1
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Mamirgova ZZ, Zinin AI, Chizhov AO, Kononov LO. Synthesis of sialyl halides with various acyl protective groups. Carbohydr Res 2024; 536:109033. [PMID: 38295530 DOI: 10.1016/j.carres.2024.109033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/31/2023] [Accepted: 01/05/2024] [Indexed: 02/02/2024]
Abstract
Glycosyl halides are historically one of the first glycosyl donors used in glycosylation reactions, and interest in glycosylation reactions involving this class of glycosyl donors is currently increasing. New methods for their activation have been proposed and effective syntheses of oligosaccharides with their participation have been developed. At the same time, the possibilities of using these approaches to the synthesis of sialosides are restricted by the limited diversity of known sialyl halides (previously, mainly sialyl chlorides, less often sialyl bromides and sialyl fluorides, with acetyl (Ac) groups at the oxygen atoms and AcNH, Ac2N and N3 groups at C-5 were used). This work describes the synthesis of six new N-acetyl- and N-trifluoroacetyl-sialyl chlorides and bromides with O-chloroacetyl and O-trifluoroacetyl protective groups. Preparation of N,O-trifluoroacetyl protected derivatives was made possible due to development of the synthesis of sialic acid methyl ester pentaol with N-trifluoroacetyl group.
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Affiliation(s)
- Zarina Z Mamirgova
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, Leninsky Prosp. 47, 119991, Russian Federation
| | - Alexander I Zinin
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, Leninsky Prosp. 47, 119991, Russian Federation
| | - Alexander O Chizhov
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, Leninsky Prosp. 47, 119991, Russian Federation
| | - Leonid O Kononov
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, Leninsky Prosp. 47, 119991, Russian Federation.
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2
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Remmerswaal WA, Hansen T, Hamlin TA, Codée JDC. Origin of Stereoselectivity in S E 2' Reactions of Six-membered Ring Oxocarbenium Ions. Chemistry 2023; 29:e202203490. [PMID: 36511875 DOI: 10.1002/chem.202203490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 12/15/2022]
Abstract
Oxocarbenium ions are key reactive intermediates in organic chemistry. To generate a series of structure-reactivity-stereoselectivity principles for these species, we herein investigated the bimolecular electrophilic substitution reactions (SE 2') between allyltrimethylsilane and a series of archetypal six-membered ring oxocarbenium ions using a combined density functional theory (DFT) and coupled-cluster theory approach. These reactions preferentially proceed following a reaction path where the oxocarbenium ion transforms from a half chair (3 H4 or 4 H3 ) to a chair conformation. The introduction of alkoxy substituents on six-membered ring oxocarbenium ions, dramatically influences the conformational preference of the canonical 3 H4 and 4 H3 conformers, and thereby the stereochemical outcome of the SE 2' reaction. In general, we find that the stereoselectivity in the reactions correlates to the "intrinsic preference" of the cations, as dictated by their shape. However, for the C5-CH2 OMe substituent, steric factors override the "intrinsic preference", showing a more selective reaction than expected based on the shape of the ion. Our SE 2' energetics correlate well with experimentally observed stereoselectivity, and the use of the activation strain model has enabled us to quantify important interactions and structural features that occur in the transition state of the reactions to precisely understand the relative energy barriers of the diastereotopic addition reactions. The fundamental mechanistic insight provided in this study will aid in understanding the reactivity of more complex glycosyl cations featuring multiple substituents and will facilitate our general understanding of glycosylation reactions.
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Affiliation(s)
- Wouter A Remmerswaal
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC, Leiden (The, Netherlands
| | - Thomas Hansen
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC, Leiden (The, Netherlands.,Department of Theoretical Chemistry Amsterdam Institute of Molecular and Life Sciences (AIMMS) Amsterdam Center for Multiscale Modeling (ACMM), Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV, Amsterdam (The, Netherlands
| | - Trevor A Hamlin
- Department of Theoretical Chemistry Amsterdam Institute of Molecular and Life Sciences (AIMMS) Amsterdam Center for Multiscale Modeling (ACMM), Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV, Amsterdam (The, Netherlands
| | - Jeroen D C Codée
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC, Leiden (The, Netherlands
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3
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Takumi M, Sakaue H, Shibasaki D, Nagaki A. Rapid access to organic triflates based on flash generation of unstable sulfonium triflates in flow. Chem Commun (Camb) 2022; 58:8344-8347. [PMID: 35797717 DOI: 10.1039/d2cc02344j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Flash (extremely fast) electrochemical generation of unstable arylbis(arylthio)sulfonium triflates [ArS(ArSSAr)]+ [OTf]- that are unsuitable for accumulation in batch processes was achieved within 10 s in a divided-type flow electrochemcial reactor, enabling one-flow access to vinyl triflates, short-lived oxocarbenium triflates and glycosyl triflates.
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Affiliation(s)
- Masahiro Takumi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
| | - Hodaka Sakaue
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
| | - Daiki Shibasaki
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
| | - Aiichiro Nagaki
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan
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4
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Abstract
A voltammetric study of a series of alkyl and aryl S-glucosides unveiled the reactivity patterns of alkyl S-glucosides toward anodic oxidation and found noteworthy differences with the trends followed by aryl derivatives. The oxidation potential of alkyl S-glucosides, estimated herein from square-wave voltammetry peak potentials (Ep), depends on the steric properties of the aglycone. Glucosides substituted with bulky groups exhibit Ep values at voltages more positive than the values of those carrying small aglycones. This relationship, observed in all analyzed alkyl series, is evidenced by good linear correlations between Ep and Taft's steric parameters (ES) of the respective alkyl substituents. Moreover, the role of the aglycone's steric properties as a primary reactivity modulator is backed by poor correlations between Ep and the radical stabilization energies (RSEs) of the aglycone-derived thiyl radicals (RS•). In contrast, aryl glucosides' Ep values exhibit excellent correlations with the aryl substituents' Hammett parameters (σ+) and the ArS• RSEs, evidencing the inherent stability of the reactive radical intermediate as the primary factor controlling aryl glucoside's electrochemical reactivity. The reactivity differences between alkyl and aryl S-glucosides also extend to the protective group's effect on Ep. Alkyl S-glucosides' reactivity proved to be more sensitive to protective group exchange.
