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Ahmad F, Ranga PK, Fatma S, Vijaya Anand R. Domino Approach to Heterocycles-Based Unsymmetrical Triarylmethanes through Heteroannulation of 2-(2-Enynyl)-pyridines with Enaminones. J Org Chem 2024. [PMID: 39137191 DOI: 10.1021/acs.joc.4c01006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
Herein, we report a copper-catalyzed protocol to access unsymmetrical triarylmethanes containing both indolizine and the chromone scaffolds in the same molecule via a 5-endo-dig cyclization of 2-(2-enynyl)-pyridines followed by reaction with 2-hydroxyaryl enaminones. A variety of 2-hydroxyaryl enaminones and 2-(2-enynyl)-pyridines were subjected to reaction under the optimal reaction conditions, and the respective triarylmethanes were obtained in good to excellent yields.
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Affiliation(s)
- Feroz Ahmad
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S.A.S. Nagar, Manauli (PO), Mohali 140306, Punjab, India
| | - Pavit K Ranga
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S.A.S. Nagar, Manauli (PO), Mohali 140306, Punjab, India
| | - Shaheen Fatma
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S.A.S. Nagar, Manauli (PO), Mohali 140306, Punjab, India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Mohali, Sector 81, S.A.S. Nagar, Manauli (PO), Mohali 140306, Punjab, India
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2
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Fraňová P, Marchalín Š, Šafář P, Cvečko M, Moncol J, Žídeková I, Othman M, Daïch A. Smart and concise entry to chiral spiro[cyclopentane-indolizidine]-tetraol diastereomers as a new aza-spirocyclic framework. NEW J CHEM 2021. [DOI: 10.1039/d1nj02180j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of chiral oxacarba-spiroindolizidine tetraols was achieved by alkene cis-dihydroxylation, diol protection, and lactam carbonyl reduction followed ultimately by acetonide deprotection.
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Affiliation(s)
- Paula Fraňová
- Department of Organic Chemistry, Faculty of Chemical & Food Technology, Slovak University of Technology, Radlinského 9, SK-81237 Bratislava, Slovakia
| | - Štefan Marchalín
- Department of Organic Chemistry, Faculty of Chemical & Food Technology, Slovak University of Technology, Radlinského 9, SK-81237 Bratislava, Slovakia
- Normandie Univ, UNILEHAVRE, URCOM EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université Le Havre Normandie, BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Peter Šafář
- Department of Organic Chemistry, Faculty of Chemical & Food Technology, Slovak University of Technology, Radlinského 9, SK-81237 Bratislava, Slovakia
| | - Matej Cvečko
- Department of Organic Chemistry, Faculty of Chemical & Food Technology, Slovak University of Technology, Radlinského 9, SK-81237 Bratislava, Slovakia
| | - Ján Moncol
- Department of Inorganic Chemistry, Faculty of Chemical & Food Technology, Slovak University of Technology, Radlinského 9, SK-81237, Bratislava, Slovakia
| | - Ivana Žídeková
- Central Laboratories, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, SK – 81237 Bratislava, Slovakia
| | - Mohamed Othman
- Normandie Univ, UNILEHAVRE, URCOM EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université Le Havre Normandie, BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Adam Daïch
- Normandie Univ, UNILEHAVRE, URCOM EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université Le Havre Normandie, BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
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3
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Nair PN, Swathi V, Nishigandha G, Sridhar B, Reddy JG, Reddy BVS. Construction of Oxa-Bridged Tetracyclic Frameworks through a Prins Bicyclic Annulation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801788] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Preethi N. Nair
- Fluoro & Agrochemicals; CSIR-Indian Institute of Chemical Technology; 500 007 Hyderabad India
| | - Vangala Swathi
- Fluoro & Agrochemicals; CSIR-Indian Institute of Chemical Technology; 500 007 Hyderabad India
| | - Ghaytadak Nishigandha
- Fluoro & Agrochemicals; CSIR-Indian Institute of Chemical Technology; 500 007 Hyderabad India
| | - Balasubramanian Sridhar
- Laboratory of X-ray Crystallography; CSIR-Indian Institute of Chemical Technology; 500 007 Hyderabad India
| | - Jithender G Reddy
- Academy of Scientific and Innovative Research (AcSIR); New Delhi - 110025 India
| | - Basi V. Subba Reddy
- Fluoro & Agrochemicals; CSIR-Indian Institute of Chemical Technology; 500 007 Hyderabad India
