1
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Mai-Linde Y, Linker T. Radical Clock Probes to Determine Carbohydrate Radical Stabilities. Org Lett 2020; 22:1525-1529. [PMID: 32009406 DOI: 10.1021/acs.orglett.0c00111] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Carbohydrate radical stabilities in the 1- and 2-position have been determined by a radical clock approach, starting from cyclopropanated sugars with xanthates as precursors. Various hexoses and pentoses afforded 1-deoxy sugars as main products, indicating that anomeric radicals are more stable than radicals in the 2-position. An additional influence of the configurations on radical stabilities has been observed. Our results should be interesting for the understanding of 1,2-radical rearrangements in carbohydrate chemistry and offer an easy access to deoxy-vinyl sugars.
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Affiliation(s)
- Yasemin Mai-Linde
- Department of Chemistry , University of Potsdam , Karl-Liebknecht-Str. 24-25 , 14476 Golm , Germany
| | - Torsten Linker
- Department of Chemistry , University of Potsdam , Karl-Liebknecht-Str. 24-25 , 14476 Golm , Germany
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2
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Chatterjee A, Saha R, Pal P, Mondal S, Chakrabarty K. Effectiveness of the bimetallic catalytic center over the monometallic one for catalyzing the rearrangement of cyclopropanated bicyclic derivatives. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.120907] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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3
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Liu J, Han P, Liao JX, Tu YH, Zhou H, Sun JS. Palladium-Catalyzed Cross-Coupling of 2-Iodoglycals with N-Tosylhydrazones: Access to 2-C-Branched Glycoconjugates and Oxadecalins. J Org Chem 2019; 84:9344-9352. [DOI: 10.1021/acs.joc.9b01056] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jianchao Liu
- The National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Puren Han
- The National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Jin-Xi Liao
- The National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Yuan-Hong Tu
- The National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Huiwen Zhou
- The National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Jian-Song Sun
- The National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
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4
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Chatterjee A, Mondal S, Saha R, Pal P, Chakrabarty K, Das GK. Theoretical Study on the Mechanism of Rearrangement Reactions of Bicyclic Derivatives of Cyclopropane to Monocyclic Derivatives under the Catalysis of Pt-Salt. ACS OMEGA 2018; 3:16165-16174. [PMID: 31458253 PMCID: PMC6643901 DOI: 10.1021/acsomega.8b02344] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 11/20/2018] [Indexed: 06/10/2023]
Abstract
In this paper, the mechanistic studies on the isomerization of hydroxyl and silyl derivatives of bicyclic cyclopropanes under the catalytic action of Zeise's salt have been reported. The catalytic activity of both the monomeric and the dimeric forms of Zeise's salt has been studied by applying the high-level quantum mechanical method. Results from this investigation reveal that the reaction goes favorably under the catalysis of the dimeric form of Zeise's salt. The calculated activation barrier for the catalytic process using Zeise's dimer reveals that the rearrangement occurs with an activation barrier of 19-25 kcal mol-1. Depending on the nature of substituents present on the substrate, formation of various products has been explained. This study also includes the heteronuclear counter part of Zeise's dimer where one of the Pt-metals is replaced by palladium (Pd) and nickel (Ni) successively. The calculated activation barrier using these heteronuclear catalysts is found to be close enough to that calculated for the catalytic pathway using Zeise's dimer.
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5
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Affiliation(s)
- Michael Martin Nielsen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
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6
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Study on the mechanism of isomerization of oxaspirohexane catalyzed by Zeise’s Dimer. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.04.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Barát V, Kasinathan S, Bates RW. Platinum-Catalysed Ring-Opening Isomerisation of Piperidine Cyclopropanes. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201700706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Viktor Barát
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Sivarajan Kasinathan
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Roderick W. Bates
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
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8
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Bokor É, Kun S, Goyard D, Tóth M, Praly JP, Vidal S, Somsák L. C-Glycopyranosyl Arenes and Hetarenes: Synthetic Methods and Bioactivity Focused on Antidiabetic Potential. Chem Rev 2017; 117:1687-1764. [PMID: 28121130 DOI: 10.1021/acs.chemrev.6b00475] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
This Review summarizes close to 500 primary publications and surveys published since 2000 about the syntheses and diverse bioactivities of C-glycopyranosyl (het)arenes. A classification of the preparative routes to these synthetic targets according to methodologies and compound categories is provided. Several of these compounds, regardless of their natural or synthetic origin, display antidiabetic properties due to enzyme inhibition (glycogen phosphorylase, protein tyrosine phosphatase 1B) or by inhibiting renal sodium-dependent glucose cotransporter 2 (SGLT2). The latter class of synthetic inhibitors, very recently approved as antihyperglycemic drugs, opens new perspectives in the pharmacological treatment of type 2 diabetes. Various compounds with the C-glycopyranosyl (het)arene motif were subjected to biological studies displaying among others antioxidant, antiviral, antibiotic, antiadhesive, cytotoxic, and glycoenzyme inhibitory effects.
