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Ieawsuwan W, Ruchirawat S. PIFA-BF 3·OEt 2 mediated intramolecular regioselective domino cyclization of ynamides: A novel method for the synthesis of tetrahydroisoquinoline-oxazol-2(3H)-ones. Bioorg Med Chem 2017; 25:2856-2867. [PMID: 28351608 DOI: 10.1016/j.bmc.2017.03.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 03/09/2017] [Accepted: 03/17/2017] [Indexed: 10/19/2022]
Abstract
The transition metal-free intramolecular regioselective domino cyclization of N-Boc protected ynamides has been developed to provide the corresponding tetrahydroisoquinoline-oxazo-2(3H)-ones in moderate to good yields.
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Affiliation(s)
- Winai Ieawsuwan
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand.
| | - Somsak Ruchirawat
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand; Chemical Biology Program, Chulabhorn Graduate Institute, 54 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand; Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand
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2
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Shi X, Soulé JF, Doucet H. Synthesis of Phenanthrothiazoles and 1,2-Di(heteroaryl)benzenes through Successive Pd-Catalyzed Direct Arylations. J Org Chem 2017; 82:3886-3894. [DOI: 10.1021/acs.joc.6b03023] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xinzhe Shi
- Institut
des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes “Organométalliques: Matériaux et Catalyse”, Campus de Beaulieu, 35042 Rennes, France
| | - Jean-François Soulé
- Institut
des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes “Organométalliques: Matériaux et Catalyse”, Campus de Beaulieu, 35042 Rennes, France
| | - Henri Doucet
- Institut
des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes “Organométalliques: Matériaux et Catalyse”, Campus de Beaulieu, 35042 Rennes, France
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Abstract
The preparation, structure, and chemistry of hypervalent iodine compounds are reviewed with emphasis on their synthetic application. Compounds of iodine possess reactivity similar to that of transition metals, but have the advantage of environmental sustainability and efficient utilization of natural resources. These compounds are widely used in organic synthesis as selective oxidants and environmentally friendly reagents. Synthetic uses of hypervalent iodine reagents in halogenation reactions, various oxidations, rearrangements, aminations, C-C bond-forming reactions, and transition metal-catalyzed reactions are summarized and discussed. Recent discovery of hypervalent catalytic systems and recyclable reagents, and the development of new enantioselective reactions using chiral hypervalent iodine compounds represent a particularly important achievement in the field of hypervalent iodine chemistry. One of the goals of this Review is to attract the attention of the scientific community as to the benefits of using hypervalent iodine compounds as an environmentally sustainable alternative to heavy metals.
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Affiliation(s)
- Akira Yoshimura
- Department of Chemistry and Biochemistry, University of Minnesota Duluth , Duluth, Minnesota 55812, United States
| | - Viktor V Zhdankin
- Department of Chemistry and Biochemistry, University of Minnesota Duluth , Duluth, Minnesota 55812, United States
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4
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van Loon AA, Holton MK, Downey C, White TM, Rolph CE, Bruening SR, Li G, Delaney KM, Pelkey SJ, Pelkey ET. Preparation of dibenzo[e,g]isoindol-1-ones via Scholl-type oxidative cyclization reactions. J Org Chem 2014; 79:8049-58. [PMID: 25138638 PMCID: PMC4156242 DOI: 10.1021/jo501185f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Indexed: 01/08/2023]
Abstract
A flexible synthesis of dibenzo[e,g]isoindol-1-ones has been developed. Dibenzo[e,g]isoindol-1-ones represent simplified benzenoid analogues of biological indolo[2,3-a]pyrrolo[3,4-c]carbazol-5-ones (indolocarbazoles), compounds that have demonstrated a wide range of biological activity. The synthesis of the title compounds involved tetramic acid sulfonates. Different aryl groups were introduced at C4 of the heterocyclic ring via Suzuki-Miyaura cross-coupling reactions. Finally, mild Scholl-type oxidative cyclizations mediated by phenyliodine(III) bis(trifluoroacetate) (PIFA) converted some of the latter compounds into the corresponding dibenzo[e,g]isoindol-1-ones. A systematic study of the oxidative cyclization revealed the following reactivity trend: 3,4-dimethoxyphenyl ≫ 3-methoxyphenyl > 3,4,5-trimethoxyphenyl > 4-methoxyphenyl ≈ phenyl. Overall, the oxidative cyclization required at least two methoxy groups distributed in the aromatic rings, at least one of which had to be located para to the site of the cyclization.