- Centre for NMR and Structural Chemistry; CSIR-Indian Institute of Chemical Technology; 500 007 Hyderabad India
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4
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Fan Q, Li P, Yan H. Photophysical properties of 2,6-unsubstituented 1,4-dihydropyridines: Experimental and theoretical studies. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.03.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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5
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Lepitre T, Le Biannic R, Othman M, Lawson AM, Daïch A. Metal-Free Cascade Approach toward Polysubstituted Indolizines from Chromone-Based Michael Acceptors. Org Lett 2017; 19:1978-1981. [PMID: 28394140 DOI: 10.1021/acs.orglett.7b00309] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
An efficient cascade transformation toward indolizine-based molecules has been developed. This process leads to the rapid construction of two C-N bonds and one C-C bond without the need of any metal catalysis. The approach involves easily accessible chromone-based Michael acceptors and propargylamine derivatives as starting materials. This cascade constitutes a novel and very competitive alternative to the well reported strategies using pyridine or pyrrole derivatives for accessing the indolizine ring with substituents at uncommon C-positions.
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Affiliation(s)
- Thomas Lepitre
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Raphael Le Biannic
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Mohamed Othman
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Ata Martin Lawson
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Adam Daïch
- UNILEHAVRE, FR 3038 CNRS, URCOM, Normandie Université , Le Havre, 76600, France.,EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université du Havre , BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
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6
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Li Y, Tur F, Nielsen RP, Jiang H, Jensen F, Jørgensen KA. Enantioselective Formal [4+2] Cycloadditions to 3-Nitroindoles by Trienamine Catalysis: Synthesis of Chiral Dihydrocarbazoles. Angew Chem Int Ed Engl 2015; 55:1020-4. [PMID: 26636665 DOI: 10.1002/anie.201509693] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 11/16/2015] [Indexed: 01/03/2023]
Abstract
The first enantioselective formal [4+2] cycloadditions of 3-nitroindoles are presented. By using 3-nitroindoles in combination with an organocatalyst, chiral dihydrocarbazole scaffolds are formed in moderate to good yields (up to 87%) and enantioselectivities (up to 97% ee). The reaction was extended to include enantioselective [4+2] cycloadditions of 3-nitrobenzothiophene. The reaction proceeds through a [4+2] cycloaddition/elimination cascade under mild reaction conditions. Furthermore, a diastereoselective reduction of an enantioenriched cycloadduct is presented. The mechanism of the reaction is discussed based on experimental and computational studies.
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Affiliation(s)
- Yang Li
- Department of Chemistry, Aarhus University, 8000, Aarhus C, Denmark
| | - Fernando Tur
- Department of Chemistry, Aarhus University, 8000, Aarhus C, Denmark
| | | | - Hao Jiang
- Department of Chemistry, Aarhus University, 8000, Aarhus C, Denmark
| | - Frank Jensen
- Department of Chemistry, Aarhus University, 8000, Aarhus C, Denmark
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7
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Li Y, Tur F, Nielsen RP, Jiang H, Jensen F, Jørgensen KA. Enantioselective Formal [4+2] Cycloadditions to 3-Nitroindoles by Trienamine Catalysis: Synthesis of Chiral Dihydrocarbazoles. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509693] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yang Li
- Department of Chemistry; Aarhus University; 8000 Aarhus C Denmark
| | - Fernando Tur
- Department of Chemistry; Aarhus University; 8000 Aarhus C Denmark
| | | | - Hao Jiang
- Department of Chemistry; Aarhus University; 8000 Aarhus C Denmark
| | - Frank Jensen
- Department of Chemistry; Aarhus University; 8000 Aarhus C Denmark
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8