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Affiliation(s)
- Bhavesh Deore
- Department of Pharmaceutical Sciences, St. John's University, 8000 Utopia Parkway, Queens, New York 11439, United States
| | - Joseph E Ocando
- Department of Pharmaceutical Sciences, St. John's University, 8000 Utopia Parkway, Queens, New York 11439, United States.,Department of Chemistry, St. John's University, 8000 Utopia Parkway, Queens, New York 11439, United States
| | - Lan D Pham
- Department of Pharmaceutical Sciences, St. John's University, 8000 Utopia Parkway, Queens, New York 11439, United States.,Department of Chemistry, St. John's University, 8000 Utopia Parkway, Queens, New York 11439, United States
| | - Carlos A Sanhueza
- Department of Pharmaceutical Sciences, St. John's University, 8000 Utopia Parkway, Queens, New York 11439, United States
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5
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Flash Electrochemical Approach to Carbocations. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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6
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Takumi M, Sakaue H, Nagaki A. Flash Electrochemical Approach to Carbocations. Angew Chem Int Ed Engl 2021; 61:e202116177. [PMID: 34931424 DOI: 10.1002/anie.202116177] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Indexed: 11/07/2022]
Abstract
A novel flow electrochemical reactor that accomplishes electrolysis within a few seconds in a single passage was developed. By using the flow reactor system, the flash electrochemical generation of short-lived carbocations, including oxocarbenium ions, N -acyliminium ions, glycosyl cations, and Ferrier cations was achieved within a few seconds, enabling the subsequent reaction with nucleophiles before their decomposition. Moreover, continuous operation based on the present system enabled the rapid synthesis of pharmaceutical precursors on demand.
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Affiliation(s)
- Masahiro Takumi
- Graduate School of Engineering, Kyoto University, Department of Synthetic Chemistry and Biological Chemistry, JAPAN
| | - Hodaka Sakaue
- Graduate School of Engineering, Kyoto University, Department of Synthetic Chemistry and Biological Chemistry, JAPAN
| | - Aiichiro Nagaki
- Kyoto University, Graduate School of Engineering, Department of Synthetic Chemistry & Biological Chemistry, Katsura, 615-8510, Kyoto, JAPAN
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7
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Shibuya A, Nokami T. Electrochemical Assembly for Synthesis of Middle-Sized Organic Molecules. CHEM REC 2021; 21:2389-2396. [PMID: 34101967 DOI: 10.1002/tcr.202100085] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 05/21/2021] [Indexed: 12/23/2022]
Abstract
Electrochemical methods offer a powerful, reliable, and environmentally benign approach for the synthesis of small organic molecules, and such methods are useful not only for the transformation of small molecules, but also for the preparation of oligomers and polymers. Electrochemical assembly is a concept that allows structurally well-defined middle-sized organic molecules to be synthesized by applying electrochemical methods. The preparation of dendrimers, dendronized polymers, and oligosaccharides are introduced as examples of such an approach. Automated electrochemical assembly of oligosaccharides is also demonstrated using the electrochemical synthesizer developed by our group.
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Affiliation(s)
- Akito Shibuya
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyamacho-minami, Tottori city, 680-8552 Tottori, Japan
| | - Toshiki Nokami
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyamacho-minami, Tottori city, 680-8552 Tottori, Japan.,Center for Research on Green Sustainable Chemistry, Faculty of Engineering, Tottori University, 4-101 Koyamacho-minami, Tottori city, 680-8552 Tottori, Japan
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8
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Franconetti A, Ardá A, Asensio JL, Blériot Y, Thibaudeau S, Jiménez-Barbero J. Glycosyl Oxocarbenium Ions: Structure, Conformation, Reactivity, and Interactions. Acc Chem Res 2021; 54:2552-2564. [PMID: 33930267 PMCID: PMC8173606 DOI: 10.1021/acs.accounts.1c00021] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Indexed: 12/13/2022]
Abstract
Carbohydrates (glycans, saccharides, and sugars) are essential molecules in all domains of life. Research on glycoscience spans from chemistry to biomedicine, including material science and biotechnology. Access to pure and well-defined complex glycans using synthetic methods depends on the success of the employed glycosylation reaction. In most cases, the mechanism of the glycosylation reaction is believed to involve the oxocarbenium ion. Understanding the structure, conformation, reactivity, and interactions of this glycosyl cation is essential to predict the outcome of the reaction. In this Account, building on our contributions on this topic, we discuss the theoretical and experimental approaches that have been employed to decipher the key features of glycosyl cations, from their structures to their interactions and reactivity.We also highlight that, from a chemical perspective, the glycosylation reaction can be described as a continuum, from unimolecular SN1 with naked oxocarbenium cations as intermediates to bimolecular SN2-type mechanisms, which involve the key role of counterions and donors. All these factors should be considered and are discussed herein. The importance of dissociative mechanisms (involving contact ion pairs, solvent-separated ion pairs, solvent-equilibrated ion pairs) with bimolecular features in most reactions is also highlighted.The role of theoretical calculations to predict the conformation, dynamics, and reactivity of the oxocarbenium ion is also discussed, highlighting the advances in this field that now allow access to the conformational preferences of a variety of oxocarbenium ions and their reactivities under SN1-like conditions.Specifically, the ground-breaking use of superacids to generate these cations is emphasized, since it has permitted characterization of the structure and conformation of a variety of glycosyl oxocarbenium ions in superacid solution by NMR spectroscopy.We also pay special attention to the reactivity of these glycosyl ions, which depends on the conditions, including the counterions, the possible intra- or intermolecular participation of functional groups that may stabilize the cation and the chemical nature of the acceptor, either weak or strong nucleophile. We discuss recent investigations from different experimental perspectives, which identified the involved ionic intermediates, estimating their lifetimes and reactivities and studying their interactions with other molecules. In this context, we also emphasize the relationship between the chemical methods that can be employed to modulate the sensitivity of glycosyl cations and the way in which glycosyl modifying enzymes (glycosyl hydrolases and transferases) build and cleave glycosidic linkages in nature. This comparison provides inspiration on the use of molecules that regulate the stability and reactivity of glycosyl cations.