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Affiliation(s)
- Amy A. van Loon
- Department of Chemistry, Hobart and William
Smith Colleges, Geneva, New York 14456, United
States
| | - Maeve K. Holton
- Department of Chemistry, Hobart and William
Smith Colleges, Geneva, New York 14456, United
States
| | - Catherine
R. Downey
- Department of Chemistry, Hobart and William
Smith Colleges, Geneva, New York 14456, United
States
| | - Taryn M. White
- Department of Chemistry, Hobart and William
Smith Colleges, Geneva, New York 14456, United
States
| | - Carly E. Rolph
- Department of Chemistry, Hobart and William
Smith Colleges, Geneva, New York 14456, United
States
| | - Stephen R. Bruening
- Department of Chemistry, Hobart and William
Smith Colleges, Geneva, New York 14456, United
States
| | - Guanqun Li
- Department of Chemistry, Hobart and William
Smith Colleges, Geneva, New York 14456, United
States
| | - Katherine M. Delaney
- Department of Chemistry, Hobart and William
Smith Colleges, Geneva, New York 14456, United
States
| | - Sarah J. Pelkey
- Department of Chemistry, Hobart and William
Smith Colleges, Geneva, New York 14456, United
States
| | - Erin T. Pelkey
- Department of Chemistry, Hobart and William
Smith Colleges, Geneva, New York 14456, United
States
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Hernández S, Moreno I, SanMartin R, Gómez G, Herrero MT, Domínguez E. Toward Safer Processes for C−C Biaryl Bond Construction: Catalytic Direct C−H Arylation and Tin-Free Radical Coupling in the Synthesis of Pyrazolophenanthridines. J Org Chem 2009; 75:434-41. [DOI: 10.1021/jo902257j] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Susana Hernández
- Kimika Organikoa II Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea, 644 P.K. 48080 Bilbao, Spain
| | - Isabel Moreno
- Kimika Organikoa II Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea, 644 P.K. 48080 Bilbao, Spain
| | - Raul SanMartin
- Kimika Organikoa II Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea, 644 P.K. 48080 Bilbao, Spain
| | - Germán Gómez
- Kimika Organikoa II Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea, 644 P.K. 48080 Bilbao, Spain
| | - María Teresa Herrero
- Kimika Organikoa II Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea, 644 P.K. 48080 Bilbao, Spain
| | - Esther Domínguez
- Kimika Organikoa II Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea, 644 P.K. 48080 Bilbao, Spain
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Serna S, Tellitu I, Domı́nguez E, Moreno I, SanMartin R. Iodine(III)-mediated aromatic amidation vs olefin amidohydroxylation. The amide N-substituent makes the difference. Tetrahedron 2004. [DOI: 10.1016/j.tet.2004.06.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Koser GF. The Synthesis of Heterocyclic Compounds with Hypervalent Organoiodine Reagents. ADVANCES IN HETEROCYCLIC CHEMISTRY 2004. [DOI: 10.1016/s0065-2725(03)86004-x] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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An alternative approach towards novel heterocycle-fused 1,4-diazepin-2-ones by an aromatic amidation protocol. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)01123-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Moreno I, Tellitu I, Etayo J, SanMartı́n R, Domı́nguez E. Novel applications of hypervalent iodine: PIFA mediated synthesis of benzo[ c ]phenanthiridines and benzo[ c ]phenanthridinones. Tetrahedron 2001. [DOI: 10.1016/s0040-4020(01)00459-8] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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