101
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Haibach MC, Seidel D. C-H-Funktionalisierung über intramolekularen Hydridtransfer. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201306489] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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102
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Haibach MC, Seidel D. CH Bond Functionalization through Intramolecular Hydride Transfer. Angew Chem Int Ed Engl 2014; 53:5010-36. [DOI: 10.1002/anie.201306489] [Citation(s) in RCA: 175] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Michael C. Haibach
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901 (USA) seidel.rutchem.rutgers.edu http://www.seidel‐group.com
| | - Daniel Seidel
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901 (USA) seidel.rutchem.rutgers.edu http://www.seidel‐group.com
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103
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Yu J, Li N, Chen DF, Luo SW. Catalytic enantioselective C(sp3)H functionalization: intramolecular benzylic [1,5]-hydride shift. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.089] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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104
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Wu G, Zheng R, Nelson J, Zhang L. One-Step Synthesis of Methanesulfonyloxymethyl KetonesviaGold-Catalyzed Oxidation of Terminal Alkynes: A Combination of Ligand and Counter Anion Enables High Efficiency and a One-Pot Synthesis of 2,4-Disubstituted Thiazoles. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300855] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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105
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Wang L, Xiao J. Advancement in Cascade [1,n]-Hydrogen Transfer/Cyclization: A Method for Direct Functionalization of Inactive C(sp3)H Bonds. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201301153] [Citation(s) in RCA: 153] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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106
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Abstract
Metal carbenes are highly versatile species that mediate various transformations. Recent advances in gold catalysis have allowed catalytic access to α-oxo metal carbenes from the alkyne functionality. Compared with traditional methods that rely upon metal-catalyzed decomposition of diazo precursors, the generation of this synthon occurs in an environmentally more appealing fashion by gold-catalyzed alkyne oxygenation. Hydroxylamine derivatives are typically prepared from hydroxylamine salts that are cheap and can be handled without special precaution. In reactions with an alkyne activated by gold, relatively stable nitrones and related reagents undergo efficient O-atom transfer to form putative α-oxo gold carbenes. The highly reactive nature of these species could be utilized in a variety of cascade transformations. Herein, recent synthetic methods based on this reactivity as well as the currently available mechanistic and structural studies through computational and experimental methods have been discussed. A variety of tandem reactions performed by our laboratory and others have demonstrated the synthetic utility of catalytically generated α-oxo gold carbenes and enabled access to various heterocycles. For example, a reaction between nitrones and alkynes led to azomethine ylides for the [3 + 2] dipolar cycloaddition. Alternatively, α-oxo gold carbenes can be transformed into enolate equivalents through a 1,2-pinacol shift. The addition of hydroxylamine derivatives across triple bonds led to oxoamination, providing α-aminocarbonyl compounds or regioselective Fisher indole-type synthesis. N-O bond cleaving redox chemistry paved the way for intermolecular redox processes, most notably by use of pyridine-N-oxide derivatives with expanding synthetic applications. In closing, other metal-based oxygenations using N-O bond oxidants will be highlighted. One particularly interesting aspect is the process leading to metal vinylidene complexes. Trapping of this intermediate resulted in opposite regioselectivity from gold catalysis in alkyne oxygenation and led to ketene intermediates for use in subsequent cascade transformations.
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Affiliation(s)
- Hyun-Suk Yeom
- Department of Chemistry and Institute for Natural Sciences, Hanyang University, Seoul 133-791 Korea
| | - Seunghoon Shin
- Department of Chemistry and Institute for Natural Sciences, Hanyang University, Seoul 133-791 Korea
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107
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Talbot EPA, Richardson M, McKenna JM, Toste FD. Gold Catalysed Redox Synthesis of Imidazo[1,2- a]pyridine using Pyridine N-Oxide and Alkynes. Adv Synth Catal 2014; 356:687-691. [PMID: 24839436 PMCID: PMC4019451 DOI: 10.1002/adsc.201300996] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A mild, catalytic, atom economical synthesis of imidazo[1,2-a]pyridines has been developed: catalytic PicAuCl2 in the presence of an acid produces a range imidazo[1,2-a]pyridines in good yield. This strategy is mild and forseen to be of particular use for the installation of stereogenic centers adjacent to the imidazo[1,2-a]pyridine ring without loss of enantiomeric excess.
