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Dhar A, Siva Kumar N, Khimani M, Al-Fatesh AS, Ibrahim AA, Fakeeha AH, Patel H, Vekariya RL. Silica-immobilized ionic liquid Brønsted acids as highly effective heterogeneous catalysts for the isomerization of n-heptane and n-octane. RSC Adv 2020; 10:15282-15292. [PMID: 35495467 PMCID: PMC9052301 DOI: 10.1039/d0ra00556h] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 04/09/2020] [Indexed: 12/02/2022] Open
Abstract
Metal-free imidazolium-based ionic liquid (IL) Brønsted acids 1-methyl imidazolium hydrogen sulphate [HMIM]HSO4 and 1-methyl benzimidazolium hydrogen sulphate [HMBIM]HSO4 were synthesized. Their physicochemical properties were investigated using spectroscopic and thermal techniques, including UV-Vis, FT-IR, 1H NMR, 13C-NMR, mass spectrometry, and TGA. The ILs were immobilized on mesoporous silica gel and characterized by FT-IR spectroscopy, scanning electron microscopy, Brunauer–Emmett–Teller analysis, ammonia temperature-programmed desorption, and thermogravimetric analysis. [HMIM]HSO4@silica and [HMBIM]HSO4@silica have been successfully applied as promising replacements for conventional catalysts for alkane isomerization reactions at room temperature. Isomerization of n-heptane and n-octane was achieved with both catalysts. In addition to promoting the isomerization of n-heptane and n-octane (a quintessential reaction for petroleum refineries), these immobilized catalysts are non-hazardous and save energy. Metal-free imidazolium-based ionic liquid (IL) Brønsted acids 1-methyl imidazolium hydrogen sulphate [HMIM]HSO4 and 1-methyl benzimidazolium hydrogen sulphate [HMBIM]HSO4 were synthesized.![]()
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Affiliation(s)
- Abhishek Dhar
- Department of Chemistry
- Modern Institute of Engineering and Technology
- Hooghly
- India
| | - Nadavala Siva Kumar
- Department of Chemical Engineering
- King Saud University
- Riyadh 11421
- Saudi Arabia
| | - Mehul Khimani
- School of Sciences
- P P Savani University
- Surat 394125
- India
| | - Ahmed S. Al-Fatesh
- Department of Chemical Engineering
- King Saud University
- Riyadh 11421
- Saudi Arabia
| | - Ahmed A. Ibrahim
- Department of Chemical Engineering
- King Saud University
- Riyadh 11421
- Saudi Arabia
| | - Anis H. Fakeeha
- Department of Chemical Engineering
- King Saud University
- Riyadh 11421
- Saudi Arabia
| | - Hiren Patel
- School of Sciences
- P P Savani University
- Surat 394125
- India
| | - Rohit L. Vekariya
- Department for Management of Science and Technology Development
- Ton Duc Thang University
- Ho Chi Minh City
- Vietnam
- Faculty of Applied Sciences
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Mukherjee MM, Basu N, Nandi S, Ghosh R. A metal free mild and green approach for tandem opening of 4,6-O-benzylidene acetals to their corresponding 6-O-acetyl derivatives: Application in the synthesis of a trisaccharide using one-pot glycosylation reactions. Carbohydr Res 2019; 476:36-43. [PMID: 30889504 DOI: 10.1016/j.carres.2019.03.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 03/04/2019] [Accepted: 03/04/2019] [Indexed: 10/27/2022]
Abstract
An efficient and high yielding reaction for tandem opening of 4,6-O-benzylidene derivatives (gluco, galacto, manno, 2-phthalimido-2-deoxy glucosides) to their corresponding 6-O-acetyl derivatives has been established under metal free condition using 60% solution of aqueous acetic acid (v/v). The reaction is equally pertinent for large scale synthesis and also for disaccharide glycosides. Its application for the construction of a building block towards synthesis of a trisaccharide part related to Pseudomonas aeruginosa utilizing one-pot glycosylation reactions has also been described.
