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Ying Z, Cen J, Luo F, Wu Y, Liu S, Chen W, Shao J, Yu Y. Substrate-Tuned Domino Annulation for Selective Synthesis of Poly-substituted Benzo[ f]imidazo[2,1- a][2,7]naphthyridines and 3-Azaheterocyclic Substituted 2-Arylquinolines. J Org Chem 2021; 86:4747-4755. [PMID: 33629853 DOI: 10.1021/acs.joc.1c00112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A domino annulation/oxidation of heterocyclic ketene aminals (HKAs) and 2-aminochalcones has been developed for the selective synthesis of poly-substituted benzo[f]imidazo[2,1-a][2,7]naphthyridines and 3-azaheterocyclic substituted 2-arylquinolines. These reactions proceed well under mild conditions without any additives. Plausible mechanisms for such a polycyclic ring system assembly were also proposed. Moreover, benzo[f]imidazo[2,1-a][2,7]naphthyridine 3g displayed a fluorescence effect, demonstrating the potential applications in organic optical materials.
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Affiliation(s)
- Zhimin Ying
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, People's Republic of China, 310058
| | - Jie Cen
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, People's Republic of China, 310058
| | - Feng Luo
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, People's Republic of China, 310058
| | - You Wu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, People's Republic of China, 310058
| | - Shuangrong Liu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, People's Republic of China, 310058
| | - Wenteng Chen
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, People's Republic of China, 310058
| | - Jiaan Shao
- School of Medicine, Zhejiang University City College, Hangzhou, People's Republic of China, 310015
| | - Yongping Yu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, People's Republic of China, 310058
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Dhoro F, Parkin-Gibbs J, McIldowie M, Skelton BW, Piggott MJ. Confirmation of the Revised Structure of Samoquasine A and a Proposed Structural Revision of Cherimoline. JOURNAL OF NATURAL PRODUCTS 2018; 81:1658-1665. [PMID: 30020782 DOI: 10.1021/acs.jnatprod.8b00319] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The identity of the natural product samoquasine A has remained obscure since its isolation from custard apple seeds in 2000. One of the proposed structures, benzo[ f]phthalazin-4(3 H)-one, was prepared in two steps by regioselective ortho-lithiation/formylation of N, N-diisopropyl-2-naphthylamide, followed by cyclization with hydrazine, but was shown to be different from the natural product. Perlolidine, another candidate structure, was synthesized by a novel route involving a β-selective Heck reaction of butyl vinyl ether. Both perlolidine and samoquasine A are converted by trimethylsilyldiazomethane into the same N-methyl derivative. In addition, the 13C NMR spectra of perlolidine and another structurally mis-assigned natural product, cherimoline, are almost identical. Thus, both samoquasine A and cherimoline are actually perlolidine.
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Affiliation(s)
- Francis Dhoro
- Chemistry, School of Molecular Sciences , The University of Western Australia , Perth , WA 6009 , Australia
| | - Jesse Parkin-Gibbs
- Chemistry, School of Molecular Sciences , The University of Western Australia , Perth , WA 6009 , Australia
| | - Matthew McIldowie
- Chemistry, School of Molecular Sciences , The University of Western Australia , Perth , WA 6009 , Australia
| | - Brian W Skelton
- Chemistry, School of Molecular Sciences , The University of Western Australia , Perth , WA 6009 , Australia
| | - Matthew J Piggott
- Chemistry, School of Molecular Sciences , The University of Western Australia , Perth , WA 6009 , Australia
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Flöistrup E, Goede P, Strömberg R, Malm J. Synthesis of estradiol backbone mimics via the Stille reaction using copper(II) oxide as co-reagent. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2010.10.144] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Litvinov VP, Roman SV, Dyachenko VD. Naphthyridines. Structure, physicochemical properties and general methods of synthesis. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc2000v069n03abeh000553] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Oda M, Thanh NC, Ikai M, Fujikawa H, Nakajima K, Kuroda S. Synthesis and properties of N,N,N′,N′-tetrasubstituted 1,3-bis(5-aminothien-2-yl)azulenes and their application as a hole-injecting material in organic light-emitting devices. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.08.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Affiliation(s)
- Luigi A Agrofoglio
- Institut de Chimie Organique et Analytique, UMR CNRS 6005, Université d'Orléans, BP 6759-Rue de Chartres, 45067 Orléans, France
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Godard A, Rocca P, Guillier F, Duvey G, Nivoliers F, Marsais F, Quéguiner G. Ortho-directed metallation of π-deficient heterocycles in connection with palladium-catalyzed biaryl cross-coupling Synthesis of marine alkaloids of the pyridoacridine series. CAN J CHEM 2001. [DOI: 10.1139/v01-147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Connection between ortho-directed metallation of π-deficient heterocycles and Suzuki cross-coupling reactions provides a very efficient and fruitful strategy to polycyclic molecules of biological interest. The methodology is used to synthesize alkaloids or precursors and analogues of natural compounds of the pyrido[2,3,4-k,l]acridine series.Key words: marine alkaloids, pyrido[2,3,4-k,l]acridines, metallation, cross-coupling.
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Aakermann T, Gronowitz S. SYNTHESIS OF TRICYCLIC SYSTEMS OF BIOLOGICAL INTEREST. HETEROCYCL COMMUN 1997. [DOI: 10.1515/hc.1997.3.1.7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Molina P, Pastor A, Vilaplana MJ. Unusual Reactivity of (Vinylimino)phosphoranes and Their Utility in the Preparation of Pyridine and Dihydropyridine Derivatives. J Org Chem 1996; 61:8094-8098. [PMID: 11667795 DOI: 10.1021/jo960940v] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
New reactions of (vinylimino)phosphoranes with aldehydes involving an initial nucleophilic attack of the beta-carbon atom of the vinyl side chain on the carbonyl carbon atom are reported. Iminophosphorane 4 derived from ethyl beta-azidoacrylate reacts with substituted cinnamyl aldehydes to give a mixture of 2-arylpyridine and 4-styryldihydropyridine derivatives, whereas the reaction with substituted benzaldehydes provides 4-aryldihydropyridine derivatives. However, the iminophosphorane 16 derived from the diethyl azidofumarate reacts with cinnamyl aldehydes through the expected aza-Wittig fashion to give 4-arylpyridine derivatives after dehydrogenation of the resulting dihydropyridine.
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Affiliation(s)
- Pedro Molina
- Departamento de Química Orgánica, Facultad de Química, Universidad de Murcia Campus de Espinardo, E-30071 Murcia, Spain
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Ozola V, Persson T, Gronowitz S, Hörnfeldt AB. On the syntheses of 8-Heteroaryl-substituted 9-(β-D-Ribofuranosyl)-2,6-diaminopurines through Pd-catalyzed coupling in the presence of cupric oxide. J Heterocycl Chem 1995. [DOI: 10.1002/jhet.5570320331] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Cochennec C, Rocca P, Marsais F, Godard A, Quéguiner G. Nucleophilic addition of lithio derivatives to 1-substituted benzo[c][2,7]naphthyridines (2,9-diazaphenanthrenes). ACTA ACUST UNITED AC 1995. [DOI: 10.1039/p19950000979] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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An original one-pot synthesis of 5-(4-pyridyl)-benzo[c]-2,7-naphthyridine as key intermediate in the synthesis of amphimedine by metalation connected with cross-coupling reaction. Tetrahedron Lett 1994. [DOI: 10.1016/s0040-4039(00)78253-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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