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Affiliation(s)
- Antonio Franconetti
- CIC
bioGUNE, Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, Building
800, 48160 Derio, Spain
| | - Ana Ardá
- CIC
bioGUNE, Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, Building
800, 48160 Derio, Spain
- lkerbasque,
Basque Foundation for Science, Maria Diaz de Haro 13, 48009 Bilbao, Spain
| | - Juan Luis Asensio
- Instituto
de Química Orgánica (IQOG-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Yves Blériot
- Université
de Poitiers, IC2MP, UMR CNRS
7285, Equipe “OrgaSynth”, 4 rue Michel Brunet, 86073 cedex 9 Poitiers, France
| | - Sébastien Thibaudeau
- Université
de Poitiers, IC2MP, UMR CNRS
7285, Equipe “OrgaSynth”, 4 rue Michel Brunet, 86073 cedex 9 Poitiers, France
| | - Jesús Jiménez-Barbero
- CIC
bioGUNE, Basque Research and Technology Alliance (BRTA), Bizkaia Technology Park, Building
800, 48160 Derio, Spain
- lkerbasque,
Basque Foundation for Science, Maria Diaz de Haro 13, 48009 Bilbao, Spain
- Department
of Organic Chemistry II, Faculty of Science & Technology, University of the Basque Country, 48940 Leioa, Bizkaia, Spain
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9
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Meng S, Li X, Zhu J. Recent advances in direct synthesis of 2-deoxy glycosides and thioglycosides. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132140] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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10
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Bhuma N, Lebedel L, Yamashita H, Shimizu Y, Abada Z, Ardá A, Désiré J, Michelet B, Martin‐Mingot A, Abou‐Hassan A, Takumi M, Marrot J, Jiménez‐Barbero J, Nagaki A, Blériot Y, Thibaudeau S. Insight into the Ferrier Rearrangement by Combining Flash Chemistry and Superacids. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202010175] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Naresh Bhuma
- IC2MP UMR CNRS 7285 Equipe “Synthèse Organique” Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Ludivine Lebedel
- IC2MP UMR CNRS 7285 Equipe “Synthèse Organique” Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Hiroki Yamashita
- Department of Synthetic and Biological Chemistry Graduate School of Engineering Kyoto University Japan
| | - Yutaka Shimizu
- Department of Synthetic and Biological Chemistry Graduate School of Engineering Kyoto University Japan
| | - Zahra Abada
- IC2MP UMR CNRS 7285 Equipe “Synthèse Organique” Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
- Sorbonne Université CNRS UMR 8234 PHysico-chimie des Électrolytes et Nanosystèmes InterfaciauX (PHENIX) 75005 Paris France
| | - Ana Ardá
- CIC bioGUNE Parque technologico de Bizkaia Edif. 801A-1° 48160 Derio-Bizkaia Spain
- Ikerbasque Basque Foundation for Science Maria Lopez de Haro 3 48013 Bilbao Spain
| | - Jérôme Désiré
- IC2MP UMR CNRS 7285 Equipe “Synthèse Organique” Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Bastien Michelet
- IC2MP UMR CNRS 7285 Equipe “Synthèse Organique” Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Agnès Martin‐Mingot
- IC2MP UMR CNRS 7285 Equipe “Synthèse Organique” Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Ali Abou‐Hassan
- Sorbonne Université CNRS UMR 8234 PHysico-chimie des Électrolytes et Nanosystèmes InterfaciauX (PHENIX) 75005 Paris France
| | - Masahiro Takumi
- Department of Synthetic and Biological Chemistry Graduate School of Engineering Kyoto University Japan
| | - Jérôme Marrot
- Institut Lavoisier de Versailles UMR CNRS 8180 45 avenue des Etats-Unis 78035 Versailles Cedex France
| | - Jesús Jiménez‐Barbero
- CIC bioGUNE Parque technologico de Bizkaia Edif. 801A-1° 48160 Derio-Bizkaia Spain
- Ikerbasque Basque Foundation for Science Maria Lopez de Haro 3 48013 Bilbao Spain
| | - Aiichiro Nagaki
- Department of Synthetic and Biological Chemistry Graduate School of Engineering Kyoto University Japan
| | - Yves Blériot
- IC2MP UMR CNRS 7285 Equipe “Synthèse Organique” Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Sébastien Thibaudeau
- IC2MP UMR CNRS 7285 Equipe “Synthèse Organique” Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
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11
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Bhuma N, Lebedel L, Yamashita H, Shimizu Y, Abada Z, Ardá A, Désiré J, Michelet B, Martin‐Mingot A, Abou‐Hassan A, Takumi M, Marrot J, Jiménez‐Barbero J, Nagaki A, Blériot Y, Thibaudeau S. Insight into the Ferrier Rearrangement by Combining Flash Chemistry and Superacids. Angew Chem Int Ed Engl 2020; 60:2036-2041. [DOI: 10.1002/anie.202010175] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/30/2020] [Indexed: 01/31/2023]
Affiliation(s)
- Naresh Bhuma
- IC2MP UMR CNRS 7285 Equipe “Synthèse Organique” Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Ludivine Lebedel
- IC2MP UMR CNRS 7285 Equipe “Synthèse Organique” Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Hiroki Yamashita
- Department of Synthetic and Biological Chemistry Graduate School of Engineering Kyoto University Japan
| | - Yutaka Shimizu
- Department of Synthetic and Biological Chemistry Graduate School of Engineering Kyoto University Japan
| | - Zahra Abada
- IC2MP UMR CNRS 7285 Equipe “Synthèse Organique” Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
- Sorbonne Université CNRS UMR 8234 PHysico-chimie des Électrolytes et Nanosystèmes InterfaciauX (PHENIX) 75005 Paris France
| | - Ana Ardá
- CIC bioGUNE Parque technologico de Bizkaia Edif. 801A-1° 48160 Derio-Bizkaia Spain
- Ikerbasque Basque Foundation for Science Maria Lopez de Haro 3 48013 Bilbao Spain
| | - Jérôme Désiré
- IC2MP UMR CNRS 7285 Equipe “Synthèse Organique” Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Bastien Michelet
- IC2MP UMR CNRS 7285 Equipe “Synthèse Organique” Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Agnès Martin‐Mingot
- IC2MP UMR CNRS 7285 Equipe “Synthèse Organique” Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Ali Abou‐Hassan
- Sorbonne Université CNRS UMR 8234 PHysico-chimie des Électrolytes et Nanosystèmes InterfaciauX (PHENIX) 75005 Paris France
| | - Masahiro Takumi
- Department of Synthetic and Biological Chemistry Graduate School of Engineering Kyoto University Japan
| | - Jérôme Marrot
- Institut Lavoisier de Versailles UMR CNRS 8180 45 avenue des Etats-Unis 78035 Versailles Cedex France
| | - Jesús Jiménez‐Barbero
- CIC bioGUNE Parque technologico de Bizkaia Edif. 801A-1° 48160 Derio-Bizkaia Spain