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Affiliation(s)
- Mana Mohan Mukherjee
- Department of Chemistry, Jadavpur University, Jadavpur, Kolkata, 700032, West Bengal, India
| | - Nabamita Basu
- Department of Chemistry, Nabagram Hiralal Paul College, Konnagar, Hoogly, West Bengal, 712246, India
| | - Shantanu Nandi
- Department of Chemistry, Jadavpur University, Jadavpur, Kolkata, 700032, West Bengal, India
| | - Rina Ghosh
- Department of Chemistry, Jadavpur University, Jadavpur, Kolkata, 700032, West Bengal, India.
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Janssens J, Risseeuw MDP, Van der Eycken J, Van Calenbergh S. Regioselective Ring Opening of 1,3-Dioxane-Type Acetals in Carbohydrates. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801245] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jonas Janssens
- Laboratory for Medicinal Chemistry; Department of Pharmaceutics (FFW); Ghent University; Ottergemsesteenweg 460 9000 Ghent Belgium
- Laboratory for Organic and Bioorganic Synthesis; Department of Organic and Macromolecular Chemistry; Ghent University; Krijgslaan 281 (S4) 9000 Ghent Belgium
| | - Martijn D. P. Risseeuw
- Laboratory for Medicinal Chemistry; Department of Pharmaceutics (FFW); Ghent University; Ottergemsesteenweg 460 9000 Ghent Belgium
| | - Johan Van der Eycken
- Laboratory for Organic and Bioorganic Synthesis; Department of Organic and Macromolecular Chemistry; Ghent University; Krijgslaan 281 (S4) 9000 Ghent Belgium
| | - Serge Van Calenbergh
- Laboratory for Medicinal Chemistry; Department of Pharmaceutics (FFW); Ghent University; Ottergemsesteenweg 460 9000 Ghent Belgium
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Affiliation(s)
- Michael Martin Nielsen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
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Kulkarni SS, Wang CC, Sabbavarapu NM, Podilapu AR, Liao PH, Hung SC. "One-Pot" Protection, Glycosylation, and Protection-Glycosylation Strategies of Carbohydrates. Chem Rev 2018; 118:8025-8104. [PMID: 29870239 DOI: 10.1021/acs.chemrev.8b00036] [Citation(s) in RCA: 197] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Carbohydrates, which are ubiquitously distributed throughout the three domains of life, play significant roles in a variety of vital biological processes. Access to unique and homogeneous carbohydrate materials is important to understand their physical properties, biological functions, and disease-related features. It is difficult to isolate carbohydrates in acceptable purity and amounts from natural sources. Therefore, complex saccharides with well-defined structures are often most conviently accessed through chemical syntheses. Two major hurdles, regioselective protection and stereoselective glycosylation, are faced by carbohydrate chemists in synthesizing these highly complicated molecules. Over the past few years, there has been a radical change in tackling these problems and speeding up the synthesis of oligosaccharides. This is largely due to the development of one-pot protection, one-pot glycosylation, and one-pot protection-glycosylation protocols and streamlined approaches to orthogonally protected building blocks, including those from rare sugars, that can be used in glycan coupling. In addition, new automated strategies for oligosaccharide syntheses have been reported not only for program-controlled assembly on solid support but also by the stepwise glycosylation in solution phase. As a result, various sugar molecules with highly complex, large structures could be successfully synthesized. To summarize these recent advances, this review describes the methodologies for one-pot protection and their one-pot glycosylation into the complex glycans and the chronological developments associated with automated syntheses of oligosaccharides.