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Affiliation(s)
- Éva Bokor
- Department of Organic Chemistry, University of Debrecen , P.O. Box 400, Debrecen H-4002, Hungary
| | - Sándor Kun
- Department of Organic Chemistry, University of Debrecen , P.O. Box 400, Debrecen H-4002, Hungary
| | - David Goyard
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, Laboratoire de Chimie Organique 2 - Glycochimie, UMR 5246, Université Claude Bernard Lyon 1 and CNRS , 43 Boulevard du 11 Novembre 1918, Villeurbanne F-69622, France
| | - Marietta Tóth
- Department of Organic Chemistry, University of Debrecen , P.O. Box 400, Debrecen H-4002, Hungary
| | - Jean-Pierre Praly
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, Laboratoire de Chimie Organique 2 - Glycochimie, UMR 5246, Université Claude Bernard Lyon 1 and CNRS , 43 Boulevard du 11 Novembre 1918, Villeurbanne F-69622, France
| | - Sébastien Vidal
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, Laboratoire de Chimie Organique 2 - Glycochimie, UMR 5246, Université Claude Bernard Lyon 1 and CNRS , 43 Boulevard du 11 Novembre 1918, Villeurbanne F-69622, France
| | - László Somsák
- Department of Organic Chemistry, University of Debrecen , P.O. Box 400, Debrecen H-4002, Hungary
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9
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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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10
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Gopalakrishnan B, Mohan S, Parella R, Babu SA. Diastereoselective Pd(II)-Catalyzed sp3 C–H Arylation Followed by Ring Opening of Cyclopropanecarboxamides: Construction of anti β-Acyloxy Carboxamide Derivatives. J Org Chem 2016; 81:8988-9005. [DOI: 10.1021/acs.joc.6b01635] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Bojan Gopalakrishnan
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli
P.O., Sector 81, SAS Nagar, Mohali, Knowledge
City, Punjab 140306, India
| | - Sruthi Mohan
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli
P.O., Sector 81, SAS Nagar, Mohali, Knowledge
City, Punjab 140306, India
| | - Ramarao Parella
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli
P.O., Sector 81, SAS Nagar, Mohali, Knowledge
City, Punjab 140306, India
| | - Srinivasarao Arulananda Babu
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli
P.O., Sector 81, SAS Nagar, Mohali, Knowledge
City, Punjab 140306, India
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11
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Malapit CA, Howell AR. Recent Applications of Oxetanes in the Synthesis of Heterocyclic Compounds. J Org Chem 2015. [DOI: 10.1021/acs.joc.5b01255] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Christian A. Malapit
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Amy R. Howell
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
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12
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Malapit CA, Chitale SM, Thakur MS, Taboada R, Howell AR. Pt-Catalyzed Rearrangement of Oxaspirohexanes to 3-Methylenetetrahydrofurans: Scope and Mechanism. J Org Chem 2015; 80:5196-209. [DOI: 10.1021/acs.joc.5b00604] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christian A. Malapit
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Sampada M. Chitale
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Meena S. Thakur
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Rosa Taboada
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Amy R. Howell
- Department
of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States
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13
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Kinfe HH, Mebrahtu FM, Manana MM, Madumo K, Sokamisa MS. Synthesis of 1,2-cis-2-C-branched aryl-C-glucosides via desulfurization of carbohydrate based hemithioacetals. Beilstein J Org Chem 2015; 11:583-8. [PMID: 26124859 PMCID: PMC4464409 DOI: 10.3762/bjoc.11.64] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 04/15/2015] [Indexed: 11/23/2022] Open
Abstract
1-C and 2-C-branched carbohydrates are present as substructures in a number of biologically important compounds. Although the synthesis of such carbohydrate derivatives is extensively studied, the synthesis of 1,2-cis-2-C-branched C-, S-, and N-glycosides is less explored. In this article a synthetic strategy for the synthesis of 1,2-cis-2-C-branched-aryl-C-glucosides is reported via a hydrogenolytic desulfurization of suitably orientated carbohydrate based hemithioacetals. 1,2-cis-2-Hydroxymethyl and 2-carbaldehyde of aryl-C-glucosides have been synthesized using the current strategy in very good yields. The 2-carbaldehyde-aryl-C-glucosides have been identified as suitable substrates for the stereospecific preparation of 2,3-unsaturated-aryl-C-glycosides (Ferrier products).
