1851
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Stokes BJ, Jovanović B, Dong H, Richert KJ, Riell RD, Driver TG. Rh(2)(II)-catalyzed synthesis of carbazoles from biaryl azides. J Org Chem 2009; 74:3225-8. [PMID: 19296584 PMCID: PMC2743530 DOI: 10.1021/jo9002536] [Citation(s) in RCA: 166] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An array of carbazoles (23 examples) can be synthesized from substituted biaryl azides at 60 degrees C using substoichiometric quantities of Rh(2)(O(2)CC(3)F(7))(4) or Rh(2)(O(2)CC(7)H(15))(4).
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Affiliation(s)
- Benjamin J. Stokes
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL, 60607
| | - Brankica Jovanović
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL, 60607
| | - Huijun Dong
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL, 60607
| | - Kathleen J. Richert
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL, 60607
| | - Ryan D. Riell
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL, 60607
| | - Tom G. Driver
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL, 60607
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1852
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Miura T, Ito Y, Murakami M. Synthesis of Oxindoles by Palladium-catalyzed C–H Bond Amidation. CHEM LETT 2009. [DOI: 10.1246/cl.2009.328] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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1853
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Ventura DL, Li Z, Coleman MG, Davies HM. Intermolecular C–H functionalization versus cyclopropanation of electron rich 1,1-disubstituted and trisubstituted alkenes. Tetrahedron 2009. [DOI: 10.1016/j.tet.2008.11.059] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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1854
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1855
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Vermeulen NA, Chen MS, Christina White M. The Fe(PDP)-catalyzed aliphatic C–H oxidation: a slow addition protocol. Tetrahedron 2009. [DOI: 10.1016/j.tet.2008.11.082] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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1856
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Fiori KW, Espino CG, Brodsky BH, Du Bois J. A mechanistic analysis of the Rh-catalyzed intramolecular C–H amination reaction. Tetrahedron 2009. [DOI: 10.1016/j.tet.2008.11.073] [Citation(s) in RCA: 205] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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1857
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Indole synthesis: palladium-catalyzed C–H bond amination via reduction of nitroalkenes with carbon monoxide. Tetrahedron 2009. [DOI: 10.1016/j.tet.2008.11.034] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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1858
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Dreis AM, Douglas CJ. Catalytic carbon-carbon sigma bond activation: an intramolecular carbo-acylation reaction with acylquinolines. J Am Chem Soc 2009; 131:412-3. [PMID: 19105696 DOI: 10.1021/ja8066308] [Citation(s) in RCA: 203] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Carbon-carbon sigma-bond activation is a contemporary challenge for organometallic chemistry and catalysis. Herein, we disclose a new alkene carboacylation reaction initiated by quinoline-directed, rhodium-catalyzed C-C sigma bond activation. The alkene carboacylation allows for the construction of all-carbon quaternary centers, with a broad substrate scope, providing access to carbocyclic and heterocyclic ring systems in good to excellent yields.
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Affiliation(s)
- Ashley M Dreis
- Department of Chemistry, University of Minnesota-Twin Cities, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, USA
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1859
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Fantauzzi S, Caselli A, Gallo E. Nitrene transfer reactions mediated by metallo-porphyrin complexes. Dalton Trans 2009:5434-43. [PMID: 19587983 DOI: 10.1039/b902929j] [Citation(s) in RCA: 142] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nitrene transfer reactions represent a useful methodology to synthesize in a few steps high added-value compounds used as organic intermediates. Herein, we describe the catalytic activity of metal porphyrin complexes in a wide range of reactions such as C-H hydrocarbon amination and olefin aziridination to synthesize nitrogen containing molecules. All the most important nitrene sources have been reviewed stressing the potentiality and limits of each one in the particular class of chemical transformation.
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Affiliation(s)
- Simone Fantauzzi
- Dipartimento di Chimica Inorganica, Metallorganica e Analitica Lamberto Malatesta, Università degli Studi di Milano, and ISTM-CNR, Via Venezian 21, 20133, Milano, Italy
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1860
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Denton JR, Davies HML. Enantioselective reactions of donor/acceptor carbenoids derived from alpha-aryl-alpha-diazoketones. Org Lett 2009; 11:787-90. [PMID: 19146454 DOI: 10.1021/ol802614j] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reaction of a variety of alpha-aryl-alpha-diazo ketones with activated olefins, catalyzed by the adamantyl glycine-derived dirhodium complex Rh(2)(S-PTAD)(4), generates cyclopropyl ketones with high diastereoselectivity (up to >95:5 dr) and enantioselectivity (up to 98% ee). Intermolecular C-H functionalization of 1,4-cyclohexadiene by means of carbenoid-induced C-H insertion was also possible with this type of carbenoid.