- Ikerbasque Basque Foundation for Science Maria Lopez de Haro 3 48013 Bilbao Spain
| | - Aiichiro Nagaki
- Department of Synthetic and Biological Chemistry Graduate School of Engineering Kyoto University Japan
| | - Yves Blériot
- IC2MP UMR CNRS 7285 Equipe “Synthèse Organique” Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Sébastien Thibaudeau
- IC2MP UMR CNRS 7285 Equipe “Synthèse Organique” Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
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12
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Ashikari Y, Saito K, Nokami T, Yoshida JI, Nagaki A. Oxo-Thiolation of Cationically Polymerizable Alkenes Using Flow Microreactors. Chemistry 2019; 25:15239-15243. [PMID: 31414708 DOI: 10.1002/chem.201903426] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 08/14/2019] [Indexed: 01/11/2023]
Abstract
The present study describes the cationic oxo-thiolation of polymerizable alkenes by using highly reactive cationic species generated by anodic oxidation. These highly reactive cations were able to activate alkenes before their polymerization. Fast mixing in flow microreactors effectively controlled chemoselectivity, enabling higher reaction temperatures.
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Affiliation(s)
- Yosuke Ashikari
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Kodai Saito
- Department of Chemistry, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Toshiki Nokami
- Department of Chemistry and Biotechnology and Center for Research on Green Sustainable Chemistry, Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori, 680-8552, Japan
| | - Jun-Ichi Yoshida
- National Institute of Technology, Suzuka College, Shiroko-cho, Suzuka, Mie, 510-0294, Japan
| | - Aiichiro Nagaki
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
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13
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Lebedel L, Ardá A, Martin A, Désiré J, Mingot A, Aufiero M, Aiguabella Font N, Gilmour R, Jiménez‐Barbero J, Blériot Y, Thibaudeau S. Structural and Computational Analysis of 2‐Halogeno‐Glycosyl Cations in the Presence of a Superacid: An Expansive Platform. Angew Chem Int Ed Engl 2019; 58:13758-13762. [DOI: 10.1002/anie.201907001] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 06/28/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Ludivine Lebedel
- IC2MP UMR CNRS 7285, Equipe “Synthèse Organique”Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Ana Ardá
- CIC bioGUNE Parque technologico de Bizkaia, Edif. 801A-1° Derio-Bizkaia 48160 Spain
- Ikerbasque, Basque Foundation for Science Maria Lopez de Haro 3 48013 Bilbao Spain
| | - Amélie Martin
- IC2MP UMR CNRS 7285, Equipe “Synthèse Organique”Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Jérôme Désiré
- IC2MP UMR CNRS 7285, Equipe “Synthèse Organique”Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Agnès Mingot
- IC2MP UMR CNRS 7285, Equipe “Synthèse Organique”Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Marialuisa Aufiero
- Organisch Chemisches InstitutWestfälische Wilhelms Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Nuria Aiguabella Font
- Organisch Chemisches InstitutWestfälische Wilhelms Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Ryan Gilmour
- Organisch Chemisches InstitutWestfälische Wilhelms Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Jesus Jiménez‐Barbero
- CIC bioGUNE Parque technologico de Bizkaia, Edif. 801A-1° Derio-Bizkaia 48160 Spain
- Ikerbasque, Basque Foundation for Science Maria Lopez de Haro 3 48013 Bilbao Spain
| | - Yves Blériot
- IC2MP UMR CNRS 7285, Equipe “Synthèse Organique”Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Sébastien Thibaudeau
- IC2MP UMR CNRS 7285, Equipe “Synthèse Organique”Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
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14
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Lebedel L, Ardá A, Martin A, Désiré J, Mingot A, Aufiero M, Aiguabella Font N, Gilmour R, Jiménez‐Barbero J, Blériot Y, Thibaudeau S. Structural and Computational Analysis of 2‐Halogeno‐Glycosyl Cations in the Presence of a Superacid: An Expansive Platform. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ludivine Lebedel
- IC2MP UMR CNRS 7285, Equipe “Synthèse Organique”Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Ana Ardá
- CIC bioGUNE Parque technologico de Bizkaia, Edif. 801A-1° Derio-Bizkaia 48160 Spain
- Ikerbasque, Basque Foundation for Science Maria Lopez de Haro 3 48013 Bilbao Spain
| | - Amélie Martin
- IC2MP UMR CNRS 7285, Equipe “Synthèse Organique”Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Jérôme Désiré
- IC2MP UMR CNRS 7285, Equipe “Synthèse Organique”Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Agnès Mingot
- IC2MP UMR CNRS 7285, Equipe “Synthèse Organique”Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Marialuisa Aufiero
- Organisch Chemisches InstitutWestfälische Wilhelms Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Nuria Aiguabella Font
- Organisch Chemisches InstitutWestfälische Wilhelms Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Ryan Gilmour
- Organisch Chemisches InstitutWestfälische Wilhelms Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Jesus Jiménez‐Barbero
- CIC bioGUNE Parque technologico de Bizkaia, Edif. 801A-1° Derio-Bizkaia 48160 Spain
- Ikerbasque, Basque Foundation for Science Maria Lopez de Haro 3 48013 Bilbao Spain
| | - Yves Blériot
- IC2MP UMR CNRS 7285, Equipe “Synthèse Organique”Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
| | - Sébastien Thibaudeau
- IC2MP UMR CNRS 7285, Equipe “Synthèse Organique”Université de Poitiers 4 rue Michel Brunet 86073 Poitiers cedex 9 France
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15
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Abstract
Deoxy-sugars often play a critical role in modulating the potency of many bioactive natural products. Accordingly, there has been sustained interest in methods for their synthesis over the past several decades. The focus of much of this work has been on developing new glycosylation reactions that permit the mild and selective construction of deoxyglycosides. This Review covers classical approaches to deoxyglycoside synthesis, as well as more recently developed chemistry that aims to control the selectivity of the reaction through rational design of the promoter. Where relevant, the application of this chemistry to natural product synthesis will also be described.