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Rajesh K, Iniyavan P, Venkatesh M, Palakshi Reddy B, Balaji GL, Sarveswari S, Vijayakumar V. Regioselective synthesis of novel 2-chloroquinoline-based methyl 4-(4-hydroxyphenyl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylates. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-013-1275-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Kucukdisli M, Opatz T. Two-Step Synthesis of 2-Aminoindolizines from 2-Alkylpyridines. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402618] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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10
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Rajesh K, Iniyavan P, Sarveswari S, Vijayakumar V. Regioselective synthesis of novel 2-chloroquinoline derivatives of 1,4-dihydropyridines. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-013-1085-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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11
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Marchalín Š, Valigura D, Varečka Ľ, Lakatoš B, Vaneková M, Baran P, Lawson AM, Daïch A. Synthesis of novel chiral 1,4-dihydropyridinyl Schiff-base ligands, with characterization and evaluation of calcium channel blocker activity. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1164-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Elinson MN, Nasybullin RF, Nikishin GI. Sodium acetate catalyzed tandem Knoevenagel–Michael multicomponent reaction of aldehydes, 2-pyrazolin-5-ones, and cyano-functionalized C–H acids: Facile and efficient way to 3-(5-hydroxypyrazol-4-yl)-3-aryl-propionitriles. CR CHIM 2013. [DOI: 10.1016/j.crci.2013.03.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Sivakumar S, Kanchithalaivan S, Kumar RR. A one-pot three-component domino protocol for the synthesis of penta-substituted 4H-pyrans. RSC Adv 2013. [DOI: 10.1039/c3ra41510d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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14
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Facile domino reactions in the statistically controlled product- and stereoselective synthesis of densely functionalized cis-1,4-cyclohexa-1,4-dienes and trans,trans-trisubstituted-1,2,5,6-tetrahydropyridines. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.05.071] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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16
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Lahoz IR, López CS, Navarro-Vázquez A, Cid MM. Experimental and Computational Exploration of Indolizinyl Carbene Generation. A Route to Biindolizines. J Org Chem 2011; 76:3266-73. [DOI: 10.1021/jo200157q] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Inmaculada R Lahoz
- Departamento de Química Orgánica, Universidade de Vigo, Campus Lagoas-Marcosende, 36310 Vigo, Spain
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17
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Jiang B, Wang X, Shi F, Tu SJ, Li G. New multicomponent cyclization: domino synthesis of pentasubstituted pyridines under solvent-free conditions. Org Biomol Chem 2011; 9:4025-8. [DOI: 10.1039/c0ob01258k] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Convenient synthesis of polyfunctional dihydrothiophenes with tandem reaction of 1,3-thiazolidinedione, aldehyde, arylamine and ethyl cyanoacetate. Mol Divers 2010; 15:115-23. [DOI: 10.1007/s11030-010-9278-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2009] [Accepted: 08/30/2010] [Indexed: 11/26/2022]
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19
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Sun J, Xia EY, Wu Q, Yan CG. Synthesis of ammonium S–S bond linked dipyridinedionates via four-component reactions of cyanoacetamide, aldehyde, amine and 1,3-thiazolidinedione. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.07.051] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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20
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Jiang B, Li C, Tu SJ, Shi F. Iodine-Promoted Domino Reaction Leading to N-Substituted 2-Aminoquinoline-3-carbonitriles under Microwave Irradiation. ACTA ACUST UNITED AC 2010; 12:482-7. [DOI: 10.1021/cc1000192] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bo Jiang
- School of Chemistry and Chemical Engineering, Xuzhou Normal University, Xuzhou, Jiangsu, 221116, P.R. China, and College of Chemistry, Chemical Engineering, and Materials Science; Suzhou University, Suzhou, 215123, P.R. China
| | - Chao Li
- School of Chemistry and Chemical Engineering, Xuzhou Normal University, Xuzhou, Jiangsu, 221116, P.R. China, and College of Chemistry, Chemical Engineering, and Materials Science; Suzhou University, Suzhou, 215123, P.R. China
| | - Shu-Jiang Tu
