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Carrau G, Bellomo AI, Suescun L, Gonzalez D. Chemoenzymatic Synthesis of Hygromycin Aminocyclitol Moiety and its C2 Epimer. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801424] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Gonzalo Carrau
- Departamento de Química Orgánica Facultad de Química Universidad de la República (UdelaR) Montevideo Uruguay
| | - Ana Inés Bellomo
- Centro de investigaciones en Bionanociencias (CIBION) Facultad de Química Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Argentina
| | - Leopoldo Suescun
- Laboratorio de Cristalografía estado sólido y materiales/Cátedra de Física/DETEMA/Facultad de Química Universidad de la República (UdelaR) Montevideo Uruguay
| | - David Gonzalez
- Departamento de Química Orgánica Facultad de Química Universidad de la República (UdelaR) Montevideo Uruguay
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O'Neill S, Rodriguez J, Walczak MA. Direct Dehydrative Glycosylation of C1-Alcohols. Chem Asian J 2018; 13:2978-2990. [PMID: 30019854 PMCID: PMC7326538 DOI: 10.1002/asia.201800971] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Indexed: 12/15/2022]
Abstract
Due to the central role played by carbohydrates in a multitude of biological processes, there has been a sustained interest in developing effective glycosylation methods to enable more thorough investigation of their essential functions. Among the myriad technologies available for stereoselective glycoside bond formation, dehydrative glycosylation possesses a distinct advantage given the unique properties of C1-alcohols such as straightforward preparation, stability, and a general reactivity compatible with a diverse set of reaction conditions. In this Focus Review, a survey of direct dehydrative glycosylations of C1-alcohols is provided with an emphasis on recent achievements, pervading limitations, mechanistic insights, and applications in total synthesis.
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Affiliation(s)
- Sloane O'Neill
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO, 80309, USA
| | - Jacob Rodriguez
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO, 80309, USA
| | - Maciej A Walczak
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO, 80309, USA
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Hain J, Rollin P, Klaffke W, Lindhorst TK. Anomeric modification of carbohydrates using the Mitsunobu reaction. Beilstein J Org Chem 2018; 14:1619-1636. [PMID: 30013688 PMCID: PMC6036978 DOI: 10.3762/bjoc.14.138] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 06/06/2018] [Indexed: 11/23/2022] Open
Abstract
The Mitsunobu reaction basically consists in the conversion of an alcohol into an ester under inversion of configuration, employing a carboxylic acid and a pair of two auxiliary reagents, mostly triphenylphosphine and a dialkyl azodicarboxylate. This reaction has been frequently used in carbohydrate chemistry for the modification of sugar hydroxy groups. Modification at the anomeric position, leading mainly to anomeric esters or glycosides, is of particular importance in the glycosciences. Therefore, this review focuses on the use of the Mitsunobu reaction for modifications of sugar hemiacetals. Strikingly, unprotected sugars can often be converted regioselectively at the anomeric center, whereas in other cases, the other hydroxy groups in reducing sugars have to be protected to achieve good results in the Mitsunobu procedure. We have reviewed on the one hand the literature on anomeric esterification, including glycosyl phosphates, and on the other hand glycoside synthesis, including S- and N-glycosides. The mechanistic details of the Mitsunobu reaction are discussed as well as this is important to explain and predict the stereoselectivity of anomeric modifications under Mitsunobu conditions. Though the Mitsunobu reaction is often not the first choice for the anomeric modification of carbohydrates, this review shows the high value of the reaction in many different circumstances.