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Affiliation(s)
- Henok H Kinfe
- Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park 2006, South Africa
| | - Fanuel M Mebrahtu
- Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park 2006, South Africa
| | - Mandlenkosi M Manana
- Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park 2006, South Africa
| | - Kagiso Madumo
- Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park 2006, South Africa
| | - Mokela S Sokamisa
- Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park 2006, South Africa
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14
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Moore PW, Schuster JK, Hewitt RJ, Stone MRL, Teesdale-Spittle PH, Harvey JE. Divergent synthesis of 2-C-branched pyranosides and oxepines from 1,2-gem-dibromocyclopropyl carbohydrates. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.069] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Wang C, Ma X, Zhang J, Tang Q, Jiao W, Shao H. Methanesulfonic-Acid-Catalysed Ring Opening and Glycosylation of 1,2-(Acetylcyclopropane)-AnnulatedD-Lyxofuranose. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402037] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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16
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Dey S, Jayaraman N. Exclusive ring opening of gem-dihalo-1,2-cyclopropanated oxyglycal to oxepines in AgOAc. Carbohydr Res 2014; 389:66-71. [PMID: 24612864 DOI: 10.1016/j.carres.2014.01.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 01/27/2014] [Accepted: 01/30/2014] [Indexed: 11/29/2022]
Abstract
Treatment of gem-dihalo-1,2-cyclopropanated d-oxyglycal with primary, secondary, and unsaturated alcohols, in the presence of AgOAc, leads to the formation of chloro-oxepines exclusively. Reaction of the resulting 2-chloro-oxepines with excess alcohol in the presence of AgOAc, do not promote further reactions. This result is in contrast to the reactions of d-glucal derived halo-oxepine with alcohols known previously that lead to the formation of furanoses as the major product under similar reaction conditions. Observation of this study consolidates the reactivity differences of gem-dihalo-1,2-cyclopropanated oxyglycals, as compared to gem-dihalo-1,2-cyclopropanated glycals.
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Affiliation(s)
- Supriya Dey
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - N Jayaraman
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India.
