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Bekfelavi EY, Kuş NŞ. The synthesis of monocyclic and bicyclic molecules and their antioxidant properties. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.04.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Mauger A, Farjon J, Nun P, Coeffard V. One-Pot Synthesis of Functionalized Fused Furans via a BODIPY-Catalyzed Domino Photooxygenation. Chemistry 2018; 24:4790-4793. [DOI: 10.1002/chem.201706087] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Indexed: 12/27/2022]
Affiliation(s)
- Audrey Mauger
- Université de Nantes; CNRS; Chimie Et Interdisciplinarité: Synthèse, Analyse et Modélisation (CEISAM); UMR CNRS 6230; Faculté des Sciences et des Techniques; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Jonathan Farjon
- Université de Nantes; CNRS; Chimie Et Interdisciplinarité: Synthèse, Analyse et Modélisation (CEISAM); UMR CNRS 6230; Faculté des Sciences et des Techniques; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Pierrick Nun
- Université de Nantes; CNRS; Chimie Et Interdisciplinarité: Synthèse, Analyse et Modélisation (CEISAM); UMR CNRS 6230; Faculté des Sciences et des Techniques; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Vincent Coeffard
- Université de Nantes; CNRS; Chimie Et Interdisciplinarité: Synthèse, Analyse et Modélisation (CEISAM); UMR CNRS 6230; Faculté des Sciences et des Techniques; 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
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Affiliation(s)
- Ashwini A. Ghogare
- Department
of Chemistry, Brooklyn College, 2900 Bedford Avenue, Brooklyn, New York 11210, United States
- Ph.D.
Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
| | - Alexander Greer
- Department
of Chemistry, Brooklyn College, 2900 Bedford Avenue, Brooklyn, New York 11210, United States
- Ph.D.
Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
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5
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Griesbeck AG, Kleczka M, de Kiff A, Vollmer M, Eske A, Sillner S. Singlet oxygen and natural substrates: functional polyunsaturated models for the photooxidative degradation of carotenoids. PURE APPL CHEM 2015. [DOI: 10.1515/pac-2015-0209] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe primary chemical reactions of singlet molecular oxygen with polyunsaturated carotenoids are the focus of this research report. Model compounds that exhibit electronic properties and substituent pattern similar to natural carotenes, xanthophylls or apocarotenoids, respectively, were investigated with regard to photooxygenation reactivity. For dienes and trienes as substrates, high tandem reactivity was observed and hydroperoxy-endoperoxides were isolated as the secondary products of singlet oxygen reaction. The electronic gem-effect on the regioselectivity of the ene reaction is conserved also in vinylogous positions and thus appears to originate from a radical-stabilizing effect. In an attempt to combine different peroxide groups derived from natural products as a tool for new pharmaceutically active products, a dyade synthesis of an artemisinine-safranol with subsequent singlet oxygen addition was realized.
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Affiliation(s)
- Axel G. Griesbeck
- 1Department of Chemistry, University of Cologne, Greinstr. 4, 50939 Cologne, Germany
| | - Margarethe Kleczka
- 1Department of Chemistry, University of Cologne, Greinstr. 4, 50939 Cologne, Germany
| | - Alan de Kiff
- 1Department of Chemistry, University of Cologne, Greinstr. 4, 50939 Cologne, Germany
| | - Moritz Vollmer
- 1Department of Chemistry, University of Cologne, Greinstr. 4, 50939 Cologne, Germany
| | - Angelika Eske
- 1Department of Chemistry, University of Cologne, Greinstr. 4, 50939 Cologne, Germany
| | - Sarah Sillner
- 1Department of Chemistry, University of Cologne, Greinstr. 4, 50939 Cologne, Germany
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Silva S, Rodrigues P, Bento I, Maycock CD. The Aza-Wharton reaction: syntheses of cyclic allylic amines and vicinal hydroxyamines from the respective acylaziridines. J Org Chem 2015; 80:3067-74. [PMID: 25714507 DOI: 10.1021/jo5029387] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The Wharton reaction, initially described for acyl epoxides, has been studied using the structurally similar aziridines. By this reaction, a range of cyclic allylic amines and vicinal amino alcohols have been prepared stereoselectively and, in some cases, enantiomerically pure.