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Affiliation(s)
- Justin R Denton
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000, USA
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1861
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1862
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1863
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Kurokawa T, Kim M, Du Bois J. Synthesis of 1,3-Diamines Through Rhodium-Catalyzed CH Insertion. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200806192] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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1864
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Teo YC. Efficient Cross-Coupling Reactions of Nitrogen Nucleophiles with Aryl Halides in Water. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200800746] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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1865
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King ER, Betley TA. C−H Bond Amination from a Ferrous Dipyrromethene Complex. Inorg Chem 2009; 48:2361-3. [DOI: 10.1021/ic900219b] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Evan R. King
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, 306E Mallinckrodt, Cambridge, Massachusetts 02138
| | - Theodore A. Betley
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, 306E Mallinckrodt, Cambridge, Massachusetts 02138
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1866
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1867
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Nicolaou K, Chen J, Edmonds D, Estrada A. Fortschritte in der Chemie und Biologie natürlicher Antibiotika. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200801695] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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1868
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Shibata Y, Otake Y, Hirano M, Tanaka K. Amide-Directed Alkenylation of sp2 C−H Bonds Catalyzed by a Cationic Rh(I)/BIPHEP Complex Under Mild Conditions: Dramatic Rate Acceleration by a 1-Pyrrolidinecarbonyl Group. Org Lett 2009; 11:689-92. [DOI: 10.1021/ol802767s] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu Shibata
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
| | - Yousuke Otake
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
| | - Masao Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
| | - Ken Tanaka
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
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1869
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Zalatan DN, Bois JD. Metal-Catalyzed Oxidations of C–H to C–N Bonds. C-H ACTIVATION 2009; 292:347-78. [DOI: 10.1007/128_2009_19] [Citation(s) in RCA: 248] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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1870
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Abstract
A grand opening: N-Boc-N-alkylsulfamides are effective substrates for the title transformation. Oxidative cyclization is highly chemoselective as well as being both stereospecific and diastereoselective. With the advent of new protocols that facilitate ring opening of the six-membered-ring heterocyclic products, access to differentially protected 1,3-diamines has been made possible (see scheme).
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Affiliation(s)
- Toshiki Kurokawa
- Department of Chemistry, Stanford University, Stanford, CA 94305-5080, USA
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1871
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Zhao F, Wang C, Liu L, Zhang WX, Xi Z. Skeletal rearrangement of all-carbon spiro skeletons mediated by a Lewis acid. Chem Commun (Camb) 2009:6569-71. [DOI: 10.1039/b914619a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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1872
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Davies HML, Dick AR. Functionalization of Carbon–Hydrogen Bonds Through Transition Metal Carbenoid Insertion. C-H ACTIVATION 2009; 292:303-45. [DOI: 10.1007/128_2009_11] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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1873
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Chen X, Engle KM, Wang DH, Yu JQ. Palladium(II)-catalyzed C-H activation/C-C cross-coupling reactions: versatility and practicality. Angew Chem Int Ed Engl 2009; 48:5094-115. [PMID: 19557755 PMCID: PMC2722958 DOI: 10.1002/anie.200806273] [Citation(s) in RCA: 3615] [Impact Index Per Article: 241.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In the past decade, palladium-catalyzed C-H activation/C-C bond-forming reactions have emerged as promising new catalytic transformations; however, development in this field is still at an early stage compared to the state of the art in cross-coupling reactions using aryl and alkyl halides. This Review begins with a brief introduction of four extensively investigated modes of catalysis for forming C-C bonds from C-H bonds: Pd(II)/Pd(0), Pd(II)/Pd(IV), Pd(0)/Pd(II)/Pd(IV), and Pd(0)/Pd(II) catalysis. A more detailed discussion is then directed towards the recent development of palladium(II)-catalyzed coupling of C-H bonds with organometallic reagents through a Pd(II)/Pd(0) catalytic cycle. Despite the progress made to date, improving the versatility and practicality of this new reaction remains a tremendous challenge.