- School of Chemistry and Chemical Engineering, Xuzhou Normal University, Xuzhou, Jiangsu, 221116, P.R. China, and College of Chemistry, Chemical Engineering, and Materials Science; Suzhou University, Suzhou, 215123, P.R. China
| | - Feng Shi
- School of Chemistry and Chemical Engineering, Xuzhou Normal University, Xuzhou, Jiangsu, 221116, P.R. China, and College of Chemistry, Chemical Engineering, and Materials Science; Suzhou University, Suzhou, 215123, P.R. China
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Dong HS, Wang HC, Gao ZL, Li RS, Cui FH. Tandem Michael addition/imino-nitrile cyclization synthesis of 2-amino-6-(1-aryl-5-methyl-1 H-1,2,3-triazol-4yl)-4-phenylpyridine-3-carbonitrile. J Heterocycl Chem 2010. [DOI: 10.1002/jhet.336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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Lahoz IR, Sicre C, Navarro-Vázquez A, López CS, Cid MM. Mechanistic Investigation on the Formation of Indolizines from 2-Enynylpyridines. Org Lett 2009; 11:4802-5. [DOI: 10.1021/ol901760a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Inma R. Lahoz
- Departamento de Química Orgánica, Facultade de Química, Campus Lagoas-Marcosende, 36310 Vigo, Spain
| | - Cristina Sicre
- Departamento de Química Orgánica, Facultade de Química, Campus Lagoas-Marcosende, 36310 Vigo, Spain
| | - Armando Navarro-Vázquez
- Departamento de Química Orgánica, Facultade de Química, Campus Lagoas-Marcosende, 36310 Vigo, Spain
| | - Carlos Silva López
- Departamento de Química Orgánica, Facultade de Química, Campus Lagoas-Marcosende, 36310 Vigo, Spain
| | - María-Magdalena Cid
- Departamento de Química Orgánica, Facultade de Química, Campus Lagoas-Marcosende, 36310 Vigo, Spain
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Sun J, Zhang LL, Xia EY, Yan CG. Synthesis of dihydrothiophenes or spirocyclic compounds by domino reactions of 1,3-thiazolidinedione. J Org Chem 2009; 74:3398-401. [PMID: 19326904 DOI: 10.1021/jo900215a] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The domino reactions of 1,3-thiazolidinedione, malononitrile, and aromatic aldehydes in the presence of different organic amines were studied. Secondary amines such as pyrrolidine, piperidine, morpholine, and dimethylamine and primary amines such as benzylamine yield dihydrothiophene derivatives through a domino ring-opening/recyclization reaction of 1,3-thiazolidinedione. Bulky diethylamine, diisopropylamine, and 1,4-diazabicyclo[2.2.2]octane give spirocyclohexano-1,3-thiazole through a double Michael addition/spirocyclization reaction.
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Affiliation(s)
- Jing Sun
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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24
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Gromov SP, Fomina MV. Advances in the synthesis of 4-aryl- and 4-hetarylpyridines. RUSSIAN CHEMICAL REVIEWS 2009. [DOI: 10.1070/rc2008v077n12abeh003783] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Yan CG, Wang QF, Song XK, Sun J. One-Step Synthesis of Pyrido[1,2-a]benzimidazole Derivatives by a Novel Multicomponent Reaction of Chloroacetonitrile, Malononitrile, Aromatic Aldehyde, and Pyridine. J Org Chem 2008; 74:710-8. [DOI: 10.1021/jo802166t] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chao Guo Yan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Qi Fang Wang
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Xiao Kai Song
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Jing Sun
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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Seregin IV, Schammel AW, Gevorgyan V. Multisubstituted N-fused heterocycles via transition metal-catalyzed cycloisomerization protocols. Tetrahedron 2008; 64:6876-6883. [PMID: 19606205 PMCID: PMC2598400 DOI: 10.1016/j.tet.2008.04.023] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Two complementary protocols for assembly of multisubstituted N-fused heterocycles have been developed. It was demonstrated that 1,3-disubstituted N-fused heterocycles, including indolizines, pyrroloquinoxalines, and pyrrolothiazoles can easily be synthesized via an exceptionally mild and efficient method involving a novel silver-catalyzed cycloizomerization of propargyl-containing heterocycles. Alternatively, 1,2-disubstituted heterocycles can be accessed through the novel cascade transformation involving an alkyne-vinylidene isomerization with concomitant 1,2-shift of hydrogen, silyl, stannyl, or germyl groups. This mild and simple method allows for selective and highly efficient synthesis of indolizines, pyrroloisoquinolines, pyrroloquinoxalines, pyrrolopyrazines, and pyrrolothiazoles.
