Sci 2013. [DOI: 10.1039/c2sc21524a] [Citation(s) in RCA: 541] [Impact Index Per Article: 49.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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205
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Chary BC, Kim S. Rhodium(iii)-catalyzed ortho-olefination of aryl phosphonates. Org Biomol Chem 2013; 11:6879-82. [DOI: 10.1039/c3ob41548a] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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206
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Huang L, Wang Q, Qi J, Wu X, Huang K, Jiang H. Rh(iii)-catalyzed ortho-oxidative alkylation of unactivated arenes with allylic alcohols. Chem Sci 2013. [DOI: 10.1039/c3sc50630d] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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207
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Cong X, You J, Gao G, Lan J. 2-Pyridylmethyl ether: a readily removable and efficient directing group for amino acidligand accelerated ortho-C–H olefination of phenols. Chem Commun (Camb) 2013; 49:662-4. [DOI: 10.1039/c2cc37291f] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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208
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Dong Y, Liu G. Rh-catalyzed sulfonic acid group directed ortho C–H olefination of arenes. Chem Commun (Camb) 2013; 49:8066-8. [DOI: 10.1039/c3cc44690e] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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209
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Reddy VP, Iwasaki T, Kambe N. Synthesis of imidazo and benzimidazo[2,1-a]isoquinolines by rhodium-catalyzed intramolecular double C–H bond activation. Org Biomol Chem 2013; 11:2249-53. [DOI: 10.1039/c3ob27396b] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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210
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Mo J, Lim S, Park S, Ryu T, Kim S, Lee PH. Oxidative ortho-alkenylation of arylphosphine oxides by rhodium-catalyzed C–H bond twofold cleavage. RSC Adv 2013. [DOI: 10.1039/c3ra43764g] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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211
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Park S, Seo B, Shin S, Son JY, Lee PH. Rhodium-catalyzed oxidative coupling through C–H activation and annulation directed by phosphonamide and phosphinamide groups. Chem Commun (Camb) 2013; 49:8671-3. [DOI: 10.1039/c3cc44995e] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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212
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Hashimoto Y, Hirano K, Satoh T, Kakiuchi F, Miura M. Regioselective C–H Bond Cleavage/Alkyne Insertion under Ruthenium Catalysis. J Org Chem 2012; 78:638-46. [DOI: 10.1021/jo3025237] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Yuto Hashimoto
- Department of Applied Chemistry,
Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry,
Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Tetsuya Satoh
- Department of Applied Chemistry,
Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- JST, ACT-C, 4-1-8 Honcho, Kawaguchi, Saitama
332-0012, Japan
| | - Fumitoshi Kakiuchi
- JST, ACT-C, 4-1-8 Honcho, Kawaguchi, Saitama
332-0012, Japan
- Department
of Chemistry, Faculty
of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Masahiro Miura
- Department of Applied Chemistry,
Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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213
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Liu B, Fan Y, Gao Y, Sun C, Xu C, Zhu J. Rhodium(III)-Catalyzed N-Nitroso-Directed C–H Olefination of Arenes. High-Yield, Versatile Coupling under Mild Conditions. J Am Chem Soc 2012; 135:468-73. [DOI: 10.1021/ja3099245] [Citation(s) in RCA: 208] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Baoqing Liu
- Department
of Polymer Science and Engineering, School
of Chemistry and Chemical Engineering, State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China
| | - Yang Fan
- Department
of Polymer Science and Engineering, School
of Chemistry and Chemical Engineering, State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China
| | - Yang Gao
- Department
of Polymer Science and Engineering, School
of Chemistry and Chemical Engineering, State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China
| | - Chao Sun
- Department
of Polymer Science and Engineering, School
of Chemistry and Chemical Engineering, State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China
| | - Cheng Xu
- Department
of Polymer Science and Engineering, School
of Chemistry and Chemical Engineering, State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China
| | - Jin Zhu
- Department
of Polymer Science and Engineering, School
of Chemistry and Chemical Engineering, State Key Laboratory of Coordination
Chemistry, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China
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214
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Neely JM, Rovis T. Rh(III)-catalyzed regioselective synthesis of pyridines from alkenes and α,β-unsaturated oxime esters. J Am Chem Soc 2012; 135:66-9. [PMID: 23244023 DOI: 10.1021/ja3104389] [Citation(s) in RCA: 296] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
α,β-Unsaturated O-pivaloyl oximes are coupled to alkenes by Rh(III) catalysis to afford substituted pyridines. The reaction with activated alkenes is exceptionally regioselective and high-yielding. Mechanistic studies suggest that heterocycle formation proceeds via reversible C-H activation, alkene insertion, and a C-N bond formation/N-O bond cleavage process.
