1
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Hann JL, Lyall CL, Kociok-Köhn G, Faverio C, Pantoş GD, Lewis SE. Unusual Regio- and Chemoselectivity in Oxidation of Pyrroles and Indoles Enabled by a Thianthrenium Salt Intermediate. Angew Chem Int Ed Engl 2024; 63:e202405057. [PMID: 38830180 DOI: 10.1002/anie.202405057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 06/05/2024]
Abstract
A dearomative oxidation of pyrroles to Δ3-pyrrol-2-ones is described, which employs a sulfoxide as oxidant, in conjunction with a carboxylic acid anhydride and a Brønsted acid additive. 3-substituted pyrroles undergo regioselective oxidation to give the product isomer in which oxygen has been introduced at the more hindered position. Regioselectivity is rationalized by a proposed mechanism that proceeds by initial thianthrenium introduction at the less-hindered pyrrole α-position, followed by distal attack of an oxygen nucleophile and subsequent elimination of thianthrene. The same reaction conditions are also able to effect a chemoselective oxidation of indoles to indolin-3-ones and additionally of indolin-3-ones to 2-hydroxyindolin-3-ones. Here again, the regio- and chemoselectivities are rationalized through the intermediacy of a thianthrenium salt.
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Affiliation(s)
- Jodie L Hann
- Department of Chemistry, University of Bath, Bath, BA2 7AY, United Kingdom
| | - Catherine L Lyall
- Research Facilities, University of Bath, Bath, BA2 7AY, United Kingdom
| | | | - Chiara Faverio
- Department of Chemistry, University of Bath, Bath, BA2 7AY, United Kingdom
| | - G Dan Pantoş
- Department of Chemistry, University of Bath, Bath, BA2 7AY, United Kingdom
| | - Simon E Lewis
- Department of Chemistry, University of Bath, Bath, BA2 7AY, United Kingdom
- Institute of Sustainability and Climate Change, University of Bath, Bath, BA2 7AY, United Kingdom
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2
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Fujimoto H, Nakayasu B, Tobisu M. Synthesis of γ-Lactams from Acrylamides by Single-Carbon Atom Doping Annulation. J Am Chem Soc 2023; 145:19518-19522. [PMID: 37642464 DOI: 10.1021/jacs.3c07052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
A protocol for single-carbon atom doping annulation is reported, which enables the conversion of acrylamides into homologated γ-lactams through the cleavage of two σ-bonds and the formation of four new σ-bonds at the single carbon center. The key strategy is the use of N-heterocyclic carbenes as an atomic carbon equivalent by acting as carbon atom donors through the loss of a 1,2-diimine moiety. Experimental and computational studies reveal that the reaction proceeds through a spirocyclic intermediate, followed by the disassembly of the N-heterocyclic carbene skeleton via proton transfer.
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Affiliation(s)
- Hayato Fujimoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
| | - Bunta Nakayasu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Mamoru Tobisu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
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3
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Lee JI, Park H. Synthetic Approaches to
N
‐Methoxy‐
N
‐methylamides. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jae In Lee
- Department of Chemistry College of Science and Technology, Duksung Women's University Seoul 01369 Republic of Korea
| | - Hyun Park
- Department of Chemistry College of Science and Technology, Duksung Women's University Seoul 01369 Republic of Korea
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4
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Breuer C, Lemke C, Schmitz J, Bartz U, Gütschow M. Synthesis and kinetic evaluation of ethyl acrylate and vinyl sulfone derived inhibitors for human cysteine cathepsins. Bioorg Med Chem Lett 2018; 28:2008-2012. [DOI: 10.1016/j.bmcl.2018.05.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 04/30/2018] [Accepted: 05/01/2018] [Indexed: 11/17/2022]
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5
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Barman G. Synthesis of N-Aryl Formyl Pyrrole from γ-Lactam Derivatives: A Highlight. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gopa Barman
- Department of Chemistry; Berhampore Girls' College; Berhampore 742101 India
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6
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Giustiniano M, Basso A, Mercalli V, Massarotti A, Novellino E, Tron GC, Zhu J. To each his own: isonitriles for all flavors. Functionalized isocyanides as valuable tools in organic synthesis. Chem Soc Rev 2018; 46:1295-1357. [PMID: 27983738 DOI: 10.1039/c6cs00444j] [Citation(s) in RCA: 292] [Impact Index Per Article: 48.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The term functionalized isocyanides refers to all those isocyanides in which a neighbouring functional group can finely tune the reactivity of the isocyano group or can be exploited in post-functionalization processes. In this manuscript, we have reviewed all the isocyanides in which the pendant functional group causes either deviation from or reinforces the normal reactivity of the isocyano group and categorized them to highlight their common features and differences. An analysis of their synthetic potential and the possible unexplored directions for future research studies is also addressed.