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Affiliation(s)
- Clay S. Bennett
- Department
of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - M. Carmen Galan
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
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16
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Adero PO, Amarasekara H, Wen P, Bohé L, Crich D. The Experimental Evidence in Support of Glycosylation Mechanisms at the S N1-S N2 Interface. Chem Rev 2018; 118:8242-8284. [PMID: 29846062 PMCID: PMC6135681 DOI: 10.1021/acs.chemrev.8b00083] [Citation(s) in RCA: 219] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A critical review of the state-of-the-art evidence in support of the mechanisms of glycosylation reactions is provided. Factors affecting the stability of putative oxocarbenium ions as intermediates at the SN1 end of the mechanistic continuum are first surveyed before the evidence, spectroscopic and indirect, for the existence of such species on the time scale of glycosylation reactions is presented. Current models for diastereoselectivity in nucleophilic attack on oxocarbenium ions are then described. Evidence in support of the intermediacy of activated covalent glycosyl donors is reviewed, before the influences of the structure of the nucleophile, of the solvent, of temperature, and of donor-acceptor hydrogen bonding on the mechanism of glycosylation reactions are surveyed. Studies on the kinetics of glycosylation reactions and the use of kinetic isotope effects for the determination of transition-state structure are presented, before computational models are finally surveyed. The review concludes with a critical appraisal of the state of the art.
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Affiliation(s)
- Philip Ouma Adero
- Department of Chemistry , Wayne State University , 5101 Cass Avenue , Detroit , Michigan 48202 , United States
| | - Harsha Amarasekara
- Department of Chemistry , Wayne State University , 5101 Cass Avenue , Detroit , Michigan 48202 , United States
| | - Peng Wen
- Department of Chemistry , Wayne State University , 5101 Cass Avenue , Detroit , Michigan 48202 , United States
| | - Luis Bohé
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301 , Université Paris-Sud Université Paris-Saclay , 1 avenue de la Terrasse , 91198 Gif-sur-Yvette , France
| | - David Crich
- Department of Chemistry , Wayne State University , 5101 Cass Avenue , Detroit , Michigan 48202 , United States
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17
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Manmode S, Matsumoto K, Nokami T, Itoh T. Electrochemical Methods as Enabling Tools for Glycosylation. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800302] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sujit Manmode
- Department of Chemistry and Biotechnology; Graduate School of Engineering; Tottori University; 4-101 Koyamacho-minami Tottori city 680-8552 Tottori Japan
| | - Kouichi Matsumoto
- Department of Chemistry; Faculty of Science and Engineering; Kindai University; 3-4-1 Kowakae Higashi-Osaka city 577-8502 Osaka Japan
| | - Toshiki Nokami
- Department of Chemistry and Biotechnology; Graduate School of Engineering; Tottori University; 4-101 Koyamacho-minami Tottori city 680-8552 Tottori Japan
- Centre for Research on Green Sustainable Chemistry; Faculty of Engineering; Tottori University Japan
| | - Toshiyuki Itoh
- Department of Chemistry and Biotechnology; Graduate School of Engineering; Tottori University; 4-101 Koyamacho-minami Tottori city 680-8552 Tottori Japan
- Centre for Research on Green Sustainable Chemistry; Faculty of Engineering; Tottori University Japan
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18
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Mitsudo K, Kurimoto Y, Yoshioka K, Suga S. Miniaturization and Combinatorial Approach in Organic Electrochemistry. Chem Rev 2018; 118:5985-5999. [DOI: 10.1021/acs.chemrev.7b00532] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Koichi Mitsudo
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Yuji Kurimoto
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Kazuki Yoshioka
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Seiji Suga
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
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19
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Yan M, Kawamata Y, Baran PS. Synthetic Organic Electrochemical Methods Since 2000: On the Verge of a Renaissance. Chem Rev 2017; 117:13230-13319. [PMID: 28991454 PMCID: PMC5786875 DOI: 10.1021/acs.chemrev.7b00397] [Citation(s) in RCA: 1924] [Impact Index Per Article: 274.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Electrochemistry represents one of the most intimate ways of interacting with molecules. This review discusses advances in synthetic organic electrochemistry since 2000. Enabling methods and synthetic applications are analyzed alongside innate advantages as well as future challenges of electroorganic chemistry.
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Affiliation(s)
| | | | - Phil S. Baran
- Department of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
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20
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Yoshida JI, Shimizu A, Hayashi R. Electrogenerated Cationic Reactive Intermediates: The Pool Method and Further Advances. Chem Rev 2017; 118:4702-4730. [PMID: 29077393 DOI: 10.1021/acs.chemrev.7b00475] [Citation(s) in RCA: 364] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Electrochemistry serves as a powerful method for generating reactive intermediates, such as organic cations. In general, there are two ways to use reactive intermediates for chemical reactions: (1) generation in the presence of a reaction partner and (2) generation in the absence of a reaction partner with accumulation in solution as a "pool" followed by reaction with a subsequently added reaction partner. The former approach is more popular because reactive intermediates are usually short-lived transient species, but the latter method is more flexible and versatile. This review focuses on the latter approach and provides a concise overview of the current methods for the generation and accumulation of cationic reactive intermediates as a pool using modern techniques of electrochemistry and their reactions with subsequently added nucleophilic reaction partners.