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Affiliation(s)
- Jamie M Neely
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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215
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Li G, Leow D, Wan L, Yu JQ. Ether-Directedortho-C-H Olefination with a Palladium(II)/Monoprotected Amino Acid Catalyst. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201207770] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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216
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Dong J, Long Z, Song F, Wu N, Guo Q, Lan J, You J. Rhodium or Ruthenium-Catalyzed Oxidative CH/CH Cross-Coupling: Direct Access to Extended π-Conjugated Systems. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201207196] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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217
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Rhodium or Ruthenium-Catalyzed Oxidative CH/CH Cross-Coupling: Direct Access to Extended π-Conjugated Systems. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/anie.201207196] [Citation(s) in RCA: 174] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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218
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Lian Y, Huber T, Hesp KD, Bergman RG, Ellman JA. Rhodium(III)-Catalyzed Alkenyl CH Bond Functionalization: Convergent Synthesis of Furans and Pyrroles. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201207995] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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219
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Karthikeyan J, Haridharan R, Cheng CH. Rhodium(III)-catalyzed oxidative C-H coupling of N-methoxybenzamides with aryl boronic acids: one-pot synthesis of phenanthridinones. Angew Chem Int Ed Engl 2012; 51:12343-7. [PMID: 23109275 DOI: 10.1002/anie.201206890] [Citation(s) in RCA: 154] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2012] [Indexed: 11/08/2022]
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220
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Karthikeyan J, Haridharan R, Cheng CH. Rhodium(III)-Catalyzed Oxidative CH Coupling ofN-Methoxybenzamides with Aryl Boronic Acids: One-Pot Synthesis of Phenanthridinones. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206890] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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221
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Zhen W, Wang F, Zhao M, Du Z, Li X. Rhodium(III)-Catalyzed Oxidative CH Functionalization of Azomethine Ylides. Angew Chem Int Ed Engl 2012; 51:11819-23. [DOI: 10.1002/anie.201207204] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Indexed: 11/06/2022]
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222
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Zhen W, Wang F, Zhao M, Du Z, Li X. Rhodium(III)-Catalyzed Oxidative CH Functionalization of Azomethine Ylides. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201207204] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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223
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Zhang XS, Li Y, Li H, Chen K, Lei ZQ, Shi ZJ. Rh-Catalyzed CC Cleavage of Benzyl/Allylic Alcohols to Produce Benzyl/Allylic Amines or other Alcohols by Nucleophilic Addition of Intermediate Rhodacycles to Aldehydes and Imines. Chemistry 2012; 18:16214-25. [DOI: 10.1002/chem.201201867] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Revised: 08/09/2012] [Indexed: 11/11/2022]
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224
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Pham MV, Ye B, Cramer N. Access to Sultams by Rhodium(III)-Catalyzed Directed CH Activation. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206191] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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225
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Pham MV, Ye B, Cramer N. Access to sultams by rhodium(III)-catalyzed directed C-H activation. Angew Chem Int Ed Engl 2012; 51:10610-4. [PMID: 23002028 DOI: 10.1002/anie.201206191] [Citation(s) in RCA: 193] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Indexed: 11/11/2022]
Abstract
Director's cut: The pharmaceutically relevant sulfonamide group is shown to be a competent directing group for [Cp*Rh(OAc)(2)]-catalyzed C-H functionalizations. Reactions of the cyclometalated intermediate with internal alkynes provide access to a wide range of sultam derivatives. The reaction is high yielding and works best under aerobic conditions with catalytic amounts of CuOAc as an oxidation mediator. Cp* = C(5)Me(5).