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17
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Dharuman S, Vankar YD. N-Halosuccinimide/AgNO3-Efficient Reagent Systems for One-Step Synthesis of 2-Haloglycals from Glycals: Application in the Synthesis of 2C-Branched Sugars via Heck Coupling Reactions. Org Lett 2014; 16:1172-5. [DOI: 10.1021/ol500039s] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Suresh Dharuman
- Department of Chemistry, Indian Institute of Technology, Kanpur 208 016, India
| | - Yashwant D. Vankar
- Department of Chemistry, Indian Institute of Technology, Kanpur 208 016, India
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18
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Ma X, Tang Q, Ke J, Yang X, Zhang J, Shao H. InCl3 Catalyzed Highly Diastereoselective [3 + 2] Cycloaddition of 1,2-Cyclopropanated Sugars with Aldehydes: A Straightforward Synthesis of Persubstituted Bis-Tetrahydrofurans and Perhydrofuro[2,3-b]pyrans. Org Lett 2013; 15:5170-3. [DOI: 10.1021/ol402192f] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaofeng Ma
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China, and University of Chinese Academy of Sciences, China
| | - Qin Tang
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China, and University of Chinese Academy of Sciences, China
| | - Jun Ke
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China, and University of Chinese Academy of Sciences, China
| | - Xinglong Yang
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China, and University of Chinese Academy of Sciences, China
| | - Jichao Zhang
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China, and University of Chinese Academy of Sciences, China
| | - Huawu Shao
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China, and University of Chinese Academy of Sciences, China
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19
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Hou GL, Wen H, Lopata K, Zheng WJ, Kowalski K, Govind N, Wang XB, Xantheas SS. A Combined Gas-Phase Photoelectron Spectroscopic and Theoretical Study of Zeise’s Anion and Its Bromine and Iodine Analogues. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201959] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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20
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Hou GL, Wen H, Lopata K, Zheng WJ, Kowalski K, Govind N, Wang XB, Xantheas SS. A Combined Gas-Phase Photoelectron Spectroscopic and Theoretical Study of Zeise’s Anion and Its Bromine and Iodine Analogues. Angew Chem Int Ed Engl 2012; 51:6356-60. [DOI: 10.1002/anie.201201959] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Indexed: 11/09/2022]
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21
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Daskhan GC, Jayaraman N. Synthesis of 2-Deoxy-2-C-alkyl Glycal and Glycopyranosides from 2-Hydroxy Glycal Ester. J Org Chem 2012; 77:2185-91. [DOI: 10.1021/jo202240f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gour Chand Daskhan
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, India
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22
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Yin J, Linker T. Recent advances in the stereoselective synthesis of carbohydrate 2-C-analogs. Org Biomol Chem 2012; 10:2351-62. [PMID: 22311080 DOI: 10.1039/c2ob06529k] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
C-branched carbohydrates are of current interest for glycochemistry, are widely found in nature and serve as important subunits in many antibiotics, bacterial polysaccharides and macrolides. Among C-functionalized saccharides, 2-C-branched carbohydrates represent challenging structures for synthetic chemists, since in contrast to C-glycosides they are not easily accessible from glycosyl bromides or other simple precursors. In this perspective we want to summarize recent approaches to 2-C-branched carbohydrates over the past fifteen years. The two main strategies are based on ring-opening of 1,2-cyclopropanated carbohydrates by various reagents, as well as radical additions to glycals and further transformations, developed in our group. Both methods are characterized by high stereoselectivities and good yields and give access to a broad variety of functionalized carbohydrate 2-C-analogs.
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Affiliation(s)
- Jian Yin
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Lihu Avenue 1800, 214122 Wuxi, China
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23
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Juaristi E, Bandala Y. Anomeric Effect in Saturated Heterocyclic Ring Systems. ADVANCES IN HETEROCYCLIC CHEMISTRY 2012. [DOI: 10.1016/b978-0-12-396530-1.00002-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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24
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Pimpalpalle TM, Yin J, Linker T. Barton radical reactions of 2-C-branched carbohydrates. Org Biomol Chem 2011; 10:103-9. [PMID: 22027808 DOI: 10.1039/c1ob06370g] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Barton esters have been introduced into the side chain of carbohydrates with high yields in only a few steps from easily available glycals. Their radical reactions afford 2-C-methyl and 2-C-bromomethyl hexoses, pentoses and disaccharides in good yields in analytically pure form. Since the Barton esters have been synthesized by an oxidative radical addition and their transformations by reductive radical processes, our results demonstrate the power of such reactions in carbohydrate chemistry.