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Affiliation(s)
- Xiao Chen
- K. M. Engle, D.-H. Wang, Prof. Dr. J.-Q. Yu, Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Rd., La Jolla, CA 92037 (USA), Fax: (+1) 858-784-2409, , Dr. X. Chen, Chemical Development Department, Albany Molecular Research, Inc., 21 Corporate Circle, Albany, NY 12203 (USA)
| | - Keary M. Engle
- K. M. Engle, D.-H. Wang, Prof. Dr. J.-Q. Yu, Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Rd., La Jolla, CA 92037 (USA), Fax: (+1) 858-784-2409, , Dr. X. Chen, Chemical Development Department, Albany Molecular Research, Inc., 21 Corporate Circle, Albany, NY 12203 (USA)
| | - Dong-Hui Wang
- K. M. Engle, D.-H. Wang, Prof. Dr. J.-Q. Yu, Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Rd., La Jolla, CA 92037 (USA), Fax: (+1) 858-784-2409, , Dr. X. Chen, Chemical Development Department, Albany Molecular Research, Inc., 21 Corporate Circle, Albany, NY 12203 (USA)
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1874
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Rubio M, Jellema E, Siegler MA, Spek AL, Reek JNH, de Bruin B. Supramolecular NHC ligands: on the influence of ZnII-templates on the activity of RhI(cod) complexes in ‘carbene polymerization’. Dalton Trans 2009:8970-6. [DOI: 10.1039/b911339h] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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1875
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Giri R, Shi BF, Engle KM, Maugel N, Yu JQ. Transition metal-catalyzed C–H activation reactions: diastereoselectivity and enantioselectivity. Chem Soc Rev 2009; 38:3242-72. [DOI: 10.1039/b816707a] [Citation(s) in RCA: 1360] [Impact Index Per Article: 90.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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1876
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Czaplik WM, Mayer M, Cvengros J, von Wangelin AJ. Coming of age: sustainable iron-catalyzed cross-coupling reactions. CHEMSUSCHEM 2009; 2:396-417. [PMID: 19425040 DOI: 10.1002/cssc.200900055] [Citation(s) in RCA: 465] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Iron-catalyzed cross-coupling reactions have, over the past years, developed to maturity and today are an integral part of the organic chemist's toolkit. They benefit from low costs, operational simplicity, and high reactivity and thus constitute the "green" sister of the palladium and nickel establishment. This timely Review traces back major achievements, discusses their mechanistic background, and highlights numerous applications to molecular synthesis.Iron-catalyzed carbon-carbon bond-forming reactions have matured to an indispensable class of reactions in organic synthesis. The advent of economically and ecologically attractive iron catalysts in the past years has stepped up the competition with the established palladium and nickel catalyst systems that have dominated the field for more than 30 years, but suffer from high costs, toxicity, and sometimes low reactivity. Iron-catalyzed protocols do not merely benefit from economic advantages but entertain a rich manifold of reactivity patterns and tolerate various functional groups. The past years have witnessed a rapid development with ever-more-efficient protocols for the cross-coupling between alkyl, alkenyl, alkynyl, aryl, and acyl moieties becoming available to organic chemists. This Review intends to shed light onto the versatility that iron-catalyzed cross-coupling reactions offer, summarize major achievements, and clear the way for further use of such superior methodologies in the synthesis of fine chemicals, bioactive molecules, and materials.
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1877
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Cano I, Nicasio MC, Pérez PJ. Nitrene transfer reactions catalysed by copper(I) complexes in ionic liquid using chloramine-T. Dalton Trans 2009:730-4. [DOI: 10.1039/b813469c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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1878
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Zalatan DN, Du Bois J. Oxidative Cyclization of Sulfamate Esters Using NaOCl - A Metal-Mediated Hoffman-Löffler Freytag Reaction. Synlett 2009; 2009:143-146. [PMID: 19319207 PMCID: PMC2659663 DOI: 10.1055/s-0028-1087392] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Intramolecular C-H amination with sulfamate esters occurs under the action of dinuclear Rh catalysts and iodine(III) oxidants, and has recently emerged as a powerful tool for synthesis. Insights gained through mechanistic studies of this process suggest that other terminal oxidants, including common halogenating agents such as NaOCl, could function to promote the cyclization reaction. Results described in this report demonstrate that the combination of NaOCl and 3 mol% Rh(2)(oct)(4) is effective in select cases for converting sulfamate substrates to the corresponding [1,2,3]-oxathiazinane-2,2-dioxide heterocycles. The mechanism for C-H functionalization, however, is distinct from that induced by hypervalent iodine reagents and likely involves the intermediacy of an N-centered radical.
