1
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Maikhuri VK, Verma V, Mathur D, Prasad AK, Chaudhary A, Kumar R. Sugars in Multicomponent Reactions: A Toolbox for Diversity-Oriented Synthesis. SYNTHESIS-STUTTGART 2023. [DOI: 10.1055/s-0042-1751418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
AbstractMulticomponent reactions (MCRs) cover strategically employed chemical transformations that incorporate three or more reactants in one pot leading to a functionalized final product. Thus, it is an ideal tool to achieve high levels of complexity, diversity, yields of desired products, atom economy, and reduced reaction times. Sugars belong to the class of naturally occurring compounds with fascinating applications in the field of drug discovery due to the presence of various hydroxy groups and well-defined stereochemistry. However, their potential in MCRs has been realized only recently. This account describes recent advances in the synthesis of sugar-derived heterocycles synthesized by MCRs. We hope to encourage the synthetic and medicinal chemistry community to apply this powerful MCR chemistry to generate novel glycoconjugate challenges.1 Introduction2 Synthesis of Various Functionalized Sugar Compounds2.1 Passerini and Ugi Multicomponent Reactions2.2 Petasis Reaction2.3 Hantzsch Reaction2.4 Domino Ferrier–Povarov Reaction2.5 Marckwald Reaction2.6 Groebke–Blackburn–Bienaymé (GBB) Reaction2.7 Prins–Ritter Reaction2.8 Debus–Radziszewski Imidazole Synthesis Reaction2.9 Mannich Reaction2.10 A3-Coupling Reaction2.11 [3+2]-Cycloaddition Reactions2.12 Miscellaneous Reactions3 Conclusion
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Affiliation(s)
| | - Vineet Verma
- Bioorganic Laboratory, Department of Chemistry, University of Delhi
- Department of Chemistry, Starex University
| | - Divya Mathur
- Bioorganic Laboratory, Department of Chemistry, University of Delhi
- Daulat Ram College, Department of Chemistry, University of Delhi
| | - Ashok K. Prasad
- Bioorganic Laboratory, Department of Chemistry, University of Delhi
| | | | - Rajesh Kumar
- Department of Chemistry, R.D.S. College, B.R.A. Bihar University
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2
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Tsukamoto S, Hlokoane O, Miyako K, Irie R, Sakai R, Oikawa M. Oxa-Michael-based divergent synthesis of artificial glutamate analogs. RSC Adv 2022; 12:22175-22179. [PMID: 36043066 PMCID: PMC9364357 DOI: 10.1039/d2ra03744k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 08/02/2022] [Indexed: 11/24/2022] Open
Abstract
Herein we report stereoselective generation of two skeletons, 1,3-dioxane and tetrahydropyranol, by oxa-Michael reaction as the key reaction from δ-hydroxyenone. The construction of the 1,3-dioxane skeleton, achieved through hemiacetal formation followed by oxa-Michael reaction from δ-hydroxyenone, was exploited to access structurally diverse heterotricyclic artificial glutamate analogs. On the other hand, formation of a novel tetrahydro-2H-pyranol skeleton was accomplished by the inverse reaction order: oxa-Michael reaction followed by hemiacetal formation. Thus, this study succeeded in showing that structural diversity in a compound collection can be acquired by interchanging the order of just two reactions. Among the skeletally diverse, heterotricyclic artificial glutamate analogs synthesized in this study, a neuronally active compound named TKM-50 was discovered in the mice in vivo assay. By interchanging the order of reactions, two types of skeletons were created and a neuroactive artificial glutamate analog was developed.![]()
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Affiliation(s)
- Shuntaro Tsukamoto
- Graduate School of Nanobioscience, Yokohama City University Seto 22-2, Kanazawa-ku Yokohama 236-0027 Japan
| | - Oriel Hlokoane
- Graduate School of Nanobioscience, Yokohama City University Seto 22-2, Kanazawa-ku Yokohama 236-0027 Japan .,Department of Pharmacy, National University of Lesotho P.O. Roma 180 Maseru Lesotho
| | - Kei Miyako
- Faculty of Fisheries Sciences, Hokkaido University Hakodate 041-8611 Japan
| | - Raku Irie
- Graduate School of Nanobioscience, Yokohama City University Seto 22-2, Kanazawa-ku Yokohama 236-0027 Japan
| | - Ryuichi Sakai
- Faculty of Fisheries Sciences, Hokkaido University Hakodate 041-8611 Japan
| | - Masato Oikawa
- Graduate School of Nanobioscience, Yokohama City University Seto 22-2, Kanazawa-ku Yokohama 236-0027 Japan
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3
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Theoretical study of the stereoselectivity in the reaction of 4-haloglutamic acid derivatives with arylamines. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3513-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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4