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Affiliation(s)
- Jun-Ichi Yoshida
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering , Kyoto University , Nishikyo-ku , Kyoto 615-8510 , Japan
| | - Akihiro Shimizu
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering , Kyoto University , Nishikyo-ku , Kyoto 615-8510 , Japan
| | - Ryutaro Hayashi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering , Kyoto University , Nishikyo-ku , Kyoto 615-8510 , Japan
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21
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Atobe M, Tateno H, Matsumura Y. Applications of Flow Microreactors in Electrosynthetic Processes. Chem Rev 2017; 118:4541-4572. [DOI: 10.1021/acs.chemrev.7b00353] [Citation(s) in RCA: 206] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mahito Atobe
- Department of Environment and System Sciences, Yokohama National University, Tokiwadai 79-7, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Hiroyuki Tateno
- Department of Environment and System Sciences, Yokohama National University, Tokiwadai 79-7, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Yoshimasa Matsumura
- Department of Chemistry and Chemical Engineering, Faculty of Engineering, Yamagata University, Jonan 4-3-16, Yonezawa, Yamagata 992-8510, Japan
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22
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Li X, Zhu J. Glycosylation via Transition-Metal Catalysis: Challenges and Opportunities. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600484] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaohua Li
- Department of Natural Sciences; University of Michigan-Dearborn; 4901 Evergreen Road 48128 Dearborn Michigan USA
| | - Jianglong Zhu
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering; The University of Toledo; 2801 West Bancroft Street 43606 Toledo Ohio USA
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23
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Development of anodic modification reaction of N -acryloyl-proline derivatives using lithium perchlorate-nitromethane system. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.03.073] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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24
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Shimizu A, Takeda K, Mishima S, Saito K, Kim S, Nokami T, Yoshida JI. Generation, Characterization, and Reactions of Thionium Ions Based on the Indirect Cation Pool Method. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2016. [DOI: 10.1246/bcsj.20150323] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Akihiro Shimizu
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
| | - Keiji Takeda
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
| | - Shota Mishima
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
| | - Kodai Saito
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
| | - Songhee Kim
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
| | - Toshiki Nokami
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
| | - Jun-ichi Yoshida
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
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25
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Catching elusive glycosyl cations in a condensed phase with HF/SbF5 superacid. Nat Chem 2015; 8:186-91. [DOI: 10.1038/nchem.2399] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 10/13/2015] [Indexed: 01/22/2023]
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26
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Yoshida JI, Shimizu A, Ashikari Y, Morofuji T, Hayashi R, Nokami T, Nagaki A. Reaction Integration Using Electrogenerated Cationic Intermediates. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20150100] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jun-ichi Yoshida
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
| | - Akihiro Shimizu
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
| | - Yosuke Ashikari
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
| | - Tatsuya Morofuji
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
| | - Ryutaro Hayashi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
| | - Toshiki Nokami
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
| | - Aiichiro Nagaki
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
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27
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Zhu Y, Yu B. Highly Stereoselective β-Mannopyranosylation via the 1-α-Glycosyloxy-isochromenylium-4-gold(I) Intermediates. Chemistry 2015; 21:8771-80. [DOI: 10.1002/chem.201500648] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Indexed: 01/02/2023]
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28
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29
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Bohé L, Crich D. A propos of glycosyl cations and the mechanism of chemical glycosylation; the current state of the art. Carbohydr Res 2015; 403:48-59. [PMID: 25108484 PMCID: PMC4281519 DOI: 10.1016/j.carres.2014.06.020] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 06/16/2014] [Accepted: 06/19/2014] [Indexed: 12/23/2022]
Abstract
An overview of recent advances in glycosylation with particular emphasis on mechanism is presented. The mounting evidence for both the existence of glycosyl oxocarbenium ions as fleeting intermediates in some reactions, and the crucial role of the associated counterion in others is discussed. The extremes of the SN1 and SN2 manifolds for the glycosylation reaction are bridged by a continuum of mechanisms in which it appears likely that most examples are located.
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Affiliation(s)
- Luis Bohé
- Centre de Recherche de Gif, CNRS, Institut de Chimie des Substances Naturelles, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - David Crich
- Department of Chemistry, Wayne State University, 5101 Cass Ave, Detroit, MI 48202, USA.
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30
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Matsumoto K, Miyamoto Y, Shimada K, Morisawa Y, Zipse H, Suga S, Yoshida JI, Kashimura S, Wakabayashi T. Low temperature in situ Raman spectroscopy of an electro-generated arylbis(arylthio)sulfonium ion. Chem Commun (Camb) 2015; 51:13106-9. [DOI: 10.1039/c5cc03585f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Low temperature in situ Raman spectroscopy detects reactive intermediate cations generated by the electrochemical oxidation in organic chemistry.