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Affiliation(s)
- David N. Zalatan
- Department of Chemistry, Stanford University, Stanford, CA 94305-5080
| | - J. Du Bois
- Department of Chemistry, Stanford University, Stanford, CA 94305-5080
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1879
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Molter A, Mohr F. Are Organotin Reagents Derived from Bis(trimethylsilyl)picoline Suitable Precursors for the Preparation of Cyclometallated Complexes? Z Anorg Allg Chem 2009. [DOI: 10.1002/zaac.200800339] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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1880
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Zhang YZ, Zhu SF, Cai Y, Mao HX, Zhou QL. Copper-catalyzed enantioselective carbenoid insertion into S–H bonds. Chem Commun (Camb) 2009:5362-4. [DOI: 10.1039/b911670b] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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1881
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Nicolaou KC, Chen JS, Edmonds DJ, Estrada AA. Recent advances in the chemistry and biology of naturally occurring antibiotics. Angew Chem Int Ed Engl 2009; 48:660-719. [PMID: 19130444 PMCID: PMC2730216 DOI: 10.1002/anie.200801695] [Citation(s) in RCA: 184] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Ever since the world-shaping discovery of penicillin, nature's molecular diversity has been extensively screened for new medications and lead compounds in drug discovery. The search for agents intended to combat infectious diseases has been of particular interest and has enjoyed a high degree of success. Indeed, the history of antibiotics is marked with impressive discoveries and drug-development stories, the overwhelming majority of which have their origin in natural products. Chemistry, and in particular chemical synthesis, has played a major role in bringing naturally occurring antibiotics and their derivatives to the clinic, and no doubt these disciplines will continue to be key enabling technologies. In this review article, we highlight a number of recent discoveries and advances in the chemistry, biology, and medicine of naturally occurring antibiotics, with particular emphasis on total synthesis, analogue design, and biological evaluation of molecules with novel mechanisms of action.
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Affiliation(s)
- K C Nicolaou
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
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1882
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Thu HY, Tong GSM, Huang JS, Chan SLF, Deng QH, Che CM. Highly selective metal catalysts for intermolecular carbenoid insertion into primary C-H bonds and enantioselective C-C bond formation. Angew Chem Int Ed Engl 2008; 47:9747-51. [PMID: 18855950 DOI: 10.1002/anie.200803157] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hung-Yat Thu
- Department of Chemistry and Open Laboratory of Chemical Biology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The University of Hong Kong, Pokfulam Road, Hong Kong
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1883
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Pap J, DeBeer George S, Berry J. Delokalisierte Metall-Metall- und Metall-Ligand-Mehrfachbindungen in einer linearen RuRuN-Einheit: Verlängerung einer normalerweise kurzen RuN-Bindung. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200804397] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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1884
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Pap J, DeBeer George S, Berry J. Delocalized Metal-Metal and Metal-Ligand Multiple Bonding in a Linear RuRuN Unit: Elongation of a Traditionally Short RuN Bond. Angew Chem Int Ed Engl 2008; 47:10102-5. [DOI: 10.1002/anie.200804397] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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1885
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Badiei Y, Dinescu A, Dai X, Palomino R, Heinemann F, Cundari T, Warren T. Copper-Nitrene Complexes in Catalytic CH Amination. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200804304] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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1886
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Badiei Y, Dinescu A, Dai X, Palomino R, Heinemann F, Cundari T, Warren T. Copper-Nitrene Complexes in Catalytic CH Amination. Angew Chem Int Ed Engl 2008; 47:9961-4. [DOI: 10.1002/anie.200804304] [Citation(s) in RCA: 307] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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1887
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Tsuchikama K, Kasagawa M, Hashimoto YK, Endo K, Shibata T. Cationic iridium–BINAP complex-catalyzed addition of aryl ketones to alkynes and alkenes via directed C–H bond cleavage. J Organomet Chem 2008. [DOI: 10.1016/j.jorganchem.2008.09.065] [Citation(s) in RCA: 142] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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1888