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Affiliation(s)
- Mariateresa Giustiniano
- Dipartimento di Farmacia, Università degli Studi di Napoli "Federico II", via D. Montesano 49, 80131 Napoli, Italy
| | - Andrea Basso
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, via Dodecaneso 31, 16143 Genova, Italy
| | - Valentina Mercalli
- Dipartimento di Scienze del Farmaco, Università degli Studi del Piemonte Orientale "A. Avogadro", largo Donegani 2, 28100 Novara, Italy.
| | - Alberto Massarotti
- Dipartimento di Scienze del Farmaco, Università degli Studi del Piemonte Orientale "A. Avogadro", largo Donegani 2, 28100 Novara, Italy.
| | - Ettore Novellino
- Dipartimento di Farmacia, Università degli Studi di Napoli "Federico II", via D. Montesano 49, 80131 Napoli, Italy
| | - Gian Cesare Tron
- Dipartimento di Scienze del Farmaco, Università degli Studi del Piemonte Orientale "A. Avogadro", largo Donegani 2, 28100 Novara, Italy.
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne, Switzerland.
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7
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Mohammadi B, Khorrami BR, Ghorbani M, Dusek M. A novel, three-component reaction to the synthesis of 3-amino-4-cyano-5-aryl-1H-pyrrole-2-carboxamides. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.11.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Huang J, Zheng J, Wu W, Li J, Ma Z, Ren Y, Jiang H. Palladium-Catalyzed Intermolecular Oxidative Cyclization of Allyltosylamides with AcOH: Assembly of 3-Pyrrolin-2-ones. J Org Chem 2017; 82:8191-8198. [PMID: 28686019 DOI: 10.1021/acs.joc.7b00804] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The first example of Pd-catalyzed oxidative cyclization of allyltosylamides with acetic acid is reported. This transformation involved C-N/C-C bond formation and provided 3-pyrrolin-2-ones in a one-pot manner with easy-operation, excellent atom economy and good yields. Mechanistic studies indicate that the reaction proceeds through intermolecular aminopalladation, migratory insertion, reinsertion and β-hydride elimination processes.
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Affiliation(s)
- Jiuzhong Huang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Jia Zheng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Zhiqiang Ma
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Yanwei Ren
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology , Guangzhou 510640, P. R. China
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9
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Wang G, Chen R, Wu M, Sun S, Luo X, Chen Z, Guo H, Chong C, Xing Y. Efficient one-pot synthesis of 1,3-dihydro-2H-pyrrol-2-one derivatives via aza-oxyallylic cations. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.01.048] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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10
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Bouzrati-Zerelli M, Zivic N, Dumur F, Gigmes D, Graff B, Fouassier JP, Lalevée J. New violet to yellow light sensitive diketo pyrrolo–pyrrole photoinitiators: high performance systems with unusual bleaching properties and solubility in water. Polym Chem 2017. [DOI: 10.1039/c7py00202e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New high performance photoinitiating systems for visible light exhibiting excellent bleaching properties and water solubility are proposed.
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Affiliation(s)
- Mariem Bouzrati-Zerelli
- Institut de Science des Matériaux de Mulhouse IS2 M
- UMR CNRS 7361
- UHA
- 68057 Mulhouse Cedex
- France
| | - Nicolas Zivic
- Aix Marseille Univ
- CNRS
- ICR UMR 7273
- F-13397 Marseille
- France
| | - Frédéric Dumur
- Aix Marseille Univ
- CNRS
- ICR UMR 7273
- F-13397 Marseille
- France
| | - Didier Gigmes
- Aix Marseille Univ
- CNRS
- ICR UMR 7273
- F-13397 Marseille
- France
| | - Bernadette Graff
- Institut de Science des Matériaux de Mulhouse IS2 M
- UMR CNRS 7361
- UHA
- 68057 Mulhouse Cedex
- France
| | - Jean Pierre Fouassier
- Institut de Science des Matériaux de Mulhouse IS2 M
- UMR CNRS 7361
- UHA
- 68057 Mulhouse Cedex
- France
| | - Jacques Lalevée
- Institut de Science des Matériaux de Mulhouse IS2 M
- UMR CNRS 7361
- UHA
- 68057 Mulhouse Cedex
- France
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11
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Truong Nguyen H, Nguyen Chau DK, Tran PH. A green and efficient method for the synthesis of pyrroles using a deep eutectic solvent ([CholineCl][ZnCl2]3) under solvent-free sonication. NEW J CHEM 2017. [DOI: 10.1039/c7nj02396k] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A green and efficient method for Paal–Knorr pyrrole synthesis has been developed under mild conditions.