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Affiliation(s)
- Tukaram M Pimpalpalle
- Department of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
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25
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Yin BL, Zhang ZR, Xu LW, Jiang H. Highly Facialselective Synthesis of Pyranose 1,3-Oxazines and Their Ring Opening with Nucleophiles: A Novel Entry to 2-C-Branched Glycosides. Org Lett 2011; 13:5088-91. [DOI: 10.1021/ol2019604] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Biao-Lin Yin
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong, 510640, China, and Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, P. R. China
| | - Ze-Ren Zhang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong, 510640, China, and Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, P. R. China
| | - Li-Wen Xu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong, 510640, China, and Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, P. R. China
| | - Huanfeng Jiang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong, 510640, China, and Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, P. R. China
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26
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Yin J, Linker T. Stereoselective diversity-oriented syntheses of functionalized saccharides from bicyclic carbohydrate 1,2-lactones. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.01.069] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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27
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Tian Q, Dong L, Ma X, Xu L, Hu C, Zou W, Shao H. Stereoselective Synthesis of 2-C-Branched (Acetylmethyl) Oligosaccharides and Glycoconjugates: Lewis Acid-Catalyzed Glycosylation from 1,2-Cyclopropaneacetylated Sugars. J Org Chem 2011; 76:1045-53. [DOI: 10.1021/jo1016579] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qiang Tian
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Liang Dong
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaofeng Ma
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Liyan Xu
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Changwei Hu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Wei Zou
- Institute for Biological Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario K1A 0R6, Canada, and Graduate School of Chinese Academy of Sciences, China
| | - Huawu Shao
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
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28
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Kancharla PK, Vankar YD. Chemistry of 2-Nitroglycals: A One-Pot Three-Component Stereoselective Approach toward 2-C-Branched O-Galactosides. J Org Chem 2010; 75:8457-64. [DOI: 10.1021/jo101735u] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pavan K. Kancharla
- Department of Chemistry, Indian Institute of Technology, Kanpur 208 016, India
| | - Yashwant D. Vankar
- Department of Chemistry, Indian Institute of Technology, Kanpur 208 016, India
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29
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Tian Q, Xu L, Ma X, Zou W, Shao H. Stereoselective Synthesis of 2-C-Acetonyl-2-Deoxy-d-Galactosides using 1,2-Cyclopropaneacetylated Sugar as Novel Glycosyl Donor. Org Lett 2009; 12:540-3. [DOI: 10.1021/ol902732w] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Qiang Tian
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China, Institute for Biological Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario K1A 0R6, Canada and Graduate School of Chinese Academy of Sciences, China
| | - Liyan Xu
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China, Institute for Biological Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario K1A 0R6, Canada and Graduate School of Chinese Academy of Sciences, China
| | - Xiaofeng Ma
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China, Institute for Biological Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario K1A 0R6, Canada and Graduate School of Chinese Academy of Sciences, China
| | - Wei Zou
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China, Institute for Biological Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario K1A 0R6, Canada and Graduate School of Chinese Academy of Sciences, China
| | - Huawu Shao
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China, Institute for Biological Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario K1A 0R6, Canada and Graduate School of Chinese Academy of Sciences, China
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30
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Sridhar P, Kumar P, Seshadri K, Satyavathi R. Synthesis of 2-C-Branched Oligo(glyco-amino acid)s (OGAAs) by Ring Opening of 1,2-Cyclopropanecarboxylated Sugar Donors. Chemistry 2009; 15:7526-9. [DOI: 10.1002/chem.200901022] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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31
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Shoemaker KA, Leadbeater NE. A fast and easy approach to the synthesis of Zeise’s salt using microwave heating. INORG CHEM COMMUN 2009. [DOI: 10.1016/j.inoche.2009.02.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Stereodivergent De Novo Synthesis of Branched Amino Sugars by Lewis Acid Promoted Rearrangement of 1,2-Oxazines. Angew Chem Int Ed Engl 2009; 48:3165-9. [DOI: 10.1002/anie.200805724] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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33
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Pfrengle F, Lentz D, Reißig HU. Stereodivergente De-novo-Synthese verzweigter Aminozucker durch Lewis-Säure-induzierte Umlagerung von 1,2-Oxazinen. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200805724] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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34
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Yin J, Sommermann T, Linker T. Convenient syntheses and transformations of 2-C-malonyl carbohydrates. Chemistry 2008; 13:10152-67. [PMID: 17955558 DOI: 10.1002/chem.200701151] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
2-C-malonyl carbohydrates were synthesized in only few steps and high yields by radical additions of malonates to glycals. For the first time, the undesired formation of nitrates was completely suppressed with anhydrous cerium ammonium nitrate (CAN) as oxidizing agent. A coherent explanation for the high stereoselectivities of the additions to gluco-configured glycals was provided by variation of the substituents in the 3-position. We established steric effects for the face selectivity, and electronic effects strongly influence the reactivity of the double bonds. The scope and limitation of transition-metal-mediated radical reactions in the synthesis of 2-C-branched carbohydrates was thoroughly investigated. Thus, unsaturated disaccharides and benzyl-protected glycals were used as substrates for the first time. Finally, the 2-C-malonyl carbohydrates were transformed into various products by decarboxylation, saponification and reduction, which afforded interesting precursors for C-disaccharides. In this paper we describe the syntheses of more than 40 new 2-C-analogues of carbohydrates, which were isolated in high yields in analytically pure form. Therefore, the transition-metal-mediated radical addition of malonates to glycals offers a simple and convenient entry to such important carbohydrate derivatives.