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Affiliation(s)
- Ilya V. Seregin
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor St., Chicago, Illinois 60607-7061
| | - Alex W. Schammel
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor St., Chicago, Illinois 60607-7061
| | - Vladimir Gevorgyan
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor St., Chicago, Illinois 60607-7061
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Bunnelle EM, Smith CR, Lee SK, Singaram SW, Rhodes AJ, Sarpong R. Pt-catalyzed cyclization/migration of propargylic alcohols for the synthesis of 3(2H)-furanones, pyrrolones, indolizines, and indolizinones. Tetrahedron 2008; 64:7008-7014. [PMID: 22593605 PMCID: PMC3351138 DOI: 10.1016/j.tet.2008.02.103] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Several heterocycles such as furanones, pyrrolones, and indolizines, which are of pharmacological importance, are easily accessed via the Pt(II)-catalyzed heterocyclization/1,2-migration of propargylic ketols or hydroxy imine derivatives. This method sidesteps the challenges of traditional heteroaromatic oxygenation strategies such as regioselectivity and functional group tolerance in the syntheses of these heterocycles.
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Affiliation(s)
- Eric M. Bunnelle
- Department of Chemistry, University of California, Berkeley, CA 94720, USA
| | - Cameron R. Smith
- Department of Chemistry, University of California, Berkeley, CA 94720, USA
| | - Sharon K. Lee
- Department of Chemistry, University of California, Berkeley, CA 94720, USA
| | | | - Allison J. Rhodes
- Department of Chemistry, University of California, Berkeley, CA 94720, USA
| | - Richmond Sarpong
- Department of Chemistry, University of California, Berkeley, CA 94720, USA
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Electrocatalytic tandem Knoevenagel–Michael reaction of 3-methyl-2-pyrazolin-5-ones, aryl aldehydes and cyano-functionalized C–H acids: Facile and convenient multicomponent way to substituted 3-(5-hydroxy-3-methylpyrazol-4-yl)-3-arylpropionitriles. Electrochim Acta 2008. [DOI: 10.1016/j.electacta.2008.01.066] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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30
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Yan CG, Song XK, Wang QF, Sun J, Siemeling U, Bruhn C. One-step synthesis of polysubstituted benzene derivatives by multi-component cyclization of α-bromoacetate, malononitrile and aromatic aldehydes. Chem Commun (Camb) 2008:1440-2. [DOI: 10.1039/b718171j] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Rečnik S, Meden A, Stanovnik B, Svete J. Ring Contractions of 3-Azido-4H-quinolizin-4-ones and 3-Azido-4H-azino[1,2 - x]pyrimidin-4-ones: a Novel Approach to 3-Aminoindolizines and their Aza Analogues. Aust J Chem 2008. [DOI: 10.1071/ch07318] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Thermal transformations of 3-azido-4H-quinolizin-4-ones 4a,b and 3-azido-4H-azino[1,2–x]pyrimidin-4-ones 4c,d, available from the corresponding heteroarylamines 2a–d, were studied. The reaction products were mostly dependent on the solvent. Thus, heating of 3-azido-1-cyano-4H-quinolizin-4-one (4a) in toluene afforded 2-(pyridin-2-yl)fumaronitrile 5a, whereas 3-amino-1-cyano-4H-quinolizin-4-one (8) was obtained on treatment of 4a in a mixture of toluene and trifluoroacetic anhydride. However, heating of 4a in acetic anhydride and in acetic acid resulted in a ring contraction to produce 3-(diacetylamino)indolizine-1-carbonitrile 6a and 3-(acetylamino)indolizine-1-carbonitrile 7a, respectively. Similarly, ring contractions took place on heating ethyl 3-azido-4-oxo-4H-quinolizin-1-carboxylate 4b and 3-azido-4H-azino[1,2–x]pyrimidin-4-ones 4c,d in acetic anhydride or acetic acid to produce the N-acetylated 3-aminoindolizine derivatives 6b, 7b and 3-aminoimidazo[1,2–x]azine derivatives 6c,d in 30–89% yields. The structures of compounds 5–8 were determined by NMR spectroscopy and X-ray diffraction.