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Affiliation(s)
- Manh V Pham
- Laboratory of Asymmetric Catalysis and Synthesis, EPFL SB ISIC LCSA, BCH 4305, CH-1015 Lausanne, Switzerland
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226
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Chan WW, Lo SF, Zhou Z, Yu WY. Rh-Catalyzed Intermolecular Carbenoid Functionalization of Aromatic C–H Bonds by α-Diazomalonates. J Am Chem Soc 2012; 134:13565-8. [DOI: 10.1021/ja305771y] [Citation(s) in RCA: 428] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Wai-Wing Chan
- State Key Laboratory for
Chirosciences and Department
of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong
Kong
| | - Siu-Fung Lo
- State Key Laboratory for
Chirosciences and Department
of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong
Kong
| | - Zhongyuan Zhou
- State Key Laboratory for
Chirosciences and Department
of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong
Kong
| | - Wing-Yiu Yu
- State Key Laboratory for
Chirosciences and Department
of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong
Kong
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227
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Zhao P, Niu R, Wang F, Han K, Li X. Rhodium(III)- and ruthenium(II)-catalyzed olefination of isoquinolones. Org Lett 2012; 14:4166-9. [PMID: 22849653 DOI: 10.1021/ol3018352] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
NH and N-protected isoquinolones undergo Rh(III)-catalyzed oxidative olefination at the 8-position. Complementary redox-neutral olefination of such isoquinolones using internal alkynes was achieved under ruthenium catalysis.
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Affiliation(s)
- Peng Zhao
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China
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228
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Graczyk K, Ma W, Ackermann L. Oxidative Alkenylation of Aromatic Esters by Ruthenium-Catalyzed Twofold C–H Bond Cleavages. Org Lett 2012; 14:4110-3. [DOI: 10.1021/ol301759v] [Citation(s) in RCA: 126] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Karolina Graczyk
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität, Tammannstrasse 2, 37077 Göttingen, Germany
| | - Wenbo Ma
- 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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229
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Kuhl N, Hopkinson MN, Glorius F. Selektive Rhodium(III)-katalysierte gekreuzte dehydrierende Kupplung von Furan- und Thiophenderivaten. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201203792] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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230
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Kuhl N, Hopkinson MN, Glorius F. Selective Rhodium(III)-Catalyzed Cross-Dehydrogenative Coupling of Furan and Thiophene Derivatives. Angew Chem Int Ed Engl 2012; 51:8230-4. [DOI: 10.1002/anie.201203792] [Citation(s) in RCA: 174] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Indexed: 11/05/2022]
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231
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Palladium-catalyzed oxidative alkynylation of arene C–H bond using the chelation-assisted strategy. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.04.003] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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232
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Shi Z, Schröder N, Glorius F. Rhodium(III)-Catalyzed Dehydrogenative Heck Reaction of Salicylaldehydes. Angew Chem Int Ed Engl 2012; 51:8092-6. [DOI: 10.1002/anie.201203224] [Citation(s) in RCA: 152] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Indexed: 11/07/2022]
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233
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Activation of remote meta-C-H bonds assisted by an end-on template. Nature 2012; 486:518-22. [PMID: 22739317 DOI: 10.1038/nature11158] [Citation(s) in RCA: 704] [Impact Index Per Article: 58.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Accepted: 04/20/2012] [Indexed: 12/23/2022]
Abstract
Functionalization of unactivated carbon-hydrogen (C-H) single bonds is an efficient strategy for rapid generation of complex molecules from simpler ones. However, it is difficult to achieve selectivity when multiple inequivalent C-H bonds are present in the target molecule. The usual approach is to use σ-chelating directing groups, which lead to ortho-selectivity through the formation of a conformationally rigid six- or seven-membered cyclic pre-transition state. Despite the broad utility of this approach, proximity-driven reactivity prevents the activation of remote C-H bonds. Here we report a class of easily removable nitrile-containing templates that direct the activation of distal meta-C-H bonds (more than ten bonds away) of a tethered arene. We attribute this new mode of C-H activation to a weak 'end-on' interaction between the linear nitrile group and the metal centre. The 'end-on' coordination geometry relieves the strain of the cyclophane-like pre-transition state of the meta-C-H activation event. In addition, this template overrides the intrinsic electronic and steric biases as well as ortho-directing effects with two broadly useful classes of arene substrates (toluene derivatives and hydrocinnamic acids).