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Hlokoane O, Tsukamoto S, Irie R, Oikawa M. Stereoselective Formation of cis-Trisubstituted 1,3-Dioxanes. CHEM LETT 2021. [DOI: 10.1246/cl.210241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Oriel Hlokoane
- Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama, Kanagawa 236-0027, Japan
| | - Shuntaro Tsukamoto
- Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama, Kanagawa 236-0027, Japan
| | - Raku Irie
- Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama, Kanagawa 236-0027, Japan
| | - Masato Oikawa
- Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama, Kanagawa 236-0027, Japan
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5
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Morokuma K, Tsukamoto S, Mori K, Miyako K, Sakai R, Irie R, Oikawa M. Menthyl esterification allows chiral resolution for the synthesis of artificial glutamate analogs. Beilstein J Org Chem 2021; 17:540-550. [PMID: 33727977 PMCID: PMC7934734 DOI: 10.3762/bjoc.17.48] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 02/05/2021] [Indexed: 11/23/2022] Open
Abstract
Herein, we report the enantiospecific synthesis of two artificial glutamate analogs designed based on IKM-159, an antagonist selective to the AMPA-type ionotropic glutamate receptor. The synthesis features the chiral resolution of the carboxylic acid intermediate by the esterification with ʟ-menthol, followed by a configurational analysis by NMR, conformational calculation, and X-ray crystallography. A mice in vivo assay showed that (2R)-MC-27, with a six-membered oxacycle, is neuroactive, whereas the (2S)-counterpart is inactive. It was also found that TKM-38, with an eight-membered azacycle, is neuronally inactive, showing that the activity is controlled by the ring C.
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Affiliation(s)
- Kenji Morokuma
- Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Shuntaro Tsukamoto
- Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Kyosuke Mori
- Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Kei Miyako
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Japan
| | - Ryuichi Sakai
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Japan
| | - Raku Irie
- Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Masato Oikawa
- Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan
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6
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Roy S. Prins-Friedel-Crafts Cyclization: Synthesis of Diversely Functionalized Six- Membered Oxacycles. CURR ORG CHEM 2021. [DOI: 10.2174/1385272825666210114105020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Prins cyclization is a well-established synthetic protocol to generate a wide range
of important oxygen heterocycles. It is a cyclization reaction performed by an oxocarbenium
ion that undergoes an intramolecular pi-bond attack to construct a new carbon-carbon bond.
When this cyclization process is conjugated with Friedel-Crafts reaction, it further expands
the synthetic potential by fabricating two different carbon-carbon bonds in one single reaction.
Different acid catalysts mediated the coupled Prins-Friedel-Crafts reaction which is conducted
both in stepwise as well as in tandem fashion. In the stepwise route, three different
reacting components were utilized whereas, the tandem methodology required proper modification
of the initial substrate molecule. An array of allylic, propargylic, other related alkenols,
and carbonyl reactants were employed to carry out the cyclization process. Several oxygenated
heterocycles equipped with diverse functionalities were constructed in a stereoselective manner which again
reinforced the significance of this cyclization protocol undoubtedly. The present mini-review highlights the utilization
of different one-pot stepwise Prins-Friedel-Crafts reactions and the subsequent development of cascade Prins-
Friedel-Crafts cyclization process to furnish intricate molecular architectures of vital six-membered oxacycles.
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Affiliation(s)
- Snigdha Roy
- Department of Chemistry, Banwarilal Bhalotia College, Asansol-713303, West Bengal, India
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7
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Thorat SS, Kontham R. Strategies for the synthesis of furo-pyranones and their application in the total synthesis of related natural products. Org Chem Front 2021. [DOI: 10.1039/d0qo01421d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The furo-pyranone framework is widely present in the molecular structure of various biologically potent natural products and un-natural small molecules, and it represents a valuable target in synthetic organic chemistry and medicinal chemistry.