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Affiliation(s)
- Saúl Silva
- †Instituto de Tecnologia Química e Biológica: António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Paula Rodrigues
- †Instituto de Tecnologia Química e Biológica: António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Isabel Bento
- †Instituto de Tecnologia Química e Biológica: António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Christopher D Maycock
- †Instituto de Tecnologia Química e Biológica: António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal.,‡Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
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Griesbeck AG, de Kiff A, Kleczka M. Tetraphenylporphyrin-Catalyzed Tandem Photooxygenation of Polyenes and 1,4-Dienes: Multiple and Diverse Oxyfunctionalizations. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400565] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Della Sala G, Lattanzi A. Asymmetric Catalytic Routes to Dialkyl Peroxides and Oxaziridines. ACS Catal 2014. [DOI: 10.1021/cs500132m] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Giorgio Della Sala
- Dipartimento di Chimica e
Biologia, Università di Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy
| | - Alessandra Lattanzi
- Dipartimento di Chimica e
Biologia, Università di Salerno, Via Giovanni Paolo II, 84084 Fisciano, Italy
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9
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Griffen JA, Kenwright SJ, Abou-Shehada S, Wharry S, Moody TS, Lewis SE. Benzoate dioxygenase fromRalstonia eutrophaB9 – unusual regiochemistry of dihydroxylation permits rapid access to novel chirons. Org Chem Front 2014. [DOI: 10.1039/c3qo00057e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxidation of benzoic acid by a microorganism expressing benzoate dioxygenase leads to the formation of an unusualipso,orthoarenecis-diol in sufficient quantities to be useful for synthesis.
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Affiliation(s)
- Julia A. Griffen
- Centre for Sustainable Chemical Technologies
- University of Bath
- Claverton Down, UK
| | - Sarah J. Kenwright
- Centre for Sustainable Chemical Technologies
- University of Bath
- Claverton Down, UK
| | - Sarah Abou-Shehada
- Centre for Sustainable Chemical Technologies
- University of Bath
- Claverton Down, UK
| | - Scott Wharry
- Department of Biocatalysis and Isotope Chemistry
- Almac Group Ltd
- Craigavon, UK
| | - Thomas S. Moody
- Department of Biocatalysis and Isotope Chemistry
- Almac Group Ltd
- Craigavon, UK
| | - Simon E. Lewis
- Centre for Sustainable Chemical Technologies
- University of Bath
- Claverton Down, UK
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Griesbeck AG, Kiff AD. A New Directing Mode for Singlet Oxygen Ene Reactions: The Vinylogous Gem Effect Enables a 1O2 Domino Ene/[4 + 2] Process. Org Lett 2013; 15:2073-5. [DOI: 10.1021/ol4009602] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Alan de Kiff
- Department of Chemistry, University of Cologne, 50939 Köln, Germany
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11
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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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12
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Regioselectivity in the ring opening of epoxides for the synthesis of aminocyclitols from D-(-)-quinic acid. Molecules 2012; 17:4498-507. [PMID: 22508330 PMCID: PMC6268476 DOI: 10.3390/molecules17044498] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Revised: 04/09/2012] [Accepted: 04/10/2012] [Indexed: 11/21/2022] Open
Abstract
Efficient syntheses of four aminocyclitols are reported. Each synthesis is accomplished in eight steps starting from D-(−)-quinic acid. The key step involves a highly regioselective ring opening of epoxides by sodium azide.
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Kilbas B, Balci M. Palladium-catalyzed formation of oxazolidinones from biscarbamates: a mechanistic study. Beilstein J Org Chem 2011; 7:246-53. [PMID: 21448246 PMCID: PMC3063050 DOI: 10.3762/bjoc.7.33] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2010] [Accepted: 02/02/2011] [Indexed: 11/23/2022] Open
Abstract
Oxazolidinones can be synthesized starting from cyclic biscarbamates via a palladium-catalyzed reaction. To test the proposed mechanism of this reaction, first, bicyclonorcarene endoperoxides derived from cyano and carbomethoxy cycloheptatrienes were synthesized and converted into the corresponding diols. The reaction of diols with toluenesulfonyl isocyanate followed by a palladium catalyzed reaction furnished oxazolidinone derivatives in similar yields. It was shown that, if one face of the double bond is blocked by substituents such as H or CN, the reaction also takes place. On the basis of these results, it was assumed that an antiperiplanar orientation of the metal and nucleophile is not necessary to form oxazolidinones. The metal is probably bonded to the allylic system from the same face as the nucleophile.
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Affiliation(s)
- Benan Kilbas
- Department of Chemistry, Middle East Technical University, 06531 Ankara, Turkey
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Gupta P, Pal APJ, Reddy YS, Vankar YD. Synthesis of Aminocyclitols and Trihydroxylated Indolizidinone from a D-Mannitol-Derived Common Building Block. European J Org Chem 2010. [DOI: 10.1002/ejoc.201001171] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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