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Affiliation(s)
- Eric P A Talbot
- Novartis Institute of Biomedical Research, Wimblehurst Road, Horsham, West Sussex, RH12 5AB, United Kingdom ; Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Melodie Richardson
- Novartis Institute of Biomedical Research, Wimblehurst Road, Horsham, West Sussex, RH12 5AB, United Kingdom
| | - Jeffrey M McKenna
- Novartis Institute of Biomedical Research, Wimblehurst Road, Horsham, West Sussex, RH12 5AB, United Kingdom
| | - F Dean Toste
- Department of Chemistry, University of California, Berkeley, California 94720, United States
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108
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Suresh R, Muthusubramanian S, Kumaran RS, Manickam G. C2-Arylation of Substituted PyridineN-oxides with Heteroaryl Carboxylic Acids by Palladium-Catalyzed Decarboxylative Coupling. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201400013] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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109
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Mori K, Kurihara K, Yabe S, Yamanaka M, Akiyama T. Double C(sp3)–H Bond Functionalization Mediated by Sequential Hydride Shift/Cyclization Process: Diastereoselective Construction of Polyheterocycles. J Am Chem Soc 2014; 136:3744-7. [DOI: 10.1021/ja412706d] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Keiji Mori
- Department
of Chemistry, Faculty of Science, Gakushuin University, Mejiro, Toshima-ku, Tokyo 171-8588, Japan
| | - Kazuki Kurihara
- Department
of Chemistry, Faculty of Science, Gakushuin University, Mejiro, Toshima-ku, Tokyo 171-8588, Japan
| | - Shinnosuke Yabe
- Department
of Chemistry and Research Center for Smart Molecules, Faculty of Science, Rikkyo University, 3-34-1 Nishi-ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Masahiro Yamanaka
- Department
of Chemistry and Research Center for Smart Molecules, Faculty of Science, Rikkyo University, 3-34-1 Nishi-ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Takahiko Akiyama
- Department
of Chemistry, Faculty of Science, Gakushuin University, Mejiro, Toshima-ku, Tokyo 171-8588, Japan
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110
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Mori K, Kurihara K, Akiyama T. Expeditious synthesis of 1-aminoindane derivatives achieved by [1,4]-hydride shift mediated C(sp3)–H bond functionalization. Chem Commun (Camb) 2014; 50:3729-31. [DOI: 10.1039/c4cc00894d] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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111
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Kumar RA, Saidulu G, Sridhar B, Liu ST, Reddy KR. Copper-catalyzed activation of α-amino peroxy and hydroxy intermediates to iminium ion precursor: an access to C4-substituted 3,4-dihydroquinazolines via oxidative cross coupling strategy. J Org Chem 2013; 78:10240-50. [PMID: 24060201 DOI: 10.1021/jo401622r] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A simple and straightforward approach to access C4-substituted-3,4-dihydroquinazolines has been achieved, where copper-catalyzed activation of α-amino peroxide and hydroxide intermediates to iminium ion precursors has been realized as an important step. Reactions of these intermediates with alkynes, indoles, pyrrole, and silylenol ether afforded the structurally diverse C4-substituted-3,4-dihydroquinazoline derivatives in good yields.
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Affiliation(s)
- R Arun Kumar
- Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology , Tarnaka, Hyderabad 500 607, India
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112
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Graf K, Rühl CL, Rudolph M, Rominger F, Hashmi ASK. Metallfreie oxidative Cyclisierung von Alkinyl-Aryl-Ethern zu Benzofuranonen. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201304813] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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113
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Graf K, Rühl CL, Rudolph M, Rominger F, Hashmi ASK. Metal-Free Oxidative Cyclization of Alkynyl Aryl Ethers to Benzofuranones. Angew Chem Int Ed Engl 2013; 52:12727-31. [DOI: 10.1002/anie.201304813] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 07/26/2013] [Indexed: 11/07/2022]
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114
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115
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Malakar CC, Stas S, Herrebout W, Abbaspour Tehrani K. Lewis Acid Mediated Vinyl-Transfer Reaction of Alkynes toN-Alkylimines by Using theN-Alkyl Residue as a Sacrificial Hydrogen Donor. Chemistry 2013; 19:14263-70. [DOI: 10.1002/chem.201300469] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Indexed: 11/10/2022]
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116
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Xu M, Ren TT, Wang KB, Li CY. Synthesis of CyclobutanonesviaGold-Catalyzed Oxidative Rearrangement of Homopropargylic Ethers. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300227] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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117
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Odabachian Y, Wang Q, Zhu J. Tertiary Amines as Synthetic Equivalents of Vinyl Cations: Zinc Bromide Promoted Coupling of Propargylamines with α-Isocyanoacetamides To Give 2,4,5-Trisubstituted Oxazoles Initiated by an Internal Redox Process. Chemistry 2013; 19:12229-33. [DOI: 10.1002/chem.201302106] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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118
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Cera G, Chiarucci M, Dosi F, Bandini M. Gold(I)-Catalyzed Functionalization of Benzhydryl C(sp3)H Bonds. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300525] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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119
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Li DY, Shang XS, Chen GR, Liu PN. Solvent-Switched Benzylic Methylene Functionalization: Addition, Ring-Opening, Cyclization, and Unexpected Cleavage of C–O and C–C Bonds. Org Lett 2013; 15:3848-51. [DOI: 10.1021/ol401470y] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Deng Yuan Li
- Shanghai Key Laboratory of Functional Materials Chemistry and Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai, China
| | - Xue Song Shang
- Shanghai Key Laboratory of Functional Materials Chemistry and Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai, China
| | - Guo Rong Chen
- Shanghai Key Laboratory of Functional Materials Chemistry and Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai, China
| | - Pei Nian Liu
- Shanghai Key Laboratory of Functional Materials Chemistry and Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai, China
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120
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Lu Q, Zhang J, Zhao G, Qi Y, Wang H, Lei A. Dioxygen-Triggered Oxidative Radical Reaction: Direct Aerobic Difunctionalization of Terminal Alkynes toward β-Keto Sulfones. J Am Chem Soc 2013; 135:11481-4. [DOI: 10.1021/ja4052685] [Citation(s) in RCA: 399] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Qingquan Lu
- College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072,
P. R. China
| | - Jian Zhang
- College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072,
P. R. China
| | - Ganglu Zhao
- College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072,
P. R. China
| | - Yue Qi
- College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072,
P. R. China
| | - Huamin Wang
- College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072,
P. R. China
| | - Aiwen Lei
- College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072,
P. R. China
- College of
Pharmacy, Wuhan University, Wuhan 430072,
P. R. China
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