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Affiliation(s)
- Sagar S. Thorat
- Organic Chemistry Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Ravindar Kontham
- Organic Chemistry Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
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8
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Chen ME, Chen XW, Hu YH, Ye R, Lv JW, Li B, Zhang FM. Recent advances of Ritter reaction and its synthetic applications. Org Chem Front 2021. [DOI: 10.1039/d1qo00496d] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review provides a comprehensive survey of Ritter reactions from 2014 to 2020.
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Affiliation(s)
- Meng-En Chen
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xiao-Wei Chen
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yue-Hong Hu
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Rui Ye
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Jian-Wei Lv
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Baosheng Li
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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9
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Vigorov AY, Krasnov VP, Nizova IA, Sadretdinova LS, Levit GL, Matveeva TV, Slepukhin PA, Bakulin DA, Kovalyov NS, Tyurenkov IN, Charushin VN. Synthesis and Study of Psychotropic Activity of 1-Substituted 4-Amino-5-oxoprolines. DOKLADY CHEMISTRY 2020. [DOI: 10.1134/s0012500820090049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Padmaja P, Reddy PN, Subba Reddy BV. Tandem Prins cyclizations for the construction of oxygen containing heterocycles. Org Biomol Chem 2020; 18:7514-7532. [PMID: 32940271 DOI: 10.1039/d0ob00960a] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Tandem Prins cyclization is a versatile method for the synthesis of fused/bridged/spirotetrahydropyran scaffolds. Therefore, it has become a powerful tool for the stereoselective synthesis of oxygen/nitrogen containing heterocycles. Indeed, previous review articles on Prins spirocyclization illustrate the synthesis of spirotetrahydropyran derivatives and the aza-Prins reaction demonstrates its application in the total synthesis of natural products. The current review is devoted specifically to highlight tandem Prins cyclizations for the construction of fused scaffolds and related frameworks with a particular emphasis on recent applications. The mechanistic aspects and the scope of the methods are briefly discussed herein.
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Affiliation(s)
- P Padmaja
- Fluoro & Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.
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11
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12
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Oikawa M, Tsukamoto S, Morokuma K, Irie R, Ikoma M. Hybrid Strategy of sp<sup>3</sup>-Rich Scaffolds for Neuroactive Agents. J SYN ORG CHEM JPN 2020. [DOI: 10.5059/yukigoseikyokaishi.78.292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Masato Oikawa
- Graduate School of Nanobioscience, Yokohama City University
| | | | - Kenji Morokuma
- Graduate School of Nanobioscience, Yokohama City University
| | - Raku Irie
- Graduate School of Nanobioscience, Yokohama City University
| | - Minoru Ikoma
- Research Division Medicinal Chemistry Laboratory, SCOHIA PHARMA, Inc
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13
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Sidorenko AY, Li‐Zhulanov NS, Mäki‐Arvela P, Sandberg T, Kravtsova AV, Peixoto AF, Freire C, Volcho KP, Salakhutdinov NF, Agabekov VE, Murzin DY. Stereoselectivity Inversion by Water Addition in the −SO
3
H‐catalyzed Tandem Prins‐Ritter Reaction for Synthesis of 4‐amidotetrahydropyran Derivatives. ChemCatChem 2020. [DOI: 10.1002/cctc.202000070] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Alexander Yu. Sidorenko
- Åbo Akademi University Biskopsgatan 8 20500 Turku/Åbo Finland
- Institute of Chemistry of New Materials of National Academy of Sciences of Belarus Skaryna str. 36 220141 Minsk Belarus
| | - Nikolai S. Li‐Zhulanov
- Åbo Akademi University Biskopsgatan 8 20500 Turku/Åbo Finland
- Novosibirsk Institute of Organic Chemistry Lavrentjev av. 9 630090 Novosibirsk Russia
- Novosibirsk State University Pirogova st. 1 630090 Novosibirsk Russia
| | | | - Thomas Sandberg
- Åbo Akademi University Biskopsgatan 8 20500 Turku/Åbo Finland
| | - Anna V. Kravtsova
- Institute of Chemistry of New Materials of National Academy of Sciences of Belarus Skaryna str. 36 220141 Minsk Belarus
| | - Andreia F. Peixoto
- LAQV-REQUIMTE Departamento de Química e Bioquímica Faculdade de Ciências Universidade do Porto Rua do Campo Alegre s/n 4169-007 Porto Portugal
| | - Cristina Freire
- LAQV-REQUIMTE Departamento de Química e Bioquímica Faculdade de Ciências Universidade do Porto Rua do Campo Alegre s/n 4169-007 Porto Portugal
| | - Konstantin P. Volcho
- Novosibirsk Institute of Organic Chemistry Lavrentjev av. 9 630090 Novosibirsk Russia