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234
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Wang C, Chen H, Wang Z, Chen J, Huang Y. Rhodium(III)-Catalyzed CH Activation of Arenes Using a Versatile and Removable Triazene Directing Group. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201203230] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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235
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Wang C, Chen H, Wang Z, Chen J, Huang Y. Rhodium(III)-Catalyzed CH Activation of Arenes Using a Versatile and Removable Triazene Directing Group. Angew Chem Int Ed Engl 2012; 51:7242-5. [DOI: 10.1002/anie.201203230] [Citation(s) in RCA: 226] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Indexed: 11/11/2022]
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236
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Zhao P, Wang F, Han K, Li X. Rhodium(III)-Catalyzed Cyclization–Olefination of N-Acetoxyl Ketoimine-Alkynes. Org Lett 2012; 14:3400-3. [DOI: 10.1021/ol301371p] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Peng Zhao
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Fen Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Keli Han
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Xingwei Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
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237
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Kim JY, Park SH, Ryu J, Cho SH, Kim SH, Chang S. Rhodium-Catalyzed Intermolecular Amidation of Arenes with Sulfonyl Azides via Chelation-Assisted C–H Bond Activation. J Am Chem Soc 2012; 134:9110-3. [DOI: 10.1021/ja303527m] [Citation(s) in RCA: 409] [Impact Index Per Article: 34.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Ji Young Kim
- Department of Chemistry and Molecular-Level
Interface
Research Center, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 305-701, Republic
of Korea
| | - Sae Hume Park
- Department of Chemistry and Molecular-Level
Interface
Research Center, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 305-701, Republic
of Korea
| | - Jaeyune Ryu
- Department of Chemistry and Molecular-Level
Interface
Research Center, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 305-701, Republic
of Korea
| | - Seung Hwan Cho
- Department of Chemistry and Molecular-Level
Interface
Research Center, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 305-701, Republic
of Korea
| | - Seok Hwan Kim
- Department of Chemistry and Molecular-Level
Interface
Research Center, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 305-701, Republic
of Korea
| | - Sukbok Chang
- Department of Chemistry and Molecular-Level
Interface
Research Center, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 305-701, Republic
of Korea
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238
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Schröder N, Wencel-Delord J, Glorius F. High-Yielding, Versatile, and Practical [Rh(III)Cp*]-Catalyzed Ortho Bromination and Iodination of Arenes. J Am Chem Soc 2012; 134:8298-301. [DOI: 10.1021/ja302631j] [Citation(s) in RCA: 355] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Nils Schröder
- Organisch-Chemisches Institut der Westfälischen Wilhelms-Universität Münster, Corrensstrasse
40, 48149 Münster, Germany
| | - Joanna Wencel-Delord
- Organisch-Chemisches Institut der Westfälischen Wilhelms-Universität Münster, Corrensstrasse
40, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut der Westfälischen Wilhelms-Universität Münster, Corrensstrasse
40, 48149 Münster, Germany
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239
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Yang Y, Lin Y, Rao Y. Ruthenium(II)-catalyzed synthesis of hydroxylated arenes with ester as an effective directing group. Org Lett 2012; 14:2874-7. [PMID: 22582921 DOI: 10.1021/ol301104n] [Citation(s) in RCA: 128] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An unprecedented Ru(II) catalyzed ortho-hydroxylation has been developed for the facile synthesis of a variety of multifunctionalized arenes from easily accessible ethyl benzoates with ester as an efficient directing group. Both the TFA/TFAA cosolvent system and oxidants serve as the critical success factors in this transformation. The reaction demonstrates excellent reactivity, good functional group tolerance, and high yields.