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Affiliation(s)
- Kouichi Matsumoto
- Department of Chemistry
- School of Science and Engineering
- Kindai University
- Osaka 577-8502
- Japan
| | - Yu Miyamoto
- Department of Chemistry
- School of Science and Engineering
- Kindai University
- Osaka 577-8502
- Japan
| | - Kazuaki Shimada
- Department of Chemistry
- School of Science and Engineering
- Kindai University
- Osaka 577-8502
- Japan
| | - Yusuke Morisawa
- Department of Chemistry
- School of Science and Engineering
- Kindai University
- Osaka 577-8502
- Japan
| | - Hendrik Zipse
- Department of Chemistry
- LMU München
- D-81377 München
- Germany
| | - Seiji Suga
- Graduate School of Natural Science and Technology
- Okayama University
- Okayama 700-8530
- Japan
| | - Jun-ichi Yoshida
- Department of Synthetic Chemistry and Biological Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Shigenori Kashimura
- Department of Chemistry
- School of Science and Engineering
- Kindai University
- Osaka 577-8502
- Japan
| | - Tomonari Wakabayashi
- Department of Chemistry
- School of Science and Engineering
- Kindai University
- Osaka 577-8502
- Japan
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31
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Shoji T, Kim S, Yamamoto K, Kawai T, Okada Y, Chiba K. Anodic Substitution Reaction of Proline Derivatives Using the 2,4,6-Trimethoxyphenyl Leaving Group. Org Lett 2014; 16:6404-7. [DOI: 10.1021/ol503198p] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Takao Shoji
- Laboratory of Bio-organic
Chemistry, Tokyo University of Agriculture and Technology, 3-5-8
Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Shokaku Kim
- Laboratory of Bio-organic
Chemistry, Tokyo University of Agriculture and Technology, 3-5-8
Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Keisuke Yamamoto
- Laboratory of Bio-organic
Chemistry, Tokyo University of Agriculture and Technology, 3-5-8
Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Tomomitsu Kawai
- Laboratory of Bio-organic
Chemistry, Tokyo University of Agriculture and Technology, 3-5-8
Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Yohei Okada
- Laboratory of Bio-organic
Chemistry, Tokyo University of Agriculture and Technology, 3-5-8
Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Kazuhiro Chiba
- Laboratory of Bio-organic
Chemistry, Tokyo University of Agriculture and Technology, 3-5-8
Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
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32
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Cresswell AJ, Davies SG, Roberts PM, Thomson JE. Beyond the Balz-Schiemann reaction: the utility of tetrafluoroborates and boron trifluoride as nucleophilic fluoride sources. Chem Rev 2014; 115:566-611. [PMID: 25084541 DOI: 10.1021/cr5001805] [Citation(s) in RCA: 127] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Alexander J Cresswell
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford , Mansfield Road, Oxford OX1 3TA, United Kingdom
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33
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Francke R, Little RD. Redox catalysis in organic electrosynthesis: basic principles and recent developments. Chem Soc Rev 2014; 43:2492-521. [DOI: 10.1039/c3cs60464k] [Citation(s) in RCA: 1071] [Impact Index Per Article: 107.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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34
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35
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Francke R, Little RD. Optimizing electron transfer mediators based on arylimidazoles by ring fusion: synthesis, electrochemistry, and computational analysis of 2-aryl-1-methylphenanthro[9,10-d]imidazoles. J Am Chem Soc 2013; 136:427-35. [PMID: 24328337 DOI: 10.1021/ja410865z] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A significant improvement of the properties of redox catalysts based on the triarylimidazole framework can be achieved with a simple structural modification. By linking the ortho-carbons of the aromatics positioned at C-4 and C-5, a fused framework is generated, removing the distortion from planarity and enhancing the influence of the substituents on the redox properties. This modification leads not only to a much broader range of available redox potentials for the resulting phenanthro[9,10-d]imidazoles but also to improved stability of the corresponding radical cation. These concepts were verified with eight new phenanthro[9,10-d]imidazole derivatives, using cyclic voltammetry and DFT calculations. For this purpose, an optimized and general synthetic route to the desired compounds was developed. An excellent linear correlation of the calculated effective ionization potentials with the experimental oxidation potentials was obtained, allowing for an accurate prediction of oxidation potentials of derivatives yet to be synthesized. Moreover, high catalytic activity was found for electro-oxidative C-H activation reactions.
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Affiliation(s)
- Robert Francke
- Department of Chemistry and Biochemistry, University of California , Santa Barbara, California 93106-9510, United States
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36
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Amii H, Nagaki A, Yoshida JI. Flow microreactor synthesis in organo-fluorine chemistry. Beilstein J Org Chem 2013; 9:2793-802. [PMID: 24367443 PMCID: PMC3869211 DOI: 10.3762/bjoc.9.314] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 11/05/2013] [Indexed: 11/23/2022] Open
Abstract
Organo-fluorine compounds are the substances of considerable interest in various industrial fields due to their unique physical and chemical properties. Despite increased demand in wide fields of science, synthesis of fluoro-organic compounds is still often faced with problems such as the difficulties in handling of fluorinating reagents and in controlling of chemical reactions. Recently, flow microreactor synthesis has emerged as a new methodology for producing chemical substances with high efficiency. This review outlines the successful examples of synthesis and reactions of fluorine-containing molecules by the use of flow microreactor systems to overcome long-standing problems in fluorine chemistry.
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Affiliation(s)
- Hideki Amii
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Aiichiro Nagaki
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Jun-Ichi Yoshida
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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37
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Matsumoto K, Shimazaki H, Sanada T, Shimada K, Hagiwara S, Suga S, Kashimura S, Yoshida JI. Electrogenerated Acid (EGA)-catalyzed Addition of Diaryl Disulfides to Carbon–Carbon Multiple Bonds. CHEM LETT 2013. [DOI: 10.1246/cl.130255] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | | | | | | | | | - Seiji Suga
- Division of Chemistry and Biotechnology, Graduate School of Natural Science and Technology, Okayama University
| | | | - Jun-ichi Yoshida
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University
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38
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Matsumoto K, Sanada T, Shimazaki H, Shimada K, Hagiwara S, Fujie S, Ashikari Y, Suga S, Kashimura S, Yoshida JI. The Addition of ArSSAr to Alkenes: The Implications of a Cationic Chain Mechanism Initiated by Electrogenerated ArS(ArSSAr)+. ASIAN J ORG CHEM 2013. [DOI: 10.1002/ajoc.201300017] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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39
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Ashikari Y, Nokami T, Yoshida JI. Integration of electrooxidative cyclization and chemical oxidation via alkoxysulfonium ions. Synthesis of exocyclic ketones from alkenes with cyclization. Org Biomol Chem 2013; 11:3322-31. [DOI: 10.1039/c3ob40315g] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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40
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Bernardes GJL. Highlights from the 48th EUCHEM conference on stereochemistry, Bürgenstock, Switzerland, May 2013. Chem Commun (Camb) 2013; 49:8578-82. [DOI: 10.1039/c3cc90259e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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NOKAMI T, WATANABE T, TERAO K, SOGA K, OHATA K, YOSHIDA JI. Multiple Alkylation of Thiophene Derivatives with Simple and Extended Diarylcarbenium Ion Pools. ELECTROCHEMISTRY 2013. [DOI: 10.5796/electrochemistry.81.399] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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42
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Yoshida JI, Ashikari Y, Matsumoto K, Nokami T. Recent Developments in the ^|^ldquo;Cation Pool^|^rdquo; Method. J SYN ORG CHEM JPN 2013. [DOI: 10.5059/yukigoseikyokaishi.71.1136] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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43
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Wever WJ, Cinelli MA, Bowers AA. Visible Light Mediated Activation and O-Glycosylation of Thioglycosides. Org Lett 2012; 15:30-3. [DOI: 10.1021/ol302941q] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Walter J. Wever
- Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Maris A. Cinelli
- Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Albert A. Bowers
- Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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Nokami T, Saito K, Yoshida JI. Synthetic carbohydrate research based on organic electrochemistry. Carbohydr Res 2012; 363:1-6. [DOI: 10.1016/j.carres.2012.09.023] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 09/26/2012] [Accepted: 09/28/2012] [Indexed: 12/16/2022]
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Moumé-Pymbock M, Crich D. Stereoselective C-glycoside formation with 2-O-benzyl-4,6-O-benzylidene protected 3-deoxy gluco- and mannopyranoside donors: comparison with O-glycoside formation. J Org Chem 2012; 77:8905-12. [PMID: 23009024 PMCID: PMC3501215 DOI: 10.1021/jo3011655] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Unlike alcohols, the reaction of C-nucleophiles with 2-O-benzyl-4,6-O-benzylidene-protected 3-deoxy-gluco- and mannopyranosyl thioglycosides is highly stereoselective providing the α-C-glycosides in the gluco-series and the β-C-glycosides in the manno-series. Conformational analysis of nucleophilic attack of putative intermediate glycosyl oxocarbenium ions suggests that the observed selectivities for C-glycoside formation can be explained by preferential attack on the opposite face of the oxocarbenium to the C2-H2 bond and that eclipsing interactions with this bond are the main stereodetermining factor. It is argued that the steric interactions in the attack of alcohols (sp(3)-hybridized O) and of typical carbon-based nucleophiles (sp(2) C) on oxocarbenium ions are very different, with the former being less severe, and thus that there is no a priori reason to expect O- and C-glycosylation to exhibit parallel stereoselectivities for attack on a given oxocarbenium ion.