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Thu HY, Tong GM, Huang JS, Chan SF, Deng QH, Che CM. Highly Selective Metal Catalysts for Intermolecular Carbenoid Insertion into Primary CH Bonds and Enantioselective CC Bond Formation. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200803157] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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1889
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Collet F, Dodd RH, Dauban P. Stereoselective Rhodium-Catalyzed Imination of Sulfides. Org Lett 2008; 10:5473-6. [DOI: 10.1021/ol802295b] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Florence Collet
- Institut de Chimie des Substances Naturelles, UPR 2301 CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Robert H. Dodd
- Institut de Chimie des Substances Naturelles, UPR 2301 CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Philippe Dauban
- Institut de Chimie des Substances Naturelles, UPR 2301 CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
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1890
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Inamoto K, Hasegawa C, Hiroya K, Doi T. Palladium-Catalyzed Synthesis of 2-Substituted Benzothiazoles via a C−H Functionalization/Intramolecular C−S Bond Formation Process. Org Lett 2008; 10:5147-50. [DOI: 10.1021/ol802033p] [Citation(s) in RCA: 248] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Kiyofumi Inamoto
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Chisa Hasegawa
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Kou Hiroya
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Takayuki Doi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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1891
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Chaumontet M, Piccardi R, Audic N, Hitce J, Peglion JL, Clot E, Baudoin O. Synthesis of benzocyclobutenes by palladium-catalyzed C-H activation of methyl groups: method and mechanistic study. J Am Chem Soc 2008; 130:15157-66. [PMID: 18928284 DOI: 10.1021/ja805598s] [Citation(s) in RCA: 251] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An efficient catalytic system has been developed for the synthesis of benzocyclobutenes by C-H activation of methyl groups. The optimal conditions employed a combination of Pd(OAc) 2 and P ( t )Bu 3 as catalyst, K 2CO 3 as the base, and DMF as solvent. A variety of substituted BCB were obtained under these conditions with yields in the 44-92% range, including molecules that are hardly accessible by other methods. The reaction was found limited to substrates bearing a quaternary benzylic carbon, but benzocyclobutenes bearing a tertiary benzylic carbon could be obtained indirectly from diesters by decarboxylation. Reaction substrates bearing a small substituent para to bromine gave an unexpected regioisomer that likely arose from a 1,4-palladium migration process. The formation of this "abnormal" regioisomer could be suppressed by introducing a larger subsituent para to bromine. DFT(B3PW91) calculations on the reaction of 2-bromo-tert-butylbenzene with Pd(P ( t )Bu 3) with different bases (acetate, bicarbonate, carbonate) showed the critical influence of the coordination mode of the base to induce both an easy C-H activation and to allow for a pathway for 1,4-palladium migration. Carbonate is shown to be more efficient than the two other bases because it can abstract the proton easily and at the same time maintain kappa (1)-coordination without extensive electronic reorganization.
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Affiliation(s)
- Manon Chaumontet
- Institut Charles Gerhardt, UMR5253, CNRS-UM2-UM1-ENSCM, case courrier 1501, Place Eugène Bataillon, 34000 Montpellier, France
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1892
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Nicolaou KC, Stepan AF, Lister T, Li A, Montero A, Tria GS, Turner CI, Tang Y, Wang J, Denton RM, Edmonds DJ. Design, synthesis, and biological evaluation of platensimycin analogues with varying degrees of molecular complexity. J Am Chem Soc 2008; 130:13110-9. [PMID: 18771264 PMCID: PMC2669665 DOI: 10.1021/ja8044376] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The molecular design, chemical synthesis, and biological evaluation of two distinct series of platensimycin analogues with varying degrees of complexity are described. The first series of compounds probes the biological importance of the benzoic acid subunit of the molecule, while the second series explores the tetracyclic cage domain. The biological data obtained reveal that, while the substituted benzoic acid domain of platensimycin is a highly conserved structural motif within the active compounds with strict functional group requirements, the cage domain of the molecule can tolerate considerable structural modifications without losing biological action. These findings refine our present understanding of the platensimycin pharmacophore and establish certain structure-activity relationships from which the next generation of designed analogues of this new antibiotic may emerge.