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Affiliation(s)
- Yiqing Yang
- Department of Pharmacology and Pharmaceutical Sciences, School of Medicine and School of Life Sciences, Tsinghua University, Beijing 100084, China
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240
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Guru MM, Punniyamurthy T. Copper(II)-Catalyzed Aerobic Oxidative Synthesis of Substituted 1,2,3- and 1,2,4-Triazoles from Bisarylhydrazones via C–H Functionalization/C–C/N–N/C–N Bonds Formation. J Org Chem 2012; 77:5063-73. [DOI: 10.1021/jo300592t] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Murali Mohan Guru
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
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241
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Xu Z, Xiang B, Sun P. ortho-Olefination of Arylaldehyde O-Methyloximes through Palladium-Catalyzed C-H Activation. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200393] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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242
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Morimoto K, Itoh M, Hirano K, Satoh T, Shibata Y, Tanaka K, Miura M. Synthesis of Fluorene Derivatives through Rhodium-Catalyzed Dehydrogenative Cyclization. Angew Chem Int Ed Engl 2012; 51:5359-62. [DOI: 10.1002/anie.201201526] [Citation(s) in RCA: 140] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 03/23/2012] [Indexed: 11/07/2022]
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243
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Morimoto K, Itoh M, Hirano K, Satoh T, Shibata Y, Tanaka K, Miura M. Synthesis of Fluorene Derivatives through Rhodium-Catalyzed Dehydrogenative Cyclization. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201526] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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244
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Wang H, Glorius F. Mild rhodium(III)-catalyzed C-H activation and intermolecular annulation with allenes. Angew Chem Int Ed Engl 2012; 51:7318-22. [PMID: 22514051 DOI: 10.1002/anie.201201273] [Citation(s) in RCA: 316] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Indexed: 11/11/2022]
Abstract
All(enes) great! A novel Rh(III)-catalyzed oxidative coupling with allenes under mild conditions provides heterocycles with exocyclic double bonds. This reaction features low catalyst loadings, high regio- and stereoselectivity, and excellent substrate scope. The products were derivatized and preliminary mechanistic studies were conducted.
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Affiliation(s)
- Honggen Wang
- Universität Münster, Organisch-Chemisches Institut, Corrensstrasse 40, 48149 Münster, Germany
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245
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Wang H, Glorius F. Milde Rhodium(III)-katalysierte C-H-Aktivierung und intermolekulare Anellierung mit Allenen. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201273] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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246
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Li BJ, Wang HY, Zhu QL, Shi ZJ. Rhodium/Copper-Catalyzed Annulation of Benzimides with Internal Alkynes: Indenone Synthesis through Sequential CH and CN Cleavage. Angew Chem Int Ed Engl 2012; 51:3948-52. [DOI: 10.1002/anie.201200271] [Citation(s) in RCA: 291] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Indexed: 11/09/2022]
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247
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Li BJ, Wang HY, Zhu QL, Shi ZJ. Rhodium/Copper-Catalyzed Annulation of Benzimides with Internal Alkynes: Indenone Synthesis through Sequential CH and CN Cleavage. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201200271] [Citation(s) in RCA: 103] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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248
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Wencel-Delord J, Nimphius C, Patureau FW, Glorius F. Undirected Arene and Chelate-Assisted Olefin C-H Bond Activation: [RhIIICp*]-Catalyzed Dehydrogenative Alkene-Arene Coupling as a New Pathway for the Selective Synthesis of Highly SubstitutedZOlefins. Chem Asian J 2012; 7:1208-12. [DOI: 10.1002/asia.201101018] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Indexed: 11/12/2022]
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249
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Ryu J, Cho SH, Chang S. A Versatile Rhodium(I) Catalyst System for the Addition of Heteroarenes to both Alkenes and Alkynes by a CH Bond Activation. Angew Chem Int Ed Engl 2012; 51:3677-81. [DOI: 10.1002/anie.201200120] [Citation(s) in RCA: 146] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Indexed: 11/10/2022]
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250
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Ryu J, Cho SH, Chang S. A Versatile Rhodium(I) Catalyst System for the Addition of Heteroarenes to both Alkenes and Alkynes by a CH Bond Activation. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201200120] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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