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Affiliation(s)
- Suvarn S Kulkarni
- Department of Chemistry , Indian Institute of Technology Bombay , Mumbai 400076 , India
| | | | | | - Ananda Rao Podilapu
- Department of Chemistry , Indian Institute of Technology Bombay , Mumbai 400076 , India
| | - Pin-Hsuan Liao
- Institute of Chemistry , Academia Sinica , Taipei 115 , Taiwan
| | - Shang-Cheng Hung
- Genomics Research Center , Academia Sinica , Taipei 115 , Taiwan
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Hasty SJ, Bandara MD, Rath NP, Demchenko AV. S-Benzimidazolyl (SBiz) Imidates as a Platform for Oligosaccharide Synthesis via Active-Latent, Armed-Disarmed, Selective, and Orthogonal Activations. J Org Chem 2017; 82:1904-1911. [PMID: 28135419 PMCID: PMC5498158 DOI: 10.1021/acs.joc.6b02478] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This article describes the development of S-benzimidazolyl (SBiz) imidates as versatile building blocks for oligosaccharide synthesis. The SBiz imidates have been originally developed as a new platform for active-latent glycosylations. This article expands upon the utility of these compounds. The application to practically all common concepts for the expeditious oligosaccharide synthesis including selective, chemoselective, and orthogonal strategies is demonstrated. The strategy development was made possible thanks to our enhanced understanding of the reaction mechanism and the modes by which SBiz imidates interact with various promoters of glycosylation.
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Affiliation(s)
- Scott J. Hasty
- Department of Chemistry and Biochemistry, University of Missouri—St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
| | - Mithila D. Bandara
- Department of Chemistry and Biochemistry, University of Missouri—St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
| | - Nigam P. Rath
- Department of Chemistry and Biochemistry, University of Missouri—St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
| | - Alexei V. Demchenko
- Department of Chemistry and Biochemistry, University of Missouri—St. Louis, One University Boulevard, St. Louis, Missouri 63121, United States
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Illyés TZ, Balla S, Bényei A, Kumar AA, Timári I, Kövér KE, Szilágyi L. Exploring the Syntheses of Novel Glycomimetics. Carbohydrate Derivatives with Se-S
- or Se-Se
- Glycosidic Linkages. ChemistrySelect 2016. [DOI: 10.1002/slct.201600628] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tünde-Zita Illyés
- Department of Organic Chemistry; University of Debrecen; H-4002 Debrecen Pf.400. Hungary
| | - Sára Balla
- Department of Organic Chemistry; University of Debrecen; H-4002 Debrecen Pf.400. Hungary
| | - Attila Bényei
- Department of Pharmaceutical Chemistry; University of Debrecen; H-4002 Debrecen Pf.400 Hungary
| | - Ambati Ashok Kumar
- Department of Organic Chemistry; University of Debrecen; H-4002 Debrecen Pf.400. Hungary
- Department of Inorganic and Analytical Chemistry; University of Debrecen; H-4002 Debrecen Pf.400 Hungary
| | - István Timári
- Department of Inorganic and Analytical Chemistry; University of Debrecen; H-4002 Debrecen Pf.400 Hungary
| | - Katalin E. Kövér
- Department of Inorganic and Analytical Chemistry; University of Debrecen; H-4002 Debrecen Pf.400 Hungary
| | - László Szilágyi
- Department of Organic Chemistry; University of Debrecen; H-4002 Debrecen Pf.400. Hungary
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Saikam V, Dara S, Yadav M, Singh PP, Vishwakarma RA. Dimethyltin Dichloride Catalyzed Regioselective Alkylation of cis-1,2-Diols at Room Temperature. J Org Chem 2015; 80:11916-25. [DOI: 10.1021/acs.joc.5b01898] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Varma Saikam
- Medicinal
Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180
001, India
- Academy of Scientific and Innovative Research, Jammu 180001, India
| | - Saidulu Dara
- Medicinal
Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180
001, India
- Academy of Scientific and Innovative Research, Jammu 180001, India
| | - Mahipal Yadav
- Medicinal
Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180
001, India
| | - Parvinder Pal Singh
- Medicinal
Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180
001, India
- Academy of Scientific and Innovative Research, Jammu 180001, India
| | - Ram A. Vishwakarma
- Medicinal
Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu 180
001, India
- Academy of Scientific and Innovative Research, Jammu 180001, India
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Kaur M, Sharma S, Bedi PM. Silica supported Brönsted acids as catalyst in organic transformations: A comprehensive review. CHINESE JOURNAL OF CATALYSIS 2015. [DOI: 10.1016/s1872-2067(14)60299-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Zulueta MML, Janreddy D, Hung SC. One-Pot Methods for the Protection and Assembly of Sugars. Isr J Chem 2015. [DOI: 10.1002/ijch.201400171] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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