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Ionkin AS, Marshall WJ, Fish BM, Schiffhauer MF, Davidson F, McEwen CN, Keys DE. Aromatic 1H-[1,2]Diphosphole with a Planar Tricoordinated Phosphorus, Plus η2-Coordination Mode between Ruthenium(0) and a Phosphaalkene. Organometallics 2007. [DOI: 10.1021/om7005084] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Alex S. Ionkin
- DuPont Central Research & Development, Experimental Station, Wilmington, Delaware 19880-0328
| | - William J. Marshall
- DuPont Central Research & Development, Experimental Station, Wilmington, Delaware 19880-0328
| | - Brian M. Fish
- DuPont Central Research & Development, Experimental Station, Wilmington, Delaware 19880-0328
| | - Matthew F. Schiffhauer
- DuPont Central Research & Development, Experimental Station, Wilmington, Delaware 19880-0328
| | - Fredric Davidson
- DuPont Central Research & Development, Experimental Station, Wilmington, Delaware 19880-0328
| | - Charles N. McEwen
- DuPont Central Research & Development, Experimental Station, Wilmington, Delaware 19880-0328
| | - Dalen E. Keys
- DuPont Central Research & Development, Experimental Station, Wilmington, Delaware 19880-0328
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Seregin IV, Schammel AW, Gevorgyan V. Base- and ligand-free room-temperature synthesis of N-fused heteroaromatic compounds via the transition metal-catalyzed cycloisomerization protocol. Org Lett 2007; 9:3433-6. [PMID: 17637023 PMCID: PMC2525811 DOI: 10.1021/ol701464j] [Citation(s) in RCA: 136] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new practical method for the synthesis of N-fused heterocycles via the transition metal-catalyzed cycloisomerization of heterocyles possessing a propagyl group has been developed. This very mild, base- and ligand-free method allows for the synthesis of diverse fused heterocyclic cores in good to excellent yields.
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Affiliation(s)
- Ilya V Seregin
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, USA
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Karimipour GR, Nasr-Esfahani M, Valipour G. Catalytic Oxidation of 1,4-dihydropyridins by Tetrabutylammonium Periodate in the presence of Manganese Amino Acid Schiff Base. JOURNAL OF CHEMICAL RESEARCH 2007. [DOI: 10.3184/030823407x227615] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The amino acid Schiff base manganese complex (Tryp–Mn); 1, was prepared with L-tryptophan, salicylaldehyde and Mn(OAc)2.4H2O in methanol. In the presence of 1, 1,4-dihydropyridines (1,4-DHPs) were oxidised by n-Bu4NIO4 to the corresponding pyridine derivatives in high yields. Imidazole was used as an additive to improve the catalytic oxidation.
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Affiliation(s)
| | | | - Ghasem Valipour
- Department of Chemistry, Yasouj University, Yasouj 75914-353, Iran
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35
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Smith CR, Bunnelle EM, Rhodes AJ, Sarpong R. Pt-catalyzed cyclization/1,2-migration for the synthesis of indolizines, pyrrolones, and indolizinones. Org Lett 2007; 9:1169-71. [PMID: 17309277 PMCID: PMC3384527 DOI: 10.1021/ol0701971] [Citation(s) in RCA: 142] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Indolizine, pyrrolone, and indolizinone heterocycles are easily accessed via the Pt(II)-catalyzed cycloisomerization or a tandem cyclization/1,2-migration of pyridine propargylic alcohols and derivatives. This method provides an efficient synthesis of highly functionalized heterocycles from readily available substrates. [reaction: see text]
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Affiliation(s)
- Cameron R. Smith
- Department of Chemistry, University of California, Berkeley, California 94720
| | - Eric M. Bunnelle
- Department of Chemistry, University of California, Berkeley, California 94720
| | - Allison J. Rhodes
- Department of Chemistry, University of California, Berkeley, California 94720
| | - Richmond Sarpong
- Department of Chemistry, University of California, Berkeley, California 94720
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