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Hassan AA, Mohamed NK, El-Haleem LEA, Bräse S, Nieger M. Facile Synthesis of Naphtho[2,3- d]thiazoles, Naphtho[2,3- e][1,3,4]thiadiazines and Bis(naphtho[2,3- d]thiazolyl)copper(II) Derivatives from Heteroylthiosemicarbazides. CHINESE J CHEM 2016. [DOI: 10.1002/cjoc.201600195] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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2
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Xing MM, Xu H, Hou LF, Gao JR, Li YJ. AlCl3-catalyzed [3 + 3] cycloaddition of chalcones and β-enamine ketones (esters): a highly efficient access to multisubstituted cyclohexa-1,3-dienamines. RSC Adv 2016. [DOI: 10.1039/c5ra25691g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
An efficient protocol was successfully achieved to give 1,3-cyclohexadiene derivatives in good to excellent yields from chalcones and β-enamine ketones (esters) promoted by AlCl3.
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Affiliation(s)
- Meng-Ming Xing
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou
- P. R. China
| | - Hui Xu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou
- P. R. China
| | - Li-Fen Hou
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- PR China
| | - Jian-Rong Gao
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou
- P. R. China
| | - Yu-Jin Li
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou
- P. R. China
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Hussaini SR, Chamala RR, Wang Z. The Eschenmoser sulfide contraction method and its application in the synthesis of natural products. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.06.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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4
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Yıldırım M, Çelikel D, Evis N, Knight DW, Kariuki BM. Base-promoted new C–C bond formation: an expedient route for the preparation of thiazolo- and imidazolo-pyridinones via Michael addition. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.070] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Noland WE, Lanzatella NP, Dickson RR, Messner ME, Nguyen HH. Access to Indoles via Diels-Alder Reactions of 5-Methylthio-2-vinylpyrroles with Maleimides. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1571] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wayland E. Noland
- Department of Chemistry; University of Minnesota; 207 Pleasant Street SE; Minneapolis; Minnesota; 55455; USA
| | - Nicholas P. Lanzatella
- Department of Chemistry; University of Minnesota; 207 Pleasant Street SE; Minneapolis; Minnesota; 55455; USA
| | - Rozalin R. Dickson
- Department of Chemistry; University of Minnesota; 207 Pleasant Street SE; Minneapolis; Minnesota; 55455; USA
| | - Mary E. Messner
- Department of Chemistry; University of Minnesota; 207 Pleasant Street SE; Minneapolis; Minnesota; 55455; USA
| | - Huy H. Nguyen
- Department of Chemistry; University of Minnesota; 207 Pleasant Street SE; Minneapolis; Minnesota; 55455; USA
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Ponpandian T, Muthusubramanian S. Sequential deprotection–cyclisation reaction: stereoselective synthesis of azabicyclic β-enamino ester derivatives and (−) indolizidine 209D. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.11.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Neto BAD, Lapis AAM, da Silva Júnior EN, Dupont J. 2,1,3-Benzothiadiazole and Derivatives: Synthesis, Properties, Reactions, and Applications in Light Technology of Small Molecules. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201161] [Citation(s) in RCA: 212] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Oliveira FFD, dos Santos MR, Lalli PM, Schmidt EM, Bakuzis P, Lapis AAM, Monteiro AL, Eberlin MN, Neto BAD. Charge-Tagged Acetate Ligands As Mass Spectrometry Probes for Metal Complexes Investigations: Applications in Suzuki and Heck Phosphine-Free Reactions. J Org Chem 2011; 76:10140-7. [DOI: 10.1021/jo201990n] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Felipe F. D. Oliveira
- Laboratory of Medicinal and
Technological Chemistry, Chemistry Institute, University of Brasília (UnB), Campus Universitário
Darcy Ribeiro, CEP 70904-970, P.O. Box 4478, Brasília-DF, Brazil
| | - Marcelo R. dos Santos
- Laboratory of Medicinal and