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Affiliation(s)
- Jian Yin
- Department of Chemistry, University of Potsdam, Karl-Liebknecht-Strasse 24-25, 14476 Potsdam, Germany
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35
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Affiliation(s)
- Alexandra E. Hours
- Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215
| | - John K. Snyder
- Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215
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36
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Abstract
Only three steps are required for the selective synthesis of 2-C-branched glyco-acetic acids from glycals by radical addition and decarboxylation.
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Affiliation(s)
- Jian Yin
- Department of Chemistry, University of Potsdam, Karl-Liebknecht Strasse 24-25, D-14476 Potsdam/Golm, Germany
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37
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38
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Shao H, Ekthawatchai S, Chen CS, Wu SH, Zou W. 1,2-migration of 2'-oxoalkyl group and concomitant synthesis of 2-C-branched O-, S-glycosides and glycosyl azides via 1,2-cyclopropanated sugars. J Org Chem 2005; 70:4726-34. [PMID: 15932311 DOI: 10.1021/jo0502854] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Treatment of 2'-oxoalkyl 2-O-Ms(Ts)-alpha-C-mannosides (4, 5, and 6) with base resulted in 1,2-cyclopropanation via an intramolecular SN2 reaction due to their 1,2-trans-diaxial configurations. The 1,2-cyclopropanated sugars (10 and 13) were reacted with various alcohols, thiols, and sodium azide to produce 2-C-branched O- and S-glycosides and glycosyl azides (11, 14-28) in good to excellent yields. In contrast, 1,2-cis 2'-oxoalkyl 2-O-Ms(Ts)-alpha-C-glucoside 9 formed an acyclic conjugated aldehyde (31) under basic conditions, which occurred by 1'-enolation followed by beta-elimination. An intramolecular Michael addition from 31 produced 2-O-Ms-beta-C-glucoside 30 as a major product. However, due to the electron-withdrawing effect exerted by 2-O-Ms compound 31 also undergoes a C2 epimerization to form 32. Thereafter, the intramolecular Michael addition led to the formation of both 1,2-trans 2'-oxoalkyl 2-O-Ms-alpha-C-mannoside 4 and its beta-anomer (33). Because beta-elimination/Michael addition and C2 epimerization are reversible reactions, equilibriums among 9, 31, 30, 32, 33, and 4 were established, which included the transformation of 1,2-cis C-glucoside 9 into 1,2-trans C-mannoside 4. The subsequent 1,2-cyclopropanation of 4 was an irreversible reaction yielding 1,2-cyclopropanated 10 and further conversion to 1,2-migration products (11 and 12).
