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Kuprianowicz M, Kaźmierczak M, Muszyńska E, Bzdęga K, Wójtowicz-Rajchel H. 1,3-Dipolar cycloaddition in the synthesis of trifluoromethyl-substituted isoxazolidinyl derivatives of nucleobases. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.05.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wang ML, Hsieh YM. Kinetic study of dichlorocyclopropanation under phase-transfer catalysis and assisted by microwave irradiation. J Taiwan Inst Chem Eng 2014. [DOI: 10.1016/j.jtice.2014.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Cordaro M, Risitano F, Scala A, Rescifina A, Chiacchio U, Grassi G. Self-catalyzed Mannich-type reaction of enolizable cyclic 1,3-dicarbonyls to acyclic nitrones: an entry to functionalized β-enamino diones. J Org Chem 2013; 78:3972-9. [PMID: 23506161 DOI: 10.1021/jo400331b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A new method for the preparation of highly functionalized β-enamino diones has been developed. The protocol involves an initial self-catalyzed Mannich-type reaction of enolizable cyclic 1,3-dicarbonyls to nitrones, followed by a spontaneous intramolecular reorganization of the resulting nonisolated hydroxylamine to enamino derivatives. These compounds retain the features of unnatural α-amino acids. The ease of preparation makes them attractive intermediates for the synthesis of peptidomimetics, polyheterocycles, and other multifunctional compounds. All experimental results have been efficiently rationalized by in silico studies at the M06-2X level of theory, and a valid mechanistic pathway has been proposed.
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Affiliation(s)
- Massimiliano Cordaro
- Dipartimento di Scienze Chimiche, Università di Messina, V. le F. Stagno d'Alcontres 31, Messina 98166, Italy
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Candeias NR, Branco LC, Gois PMP, Afonso CAM, Trindade AF. More Sustainable Approaches for the Synthesis of N-Based Heterocycles. Chem Rev 2009; 109:2703-802. [DOI: 10.1021/cr800462w] [Citation(s) in RCA: 292] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nuno R. Candeias
- Centro de Química-Física Molecular (CQFM) and Institute of Nanosciences and Nanotechnology (IN), Departamento de Engenharia Química e Biológica, Instituto Superior Técnico, 1049-001 Lisboa, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal, and iMed.UL, Faculdade de Farmácia da Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Luís C. Branco
- Centro de Química-Física Molecular (CQFM) and Institute of Nanosciences and Nanotechnology (IN), Departamento de Engenharia Química e Biológica, Instituto Superior Técnico, 1049-001 Lisboa, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal, and iMed.UL, Faculdade de Farmácia da Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Pedro M. P. Gois
- Centro de Química-Física Molecular (CQFM) and Institute of Nanosciences and Nanotechnology (IN), Departamento de Engenharia Química e Biológica, Instituto Superior Técnico, 1049-001 Lisboa, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal, and iMed.UL, Faculdade de Farmácia da Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Carlos A. M. Afonso
- Centro de Química-Física Molecular (CQFM) and Institute of Nanosciences and Nanotechnology (IN), Departamento de Engenharia Química e Biológica, Instituto Superior Técnico, 1049-001 Lisboa, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal, and iMed.UL, Faculdade de Farmácia da Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Alexandre F. Trindade
- Centro de Química-Física Molecular (CQFM) and Institute of Nanosciences and Nanotechnology (IN), Departamento de Engenharia Química e Biológica, Instituto Superior Técnico, 1049-001 Lisboa, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal, and iMed.UL, Faculdade de Farmácia da Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
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Yadav GD, Motirale BG. Microwave-Irradiated Synthesis of Nitrophen Using PEG 400 as Phase Transfer Catalyst and Solvent. Org Process Res Dev 2009. [DOI: 10.1021/op800206c] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ganapati D. Yadav
- Department of Chemical Engineering, University Institute of Chemical Technology (UICT), University of Mumbai, Matunga, Mumbai - 400 019, India
| | - Bhavana G. Motirale
- Department of Chemical Engineering, University Institute of Chemical Technology (UICT), University of Mumbai, Matunga, Mumbai - 400 019, India
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Li D, Song L, Song S, Zhu S. Regioselective synthesis of 6-trifluoromethyl-1,4,5,6-tetrahydropyrazolo[3,4-b]pyran derivatives. J Fluor Chem 2007. [DOI: 10.1016/j.jfluchem.2007.04.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Broggini G, Colombo F, De Marchi I, Galli S, Martinelli M, Zecchi G. Synthesis of enantiopure 4-amino-3-hydroxymethyl-tetrahydroquinolines via an intramolecular nitrone cycloaddition. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Arrieta A, Ramón Carrillo J, Cossío FP, Díaz-Ortiz A, JoséGómez-Escalonilla M, de la Hoz A, Langa F, Moreno A. Efficient tautomerization hydrazone-azomethine imine under microwave irradiation. Synthesis of [4,3′] and [5,3′]bipyrazoles. Tetrahedron 1998. [DOI: 10.1016/s0040-4020(98)00798-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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