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Affiliation(s)
- K C Nicolaou
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
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1893
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Liégault B, Fagnou K. Palladium-Catalyzed Intramolecular Coupling of Arenes and Unactivated Alkanes in Air. Organometallics 2008. [DOI: 10.1021/om800780f] [Citation(s) in RCA: 121] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Benoît Liégault
- Center for Catalysis Research and Innovation, University of Ottawa, Department of Chemistry, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Keith Fagnou
- Center for Catalysis Research and Innovation, University of Ottawa, Department of Chemistry, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
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1894
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Choi MKW, Yu WY, So MH, Zhou CY, Deng QH, Che CM. A Non-Cross-Linked Soluble Polystyrene-Supported Ruthenium Catalyst for Carbenoid Transfer Reactions. Chem Asian J 2008; 3:1256-65. [DOI: 10.1002/asia.200800144] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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1895
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Barluenga J, Fañanás-Mastral M, Aznar F. CH Insertion Processes on Stabilized Indolyl andortho-Aminophenyl Fischer Carbene Complexes: Synthesis of Azepino[3,2,1-hi] indole, Benzazepine and Indole Derivatives. Chemistry 2008; 14:7508-12. [DOI: 10.1002/chem.200801132] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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1896
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Despagnet-Ayoub E, Jacob K, Vendier L, Etienne M, Álvarez E, Caballero A, Díaz-Requejo MM, Pérez PJ. A New Perfluorinated F21-Tp Scorpionate Ligand: Enhanced Alkane Functionalization by Carbene Insertion with (F21-Tp)M Catalysts (M = Cu, Ag). Organometallics 2008. [DOI: 10.1021/om800531a] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Emmanuelle Despagnet-Ayoub
- Laboratoire de Chimie de Coordination du CNRS, UPR 8241 Liée par Conventions à l’Université Paul Sabatier et à l’Institut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex 4, France, Instituto de Investigaciones Químicas, CSIC-Universidad de Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain, and Laboratorio de Catálisis Homogénea, Departamento de Química y Ciencia de los Materiales, Unidad Asociada al CSIC, Campus de El Carmen s/n, Universidad de Huelva, 21007
| | - Kane Jacob
- Laboratoire de Chimie de Coordination du CNRS, UPR 8241 Liée par Conventions à l’Université Paul Sabatier et à l’Institut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex 4, France, Instituto de Investigaciones Químicas, CSIC-Universidad de Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain, and Laboratorio de Catálisis Homogénea, Departamento de Química y Ciencia de los Materiales, Unidad Asociada al CSIC, Campus de El Carmen s/n, Universidad de Huelva, 21007
| | - Laure Vendier
- Laboratoire de Chimie de Coordination du CNRS, UPR 8241 Liée par Conventions à l’Université Paul Sabatier et à l’Institut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex 4, France, Instituto de Investigaciones Químicas, CSIC-Universidad de Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain, and Laboratorio de Catálisis Homogénea, Departamento de Química y Ciencia de los Materiales, Unidad Asociada al CSIC, Campus de El Carmen s/n, Universidad de Huelva, 21007
| | - Michel Etienne
- Laboratoire de Chimie de Coordination du CNRS, UPR 8241 Liée par Conventions à l’Université Paul Sabatier et à l’Institut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex 4, France, Instituto de Investigaciones Químicas, CSIC-Universidad de Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain, and Laboratorio de Catálisis Homogénea, Departamento de Química y Ciencia de los Materiales, Unidad Asociada al CSIC, Campus de El Carmen s/n, Universidad de Huelva, 21007
| | - Eleuterio Álvarez
- Laboratoire de Chimie de Coordination du CNRS, UPR 8241 Liée par Conventions à l’Université Paul Sabatier et à l’Institut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex 4, France, Instituto de Investigaciones Químicas, CSIC-Universidad de Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain, and Laboratorio de Catálisis Homogénea, Departamento de Química y Ciencia de los Materiales, Unidad Asociada al CSIC, Campus de El Carmen s/n, Universidad de Huelva, 21007
| | - Ana Caballero
- Laboratoire de Chimie de Coordination du CNRS, UPR 8241 Liée par Conventions à l’Université Paul Sabatier et à l’Institut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex 4, France, Instituto de Investigaciones Químicas, CSIC-Universidad de Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain, and Laboratorio de Catálisis Homogénea, Departamento de Química y Ciencia de los Materiales, Unidad Asociada al CSIC, Campus de El Carmen s/n, Universidad de Huelva, 21007