- Novosibirsk State University Pirogova st. 1 630090 Novosibirsk Russia
| | - Nariman F. Salakhutdinov
- Novosibirsk Institute of Organic Chemistry Lavrentjev av. 9 630090 Novosibirsk Russia
- Novosibirsk State University Pirogova st. 1 630090 Novosibirsk Russia
| | - Vladimir E. Agabekov
- Institute of Chemistry of New Materials of National Academy of Sciences of Belarus Skaryna str. 36 220141 Minsk Belarus
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14
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Fernandes RA. The Potential of β-Hydroxy-γ-vinyl-γ-lactone in the Synthesis of Natural Products and Beyond. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901665] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Rodney A. Fernandes
- Department of Chemistry; Indian Institute of Technology Bombay; Powai 400076 Mumbai Maharashtra India
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15
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Surabhi, Shabir J, Gupta P, Sah D, Mozumdar S. Magnetic core–shell dendritic mesoporous silica nanospheres anchored with diamine as an efficient and recyclable base catalyst. NEW J CHEM 2020. [DOI: 10.1039/d0nj04822d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In the present study, diamine-functionalized magnetic core–shell dendritic mesoporous silica nanospheres have been successfully synthesized by an oil–water biphasic stratification-coating strategy.
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Affiliation(s)
- Surabhi
- Department of Chemistry
- University of Delhi
- India
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16
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Chandrashekhar R, Sridhar B, Reddy BVS. Substrate‐Controlled Aza‐Ene/Prins Cyclization for the Synthesis of Dihydroquinoline and Oxocene Derivatives. ChemistrySelect 2019. [DOI: 10.1002/slct.201900095] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Rapelli Chandrashekhar
- Fluoro & AgrochemicalsLaboratory of X-ray CrystallographyCSIR-Indian Institute of Chemical Technology Hyderabad –500 007 India
- Academy of Scientific and Innovative Research New Delhi 110025
| | - Balasubramanian Sridhar
- Fluoro & AgrochemicalsLaboratory of X-ray CrystallographyCSIR-Indian Institute of Chemical Technology Hyderabad –500 007 India
| | - Basi V. Subba Reddy
- Fluoro & AgrochemicalsLaboratory of X-ray CrystallographyCSIR-Indian Institute of Chemical Technology Hyderabad –500 007 India
- Academy of Scientific and Innovative Research New Delhi 110025
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17
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Segovia C, Fache F, Pelotier B, Piva O. Access to Polyfluorinated Tetrahydropyranyl Amides via Prins‐Ritter Cyclization under Green Conditions. ChemistrySelect 2019. [DOI: 10.1002/slct.201900110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Claire Segovia
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS – INSA Lyon – CPE Lyon, ICBMS UMR 5246Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, Equipe SURCOOF, Bât. Raulin, 43 Bd du 11 Novembre 1918 69622 Villeurbanne Cedex France
| | - Fabienne Fache
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS – INSA Lyon – CPE Lyon, ICBMS UMR 5246Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, Equipe SURCOOF, Bât. Raulin, 43 Bd du 11 Novembre 1918 69622 Villeurbanne Cedex France
| | - Béatrice Pelotier
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS – INSA Lyon – CPE Lyon, ICBMS UMR 5246Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, Equipe SURCOOF, Bât. Raulin, 43 Bd du 11 Novembre 1918 69622 Villeurbanne Cedex France
| | - Olivier Piva
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS – INSA Lyon – CPE Lyon, ICBMS UMR 5246Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, Equipe SURCOOF, Bât. Raulin, 43 Bd du 11 Novembre 1918 69622 Villeurbanne Cedex France
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18
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Subramanian P, Kaliappan KP. Transition-Metal-Free Multicomponent Approach to Stereoenriched Cyclopentyl-isoxazoles through C-C Bond Cleavage. Chem Asian J 2018; 13:2031-2039. [PMID: 29920954 DOI: 10.1002/asia.201800608] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 06/11/2018] [Indexed: 01/01/2023]
Abstract
An efficient multicomponent reaction for the synthesis of stereoenriched cyclopentyl-isoxazoles from camphor-derived α-oximes, alkynes, and MeOH is reported. Our method involved a series of cascade transformations, including the in situ generation of an IIII catalyst, which catalyzed the addition of MeOH to a sterically hindered ketone. Oxidation of the oxime, and rearrangement of the α-hydroxyiminium ion generated a nitrile oxide in situ, which, upon [3+2] cycloaddition reaction with an alkyne, delivered the regioselective product. This reaction was very selective for the syn-oxime. This multicomponent approach was also extended to the synthesis of a new glycoconjugate, camphoric ester-isoxazole C-galactoside.