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Affiliation(s)
- Hai Truong Nguyen
- Department of Organic Chemistry
- Faculty of Chemistry
- University of Sciences
- Vietnam National University
- Ho Chi Minh City 70000
| | - Duy-Khiem Nguyen Chau
- Department of Organic Chemistry
- Faculty of Chemistry
- University of Sciences
- Vietnam National University
- Ho Chi Minh City 70000
| | - Phuong Hoang Tran
- Department of Organic Chemistry
- Faculty of Chemistry
- University of Sciences
- Vietnam National University
- Ho Chi Minh City 70000
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12
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Sakai N, Suzuki H, Hori H, Ogiwara Y. One-pot preparation of pyrrole derivatives via the copper-catalyzed [4+1] annulation of propargylic amines with ethyl glyoxylate and phenylglyoxal in the presence of piperidine. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2016.11.097] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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13
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Raju P, Mohanakrishnan AK. Synthetic Approach to Dictyodendrins: A Facile Synthesis of Pyrrolo[2,3-c]carbazole, Pyrrolodibenzothiophene, and Benzo[e]indole. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600674] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Potharaju Raju
- Department of Organic Chemistry; University of Madras; Guindy Campus 600025 Chennai Tamil Nadu India
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14
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Truax NJ, Banales Mejia F, Kwansare DO, Lafferty MM, Kean MH, Pelkey ET. Synthesis of Benzo[a]carbazoles and an Indolo[2,3-a]carbazole from 3-Aryltetramic Acids. J Org Chem 2016; 81:6808-15. [DOI: 10.1021/acs.joc.6b01072] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Nathanyal J. Truax
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Fernando Banales Mejia
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Deborah O. Kwansare
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Megan M. Lafferty
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, New York 14456, United States
| | - Maeve H. Kean
- 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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15
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Ibrar A, Khan I, Abbas N, Farooq U, Khan A. Transition-metal-free synthesis of oxazoles: valuable structural fragments in drug discovery. RSC Adv 2016. [DOI: 10.1039/c6ra19324b] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
This review article encapsulates the recent developments in the metal-free approaches used to construct oxazole moiety.
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Affiliation(s)
- Aliya Ibrar
- Department of Chemistry
- COMSATS Institute of Information Technology
- Abbottabad-22060
- Pakistan
| | - Imtiaz Khan
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad-45320
- Pakistan
| | - Naeem Abbas
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad-45320
- Pakistan
| | - Umar Farooq
- Department of Chemistry
- COMSATS Institute of Information Technology
- Abbottabad-22060
- Pakistan
| | - Ajmal Khan
- Department of Chemistry
- COMSATS Institute of Information Technology
- Abbottabad-22060
- Pakistan
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16
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Howard JK, Rihak KJ, Bissember AC, Smith JA. The Oxidation of Pyrrole. Chem Asian J 2015; 11:155-67. [DOI: 10.1002/asia.201500659] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Indexed: 01/16/2023]
Affiliation(s)
- James K. Howard
- School of Chemistry; University of Leeds; Woodhouse Lane Leeds LS2 9JT UK
| | - Kieran J. Rihak
- School of Physical Sciences-Chemistry; University of Tasmania, Hobart; Tasmania 7001 Australia
| | - Alex C. Bissember
- School of Physical Sciences-Chemistry; University of Tasmania, Hobart; Tasmania 7001 Australia
| | - Jason A. Smith
- School of Physical Sciences-Chemistry; University of Tasmania, Hobart; Tasmania 7001 Australia
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17
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Sakai N, Hori H, Ogiwara Y. Copper(II)-Catalyzed [4+1] Annulation of Propargylamines withN,O-Acetals: Entry to the Synthesis of Polysubstituted Pyrrole Derivatives. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500098] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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18
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Pelkey ET, Pelkey SJ, Greger JG. De Novo Synthesis of 3-Pyrrolin-2-Ones. ADVANCES IN HETEROCYCLIC CHEMISTRY 2015. [DOI: 10.1016/bs.aihch.2015.04.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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19
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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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20