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Affiliation(s)
- Julia Hain
- Christiana Albertina University of Kiel, Otto Diels Institute of Organic Chemistry, Otto-Hahn-Platz 3–4, D-24118 Kiel, Germany, Fax: +49 431 8807410
| | - Patrick Rollin
- Université d’Orléans et CNRS, ICOA, UMR 7311, BP 6759, 45067 Orléans, France, Fax: +33 238 417281
| | - Werner Klaffke
- Haus der Technik e.V., Hollestr. 1, 45127 Essen, Germany, Fax: +49 201 1803269
| | - Thisbe K Lindhorst
- Christiana Albertina University of Kiel, Otto Diels Institute of Organic Chemistry, Otto-Hahn-Platz 3–4, D-24118 Kiel, Germany, Fax: +49 431 8807410
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Ren X, Guo Q, Chen J, Xie H, Xu Q, Lu Z. Visible-Light Promoted Distereodivergent Intramolecular Oxyamidation of Alkenes. Chemistry 2016; 22:18695-18699. [PMID: 27770547 DOI: 10.1002/chem.201603977] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Indexed: 12/23/2022]
Abstract
The visible-light-promoted diastereodivergent intramolecular oxyamination of alkenes is described to construct oxazolindinones, pyrrolidinones and imidazolidones via mild generation of primary amidyl radicals from functionalized hydroxylamines. A unique phenomenon of highly diastereoselective ring-opening of aziridines controlled by electron sacrifices was observed. Highly diastereoselective amino alcohols derivatives were obtained efficiently through this protocol in gram scales. The mechanistic studies suggested the isolatable anti-aziridine intermediates were generated quickly from primary amidyl radicals and the diastereoselectivities were controlled by pKa values of the electron sacrifices.
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Affiliation(s)
- Xiang Ren
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310058, P. R. China
| | - Qihang Guo
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310058, P. R. China
| | - Jianhui Chen
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310058, P. R. China.,College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, P. R. China
| | - Hujun Xie
- Department of Applied Chemistry, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310018, P. R. China
| | - Qing Xu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, P. R. China
| | - Zhan Lu
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310058, P. R. China
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Hain J, Chandrasekaran V, Lindhorst TK. Joining Hydroxyazobenzene and Mannose under Mitsunobu Conditions. Isr J Chem 2015. [DOI: 10.1002/ijch.201400211] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Aydin G, Ally K, Aktaş F, Şahin E, Baran A, Balci M. Synthesis and α-Glucosidase and α-Amylase Inhibitory Activity Evaluation of Azido- and Aminocyclitols. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402762] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Donohoe TJ, Callens CKA, Lacy AR, Winter C. Tethered Aminohydroxylation Reaction and Its Application to Total Synthesis. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101464] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Timothy J. Donohoe
- Department of Chemistry, Chemical Research Laboratories, University of Oxford, Mansfield Road, Oxford OX1 1RU, UK, Fax: +44‐1865‐275708
| | - Cedric K. A. Callens
- Department of Chemistry, Chemical Research Laboratories, University of Oxford, Mansfield Road, Oxford OX1 1RU, UK, Fax: +44‐1865‐275708
| | - Adam R. Lacy
- Department of Chemistry, Chemical Research Laboratories, University of Oxford, Mansfield Road, Oxford OX1 1RU, UK, Fax: +44‐1865‐275708
| | - Christian Winter
- Department of Chemistry, Chemical Research Laboratories, University of Oxford, Mansfield Road, Oxford OX1 1RU, UK, Fax: +44‐1865‐275708
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Donohoe TJ, Lacy AR, Rathi AH, Walter DS. The Influence of Exocyclic Stereochemistry on the Tethered Aminohydroxylation Reaction. Chem Asian J 2011; 6:3214-22. [DOI: 10.1002/asia.201100497] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2011] [Indexed: 11/10/2022]
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Donohoe TJ, Callens CKA, Flores A, Lacy AR, Rathi AH. Recent Developments in Methodology for the Direct Oxyamination of Olefins. Chemistry 2010; 17:58-76. [DOI: 10.1002/chem.201002323] [Citation(s) in RCA: 220] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Wang J, Stefane B, Jaber D, Smith J, Vickery C, Diop M, Sintim H. Remote CH Functionalization: Using the NO Moiety as an Atom-Economical Tether to Obtain 1,5- and the Rare 1,7-CH Insertions. Angew Chem Int Ed Engl 2010; 49:3964-8. [DOI: 10.1002/anie.201000160] [Citation(s) in RCA: 27] [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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Wang J, Stefane B, Jaber D, Smith J, Vickery C, Diop M, Sintim H. Remote CH Functionalization: Using the NO Moiety as an Atom-Economical Tether to Obtain 1,5- and the Rare 1,7-CH Insertions. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201000160] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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