| | - M. Mar Díaz-Requejo
- Laboratoire de Chimie de Coordination du CNRS, UPR 8241 Liée par Conventions à l’Université Paul Sabatier et à l’Institut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex 4, France, Instituto de Investigaciones Químicas, CSIC-Universidad de Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain, and Laboratorio de Catálisis Homogénea, Departamento de Química y Ciencia de los Materiales, Unidad Asociada al CSIC, Campus de El Carmen s/n, Universidad de Huelva, 21007
| | - Pedro J. Pérez
- Laboratoire de Chimie de Coordination du CNRS, UPR 8241 Liée par Conventions à l’Université Paul Sabatier et à l’Institut National Polytechnique de Toulouse, 205 Route de Narbonne, 31077 Toulouse Cedex 4, France, Instituto de Investigaciones Químicas, CSIC-Universidad de Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain, and Laboratorio de Catálisis Homogénea, Departamento de Química y Ciencia de los Materiales, Unidad Asociada al CSIC, Campus de El Carmen s/n, Universidad de Huelva, 21007
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1897
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Díaz-Requejo MM, Pérez PJ. Coinage Metal Catalyzed C−H Bond Functionalization of Hydrocarbons. Chem Rev 2008; 108:3379-94. [DOI: 10.1021/cr078364y] [Citation(s) in RCA: 657] [Impact Index Per Article: 41.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. Mar Díaz-Requejo
- Laboratorio de Catálisis Homogénea, Departamento de Química y Ciencia de los Materiales, Unidad Asociada al CSIC, Universidad de Huelva, Campus de El Carmen 21007-Huelva, Spain
| | - Pedro J. Pérez
- Laboratorio de Catálisis Homogénea, Departamento de Química y Ciencia de los Materiales, Unidad Asociada al CSIC, Universidad de Huelva, Campus de El Carmen 21007-Huelva, Spain
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1898
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Shi BF, Maugel N, Zhang YH, Yu JQ. Pd(II)-catalyzed enantioselective activation of C(sp2)-H and C(sp3)-H bonds using monoprotected amino acids as chiral ligands. Angew Chem Int Ed Engl 2008; 47:4882-6. [PMID: 18484582 DOI: 10.1002/anie.200801030] [Citation(s) in RCA: 538] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bing-Feng Shi
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037, USA
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1899
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Harada H, Thalji RK, Bergman RG, Ellman JA. Enantioselective intramolecular hydroarylation of alkenes via directed C-H bond activation. J Org Chem 2008; 73:6772-9. [PMID: 18681407 DOI: 10.1021/jo801098z] [Citation(s) in RCA: 122] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Highly enantioselective catalytic intramolecular ortho-alkylation of aromatic imines containing alkenyl groups tethered at the meta position relative to the imine directing group has been achieved using [RhCl(coe)2]2 and chiral phosphoramidite ligands. Cyclization of substrates containing 1,1- and 1,2-disubstituted as well as trisubstituted alkenes were achieved with enantioselectivities >90% ee for each substrate class. Cyclization of substrates with Z-alkene isomers proceeded much more efficiently than substrates with E-alkene isomers. This further enabled the highly stereoselective intramolecular alkylation of certain substrates containing Z/E-alkene mixtures via a Rh-catalyzed alkene isomerization with preferential cyclization of the Z-isomer.
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Affiliation(s)
- Hitoshi Harada
- Department of Chemistry, University of California, and Division of Chemical Sciences, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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1900
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Olson DE, Du Bois J. Catalytic C-H amination for the preparation of substituted 1,2-diamines. J Am Chem Soc 2008; 130:11248-9. [PMID: 18680286 DOI: 10.1021/ja803344v] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Rhodium-catalyzed C-H insertion of hydroxylamine-derived sulfamate esters makes possible the synthesis of unique oxathiadiazinane heterocycles, which upon mild reduction furnish differentially substituted 1,2-diamine products. This highly chemo- and diastereoselective transformation underscores the power of catalytic C-H functionalization as a general approach to C-N bond construction.
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Affiliation(s)
- David E Olson
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, USA
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