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Ran RQ, He J, Xiu SD, Wang KB, Li CY. Synthesis of 3-Pyrrolin-2-ones by Rhodium-Catalyzed Transannulation of 1-Sulfonyl-1,2,3-triazole with Ketene Silyl Acetal. Org Lett 2014; 16:3704-7. [PMID: 25004242 DOI: 10.1021/ol501514b] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Rui-Qiao Ran
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher
Education District, Hangzhou 310018, China
| | - Jun He
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher
Education District, Hangzhou 310018, China
| | - Shi-Dong Xiu
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher
Education District, Hangzhou 310018, China
| | - Kai-Bing Wang
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher
Education District, Hangzhou 310018, China
| | - Chuan-Ying Li
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher
Education District, Hangzhou 310018, China
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21
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Kancharla P, Reynolds KA. Synthesis of 2,2′-bipyrrole-5-carboxaldehydes and their application in the synthesis of B-ring functionalized prodiginines and tambjamines. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.07.067] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Bommegowda YK, Lingaraju GS, Thamas S, Vinay Kumar KS, Pradeepa Kumara CS, Rangappa KS, Sadashiva MP. Weinreb amide as an efficient reagent in the one pot synthesis of benzimidazoles and benzothiazoles. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.03.075] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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23
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Lundrigan T, Jackson CL, Uddin MI, Tucker LA, Ali AAS, Linden A, Cameron TS, Thompson A. Synthesis of heteroleptic pyrrolide/bipyridyl complexes of ruthenium(II). CAN J CHEM 2012. [DOI: 10.1139/v2012-045] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The synthesis and characterization of the first heteroleptic pyrrolide/2,2′-bipyridyl complexes of ruthenium(II) are reported. Pyrroles substituted at the 2-position with X = O functionality react with Ru(bipy)2Cl2·2H2O to form complexes in which the pyrrolide ligands chelate to Ru(II). The library of pyrroles includes 2-formyl, 2-keto, 2-carboxylato, 2-sulfinyl, and 2-sulfonyl derivatives.
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Affiliation(s)
- Travis Lundrigan
- Department of Chemistry, Dalhousie University, PO BOX 15000, Halifax, NS B3H 4R2, Canada
| | - Carla L.M. Jackson
- Department of Chemistry, Dalhousie University, PO BOX 15000, Halifax, NS B3H 4R2, Canada
| | - Md. Imam Uddin
- Department of Chemistry, Dalhousie University, PO BOX 15000, Halifax, NS B3H 4R2, Canada
| | - Lloyd A. Tucker
- Department of Chemistry, Dalhousie University, PO BOX 15000, Halifax, NS B3H 4R2, Canada
| | - Adeeb Al-Sheikh Ali
- Department of Chemistry, Dalhousie University, PO BOX 15000, Halifax, NS B3H 4R2, Canada
- Chemistry Department, Taibah University, Almadinah Almunawarah, P.O. Box 30002, Saudi Arabia
| | - Anthony Linden
- Institute of Organic Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - T. Stanley Cameron
- Department of Chemistry, Dalhousie University, PO BOX 15000, Halifax, NS B3H 4R2, Canada
| | - Alison Thompson
- Department of Chemistry, Dalhousie University, PO BOX 15000, Halifax, NS B3H 4R2, Canada
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24
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Greger JG, Yoon-Miller SJP, Bechtold NR, Flewelling SA, MacDonald JP, Downey CR, Cohen EA, Pelkey ET. Synthesis of unsymmetrical 3,4-diaryl-3-pyrrolin-2-ones utilizing pyrrole Weinreb amides. J Org Chem 2011; 76:8203-14. [PMID: 21913662 DOI: 10.1021/jo2013516] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A regiocontrolled synthesis of unsymmetrical 3,4-diaryl-3-pyrrolin-2-ones has been achieved in three steps from 1,2-diaryl-1-nitroethenes with pyrrole-2-carboxamides (pyrrole Weinreb amides) serving as the key linchpin intermediates. Two different methods for the preparation of the requisite nitroalkenes were investigated: (1) modified Henry reaction between arylnitromethanes and arylimines; and (2) Suzuki-Miyaura cross-coupling reaction of 2-aryl-1-bromo-1-nitroethenes with arylboronic acids. Some difficulty was encountered in the preparation of arylnitromethanes, thus leading to the exploration of a cross-coupling strategy that proved more useful. A Barton-Zard pyrrole cyclocondensation reaction between 1,2-diaryl-1-nitroethenes and N-methoxy-N-methyl-2-isocyanoacetamide gave the corresponding pyrrole Weinreb amides, which were then converted into the desired 3-pyrrolin-2-ones in two steps. Overall, this method allowed for the construction of 3,4-diaryl-3-pyrrolin-2-ones with complete regiocontrol of the substituents with respect to the lactam carbonyl. The utility of this synthetic methodology was demonstrated by the preparation of eight unsymmetrical and symmetrical 3,4-diaryl-3-pyrrolin-2-ones including the N-H lactam analogue of the selective COX-II inhibitor, rofecoxib.