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Affiliation(s)
- Parthasarathi Subramanian
- Department of Chemistry, Indian Institute of Technology Bombay, Main Gate Road, Powai, Mumbai, 400076, India
| | - Krishna P Kaliappan
- Department of Chemistry, Indian Institute of Technology Bombay, Main Gate Road, Powai, Mumbai, 400076, India
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19
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Ishikawa Y, Oikawa M, Hlokoane O, Itagaki H, Chiba M, Takasaki Y, Noda T, Sakai R, Miyako K. Prins Reaction Using Trioxane for Trisubstituted, cis-Fused Hexahydro-2H-furo[3,2-b]pyran Derivative. HETEROCYCLES 2018. [DOI: 10.3987/com-17-13776] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Hirai T, Shibata K, Niwano Y, Shiozaki M, Hashimoto Y, Morita N, Ban S, Tamura O. Total Synthesis of Neodysiherbaine A via 1,3-Dipolar Cycloaddition of a Chiral Nitrone Template. Org Lett 2017; 19:6320-6323. [PMID: 29155598 DOI: 10.1021/acs.orglett.7b03092] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The total synthesis of neodysiherbaine A was achieved via 1,3-dipolar cycloaddition of a chiral nitrone template with a sugar-derived allyl alcohol in the presence of MgBr2·OEt2. This cycloaddition constructed the C2 and C4 asymmetric centers in a single step. Then reductive cleavage, intramolecular SN2 reaction of the tertiary alcohol, and oxidation of the primary alcohol afforded neodysiherbaine A.
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Affiliation(s)
- Toshihiro Hirai
- Showa Pharmaceutical University , Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Kohki Shibata
- Showa Pharmaceutical University , Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Yohei Niwano
- Showa Pharmaceutical University , Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Masao Shiozaki
- Showa Pharmaceutical University , Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Yoshimitsu Hashimoto
- Showa Pharmaceutical University , Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Nobuyoshi Morita
- Showa Pharmaceutical University , Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Shintaro Ban
- Showa Pharmaceutical University , Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Osamu Tamura
- Showa Pharmaceutical University , Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
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21
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Hazarika N, Sarmah B, Bordoloi M, Phukan P, Baishya G. Diastereoselective synthesis of tetrahydropyrans via Prins–Ritter and Prins–arylthiolation cyclization reactions. Org Biomol Chem 2017; 15:2003-2012. [DOI: 10.1039/c6ob02692c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly diastereoselective Prins–Ritter and Prins-arylthiolation cyclization reactions have been developed for the synthesis of two novel classes of tetrahydropyran derivatives.
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Affiliation(s)
- Nabajyoti Hazarika
- Chemical Science & Technology Division
- CSIR-North East Institute of Science and Technology
- Jorhat-785006
- India
- Department of Chemistry
| | - Barnali Sarmah
- Chemical Science & Technology Division
- CSIR-North East Institute of Science and Technology
- Jorhat-785006
- India
- Department of Chemistry
| | - Manobjyoti Bordoloi
- Chemical Science & Technology Division
- CSIR-North East Institute of Science and Technology
- Jorhat-785006
- India
| | - Prodeep Phukan
- Department of Chemistry
- Gauhati University
- Guwahati-14
- India
| | - Gakul Baishya
- Chemical Science & Technology Division
- CSIR-North East Institute of Science and Technology
- Jorhat-785006
- India
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