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Affiliation(s)
- Myriame Moumé-Pymbock
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI 48202
| | - David Crich
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI 48202
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Oberbillig T, Löwe H, Hoffmann-Röder A. Synthesis of Fluorinated Glycosyl Amino Acid Building Blocks for MUC1 Cancer Vaccine Candidates by Microreactor-Assisted Glycosylation. J Flow Chem 2012. [DOI: 10.1556/jfc-d-12-00011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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47
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Huang M, Retailleau P, Bohé L, Crich D. Cation clock permits distinction between the mechanisms of α- and β-O- and β-C-glycosylation in the mannopyranose series: evidence for the existence of a mannopyranosyl oxocarbenium ion. J Am Chem Soc 2012; 134:14746-9. [PMID: 22920536 PMCID: PMC3448556 DOI: 10.1021/ja307266n] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The use of a cationic cyclization reaction as a probe of the glycosylation mechanism has been developed and applied to the 4,6-O-benzylidene-protected mannopyranoside system. Cyclization results in the formation of both cis- and trans-fused tricyclic systems, invoking an intermediate glycosyl oxocarbenium ion reacting through a boat conformation. Competition reactions with isopropanol and trimethyl(methallyl)silane are interpreted as indicating that β-O-mannosylation proceeds via an associative S(N)2-like mechanism, whereas α-O-mannosylation and β-C-mannosylation are dissociative and S(N)1-like. Relative rate constants for reactions going via a common intermediate can be estimated.
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Affiliation(s)
- Min Huang
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, 1 Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
| | - Pascal Retailleau
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, 1 Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
| | - Luis Bohé
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, 1 Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
| | - David Crich
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, 1 Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
- Department of Chemistry, Wayne State University, 5101 Cass Avenue Detroit, MI 48202, USA
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Desmet T, Soetaert W, Bojarová P, Křen V, Dijkhuizen L, Eastwick-Field V, Schiller A. Enzymatic glycosylation of small molecules: challenging substrates require tailored catalysts. Chemistry 2012; 18:10786-801. [PMID: 22887462 DOI: 10.1002/chem.201103069] [Citation(s) in RCA: 172] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Glycosylation can significantly improve the physicochemical and biological properties of small molecules like vitamins, antibiotics, flavors, and fragrances. The chemical synthesis of glycosides is, however, far from trivial and involves multistep routes that generate lots of waste. In this review, biocatalytic alternatives are presented that offer both stricter specificities and higher yields. The advantages and disadvantages of different enzyme classes are discussed and illustrated with a number of recent examples. Progress in the field of enzyme engineering and screening are expected to result in new applications of biocatalytic glycosylation reactions in various industrial sectors.
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Affiliation(s)
- Tom Desmet
- University of Ghent, Centre for Industrial Biotechnology and Biocatalysis, Gent, Belgium
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Huang M, Garrett GE, Birlirakis N, Bohé L, Pratt DA, Crich D. Dissecting the mechanisms of a class of chemical glycosylation using primary ¹³C kinetic isotope effects. Nat Chem 2012; 4:663-7. [PMID: 22824899 PMCID: PMC3404748 DOI: 10.1038/nchem.1404] [Citation(s) in RCA: 153] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Accepted: 06/07/2012] [Indexed: 01/13/2023]
Abstract
Although arguably the most important reaction in glycoscience, chemical glycosylations are among the least well understood of organic chemical reactions, resulting in an unnecessarily high degree of empiricism and a brake on rational development in this critical area. To address this problem, primary (13)C kinetic isotope effects have now been determined for the formation of β- and α-manno- and glucopyranosides using a natural abundance NMR method. In contrast to the common current assumption, for three of the four cases studied the experimental and computed values are indicative of associative displacement of the intermediate covalent glycosyl trifluoromethanesulfonates. For the formation of the α-mannopyranosides, the experimentally determined KIE differs significantly from that computed for an associative displacement, which is strongly suggestive of a dissociative mechanism that approaches the intermediacy of a glycosyl oxocarbenium ion. The application of analogous experiments to other glycosylation systems should shed further light on their mechanisms and thus assist in the design of better reactions conditions with improved stereoselectivity.
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Affiliation(s)
- Min Huang
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, Avenue de Terrasse, 91198 Gif-sur-Yvette, France
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50
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Whitfield DM. Plausible transition states for glycosylation reactions. Carbohydr Res 2012; 356:180-90. [DOI: 10.1016/j.carres.2012.03.040] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2012] [Revised: 03/27/2012] [Accepted: 03/30/2012] [Indexed: 11/29/2022]
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