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Affiliation(s)
- Jessica G Greger
- Department of Chemistry, Hobart College, Geneva, New York 14456, United States
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Lygin AV, de Meijere A. Isocyanides in the synthesis of nitrogen heterocycles. Angew Chem Int Ed Engl 2011; 49:9094-124. [PMID: 21053220 DOI: 10.1002/anie.201000723] [Citation(s) in RCA: 412] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Isocyanides have long proved themselves to be irreplaceable building blocks in modern organic chemistry. The unique features of the isocyano group make isocyanides particularly useful for the synthesis of a number of important classes of nitrogen heterocycles, such as pyrroles, indoles, and quinolines. Several cocyclizations of isocyanides via zwitterions and radical intermediates as well as transition-metal-catalyzed syntheses of different types of heterocycles have recently been developed. Methods starting from isocyanides often have distinct advantages over alternative approaches to the same heterocycles because of their enhanced convergence, the great simplicity of most of the operations with them, and the great variety of isocyanides readily available for use. Isocyanides have also been used in some enantioselective syntheses of chiral heterocyclic compounds, including natural products as well as precursors thereof.
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Affiliation(s)
- Alexander V Lygin
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany
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Gulevich AV, Zhdanko AG, Orru RVA, Nenajdenko VG. Isocyanoacetate Derivatives: Synthesis, Reactivity, and Application. Chem Rev 2010; 110:5235-331. [DOI: 10.1021/cr900411f] [Citation(s) in RCA: 470] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Anton V. Gulevich
- Department of Chemistry, Moscow State University, Leninskie Gory, Moscow 119991, Russia, and Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Alexander G. Zhdanko
- Department of Chemistry, Moscow State University, Leninskie Gory, Moscow 119991, Russia, and Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Romano V. A. Orru
- Department of Chemistry, Moscow State University, Leninskie Gory, Moscow 119991, Russia, and Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Valentine G. Nenajdenko
- Department of Chemistry, Moscow State University, Leninskie Gory, Moscow 119991, Russia, and Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
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Banala S, Wurst K, Kräutler B. 3,5-Dihydro-2H-thieno[2,3-c]pyrrole 1,1-Dioxide - A New Simple Pyrrole Unit. Preliminary Communication. Helv Chim Acta 2010. [DOI: 10.1002/hlca.200900362] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Kommidi H, Balasubramaniam S, Aidhen IS. Weinreb amide based synthetic equivalents for convenient access to 4-aryl-1,2,3,4-tetrahydroisoquinolines. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.03.074] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Wu J, Chen W, Hu M, Zou H, Yu Y. Synthesis of Polysubstituted 5-Aminooxazoles from α- Diazocarbonyl Esters and α-Isocyanoacetamides. Org Lett 2010; 12:616-8. [DOI: 10.1021/ol902850a] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jianwei Wu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Wenteng Chen
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Miao Hu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Hongbin Zou
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Yongping Yu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
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Yoon-Miller SJP, Dorward KM, White KP, Pelkey ET. Suzuki-Miyaura arylations of tetramic acid sulfonates: Evaluation of lactam protection, sulfonate esters, and sterics. J Heterocycl Chem 2009. [DOI: 10.1002/jhet.96] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Mroczkiewicz M, Ostaszewski R. A new and general method for the synthesis of tripeptide aldehydes based on the multi-component Ugi reaction. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.03.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ono N. Barton-Zard Pyrrole Synthesis and Its Application to Synthesis of Porphyrins, Polypyrroles, and Dipyrromethene Dyes. HETEROCYCLES 2008. [DOI: 10.3987/rev-07-622] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Cui SL, Wang J, Wang YG. Copper-catalyzed multicomponent reaction: facile access to functionalized 5-arylidene-2-imino-3-pyrrolines. Org Lett 2007; 9:5023-5. [PMID: 17979278 DOI: 10.1021/ol702241e] [Citation(s) in RCA: 98] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of a novel class of 2-imino-5-arylidene-3-pyrrolines via a copper-catalyzed multicomponent reaction of sulfonyl azides with alkynes and aziridines is described. The protocol is efficient and general.
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Affiliation(s)
- Sun-Liang Cui
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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