Technological Chemistry, Chemistry Institute, University of Brasília (UnB), Campus Universitário
Darcy Ribeiro, CEP 70904-970, P.O. Box 4478, Brasília-DF, Brazil
| | - Priscila M. Lalli
- ThoMSon Mass Spectrometry Laboratory, University of Campinas-UNICAMP, Campinas, SP, Brazil
| | - Eduardo M. Schmidt
- ThoMSon Mass Spectrometry Laboratory, University of Campinas-UNICAMP, Campinas, SP, Brazil
| | - Peter Bakuzis
- Laboratory of Medicinal and
Technological Chemistry, Chemistry Institute, University of Brasília (UnB), Campus Universitário
Darcy Ribeiro, CEP 70904-970, P.O. Box 4478, Brasília-DF, Brazil
| | | | - Adriano L. Monteiro
- Laboratory of Molecular Catalysis, Institute of Chemistry, UFRGS, 91501-970, Porto Alegre,
RS, Brazil
| | - Marcos N. Eberlin
- ThoMSon Mass Spectrometry Laboratory, University of Campinas-UNICAMP, Campinas, SP, Brazil
| | - Brenno A. D. Neto
- Laboratory of Medicinal and
Technological Chemistry, Chemistry Institute, University of Brasília (UnB), Campus Universitário
Darcy Ribeiro, CEP 70904-970, P.O. Box 4478, Brasília-DF, Brazil
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de Oliveira VM, Silva de Jesus R, Gomes AF, Gozzo FC, Umpierre AP, Suarez PAZ, Rubim JC, Neto BAD. Catalytic Aminolysis (Amide Formation) from Esters and Carboxylic Acids: Mechanism, Enhanced Ionic Liquid Effect, and its Origin. ChemCatChem 2011. [DOI: 10.1002/cctc.201100221] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Neto BA, Lapis AA, Bernd AB, Russowsky D. Studies on the Eschenmoser coupling reaction and insights on its mechanism. Application in the synthesis of Norallosedamine and other alkaloids. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.01.081] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Czekster CM, Lapis AA, Souza GH, Eberlin MN, Basso LA, Santos DS, Dupont J, Neto BA. The catalytic mechanism of indole-3-glycerol phosphate synthase (IGPS) investigated by electrospray ionization (tandem) mass spectrometry. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.07.149] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Pronounced ionic liquid effect in the synthesis of biologically active isatin-3-oxime derivatives under acid catalysis. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.07.067] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Hamama WS, Ismail MA, Shaaban S, Zoorob HH. Progress in the chemistry of 4- thiazolidinones. J Heterocycl Chem 2008. [DOI: 10.1002/jhet.5570450401] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Michael JP, Accone C, de Koning CB, van der Westhuyzen CW. Analogues of amphibian alkaloids: total synthesis of (5R,8S,8aS)-(-)-8-methyl-5-pentyloctahydroindolizine (8-epi-indolizidine 209B) and [(1S,4R,9aS)-(-)-4-pentyloctahydro-2H-quinolizin-1-yl]methanol. Beilstein J Org Chem 2008; 4:5. [PMID: 18205934 PMCID: PMC2241605 DOI: 10.1186/1860-5397-4-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2007] [Accepted: 01/18/2008] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Prior work from these laboratories has centred on the development of enaminones as versatile intermediates for the synthesis of alkaloids and other nitrogen-containing heterocycles. In this paper we describe the enantioselective synthesis of indolizidine and quinolizidine analogues of bicyclic amphibian alkaloids via pyrrolidinylidene- and piperidinylidene-containing enaminones. RESULTS Our previously reported synthesis of racemic 8-epi-indolizidine 209B has been extended to the laevorotatory enantiomer, (-)-9. Attempts to adapt the synthetic route in order to obtain quinolizidine analogues revealed that a key piperidinylidene-containing enaminone intermediate (+)-28 was less tractable than its pyrrolidinylidene counterpart, thereby necessitating modifications that included timing changes and additional protection-deprotection steps. A successful synthesis of [(1S,4R,9aS)-4-pentyloctahydro-2H-quinolizin-1-yl]methanol (-)-41 from the chiral amine tert-butyl (3R)-3-{benzyl [(1R)-1-phenylethyl]amino}octanoate (+)-14 was achieved in 14 steps and an overall yield of 20.4%. CONCLUSION The methodology reported in this article was successfully applied to the enantioselective synthesis of the title compounds. It paves the way for the total synthesis of a range of cis-5,8-disubstituted indolizidines and cis-1,4-disubstituted quinolizidines, as well as the naturally occurring trans-disubstituted alkaloids.
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Affiliation(s)
- Joseph P Michael
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, PO Wits 2050, South Africa.
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Gerasyuto AI, Hsung RP. An Intramolecular aza-[3 + 3] Annulation Approach to Azaphenalene Alkaloids. Total Synthesis of Myrrhine. J Org Chem 2007; 72:2476-84. [PMID: 17338572 DOI: 10.1021/jo062533h] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A detailed account on the stereoselective total syntheses of azaphenalene alkaloids via an intramolecular aza-[3+3] annulation strategy is described here. All five members of the Coccinellidae family of defensive alkaloids were prepared from the same common intermediate, which was derived from a stereoselective aza-[3+3] annulation reaction.
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Affiliation(s)
- Aleksey I Gerasyuto
- Division of Pharmaceutical Sciences and Department of Chemistry, University of Wisconsin, Rennebohm Hall, 777 Highland Avenue, Madison, Wisconsin 53705, USA
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Santos LS, DaSilveira Neto BA, Consorti CS, Pavam CH, Almeida WP, Coelho F, Dupont J, Eberlin MN. The role of ionic liquids in co-catalysis of Baylis-Hillman reaction: interception of supramolecular species via electrospray ionization mass spectrometry. J PHYS ORG CHEM 2007. [DOI: 10.1002/poc.1066] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Mancilha FS, DaSilveira Neto BA, Lopes AS, Moreira PF, Quina FH, Gonçalves RS, Dupont J. Are Molecular 5,8-π-Extended Quinoxaline Derivatives Good Chromophores for Photoluminescence Applications? European J Org Chem 2006. [DOI: 10.1002/ejoc.200600376] [Citation(s) in RCA: 100] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Calvet-Vitale S, Vanucci-Bacqué C, Fargeau-Bellassoued MC, Lhommet G. Stereoselective Synthesis of New Chiral N-Tertiary Tetrasubstituted β-Enamino Ester Piperidines through an Ammonia-Catalyzed Process. J Org Chem 2006; 71:2071-7. [PMID: 16496995 DOI: 10.1021/jo052490p] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report here two approaches for the preparation of new N-substituted beta-enamino ester piperidines featuring an exocyclic tetrasubstituted double bond, based either on the direct alkylation of piperidine beta-enamino esters bearing an exocyclic trisubstituted double bond or on the intramolecular cyclization of linear amino beta-keto esters. The target compounds were obtained as unusual (Z)-stereoisomers in high yields. The key role of ammonia as reagent, acting both as a nucleophile and a base, was underlined. The diastereoselective formation of the products was rationalized on the basis of an ammonia addition-syn elimination catalytic process.
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Affiliation(s)
- Sandrine Calvet-Vitale
- Université Pierre et Marie Curie, Institut de Chimie Moléculaire FR 2769, Laboratoire de Chimie Organique, UMR 7611, Equipe de Chimie des Hétérocycles, 4 Place Jussieu, 75252 Paris Cedex 05, France
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Reductive sulfur extrusion reaction of 2,1,3-benzothiadiazole compounds: a new methodology using NaBH4/CoCl2·6H2O(cat) as the reducing system. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.08.017] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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