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Affiliation(s)
- Huawu Shao
- Institute for Biological Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario K1A 0R6, Canada
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39
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40
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He RX, Li M, Li XY. On the regioselective mechanism of novel rearrangements of 1,6-enynes catalyzed by PtCl2: a DFT study. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.theochem.2004.10.067] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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41
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Sagar R, Pant CS, Pathak R, Shaw AK. A substrate controlled, very highly diastereoselective Morita–Baylis–Hillman reaction: a remote activation of the diastereofacial selectivity in the synthesis of C-3-branched deoxysugars. Tetrahedron 2004. [DOI: 10.1016/j.tet.2004.09.086] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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42
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Sridhar PR, Ashalu KC, Chandrasekaran S. Efficient Methodology for the Synthesis of 2-C-Branched Glyco-amino Acids by Ring Opening of 1,2-Cyclopropanecarboxylated Sugars. Org Lett 2004; 6:1777-9. [PMID: 15151412 DOI: 10.1021/ol049467v] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient methodology for the synthesis of 2-C-branched glyco-amino acid derivatives by diastereoselective ring opening of 1,2-cyclopropanecarboxylated sugars in good yields is reported. [reaction--see text]
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Affiliation(s)
- Perali Ramu Sridhar
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, India
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43
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Reissig HU, Zimmer R. Donor-acceptor-substituted cyclopropane derivatives and their application in organic synthesis. Chem Rev 2003; 103:1151-96. [PMID: 12683780 DOI: 10.1021/cr010016n] [Citation(s) in RCA: 1263] [Impact Index Per Article: 60.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hans-Ulrich Reissig
- Institut für Chemie-Organische Chemie, Freie Universität Berlin, Takustrasse 3, D-14195 Berlin, Germany
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44
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Shanmugasundaram B, Varghese B, Balasubramanian KK. Stereoselective synthesis of a C-glycosylic compound (a "methyl C-glycoside") through a regioselective free-radical ring-opening reaction. A single-crystal X-ray structure determination. Carbohydr Res 2002; 337:1523-27. [PMID: 12350320 DOI: 10.1016/s0008-6215(02)00137-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Readily available 3,4,6-tri-O-acetyl-D-glucal was converted to 2,6-anhydro-5,7-O-benzylidene-1,3,4-trideoxy-D-arabino-hept-3-enitol, a methyl C-glycosylic compound. Cyclopropanation of 4,6-O-benzylidene-D-glucal, followed by tributylstannyl radical-mediated regioselective ring opening of the 1,2-cyclopropano sugar led to a 2,6-anhydro-1-deoxyheptose, (a "methyl C-beta-D-glycoside"). The stereochemistry of the 1,2-cyclopropano sugar and the "methyl C-glycoside" were confirmed by single-crystal X-ray diffraction studies.
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45
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Méndez M, Muñoz MP, Nevado C, Cárdenas DJ, Echavarren AM. Cyclizations of enynes catalyzed by PtCl2 or other transition metal chlorides: divergent reaction pathways. J Am Chem Soc 2001; 123:10511-20. [PMID: 11673982 DOI: 10.1021/ja0112184] [Citation(s) in RCA: 279] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
1-en-6-ynes react with alcohols or water in the presence of PtCl2 as catalyst to give carbocycles with alkoxy or hydroxy functional groups at the side chain. The reaction proceeds by anti attack of the alkene onto the (eta2-alkyne)platinum complex. The formation of the C-C and C-O bonds takes place stereoselectively by trans addition of the electrophile derived from the alkyne and the nucleophile to the double bond of the enyne. Formation of five- or six-membered carbo- or heterocycles could be obtained from 1-en-6-ynes depending on the substituents on the alkene or at the tether. Although more limited in scope, Ru(II) and Au(III) chlorides also give rise to alkoxy- or hydroxycyclization of enynes. On the basis of density functional theory (DFT) calculations, a cyclopropyl platinacarbene complex was found as the key intermediate in the process. In the presence of polar, nonnucleophilic solvents, 1-en-6-ynes are cycloisomerized with PtCl2 as catalyst. Formation of a platinacyclopentene intermediate is supported by DFT calculations. The reaction takes place by selective hydrogen abstraction of the trans-allylic substituent. Cycloisomerization of enynes containing disubstituted alkenes could be carried out using RuCl3 or Ru(AsPh3)4Cl2 in MeOH.
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Affiliation(s)
- M Méndez
- Departamento de Química Orgánica, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
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46
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Yu M, Lynch V, Pagenkopf BL. Intramolecular cyclopropanation of glycals: studies toward the synthesis of canadensolide, sporothriolide, and xylobovide. Org Lett 2001; 3:2563-6. [PMID: 11483061 DOI: 10.1021/ol016239h] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] The first examples of copper-catalyzed intramolecular cyclopropanations of glycal-derived diazoacetates are reported. The new cyclopropanes are converted into advanced intermediates for the synthesis of bislactone natural products. Synthetic highlights include the selective monodeprotection of a di-tert-butylsilylene ether and a zinc-mediated ring opening cascade reaction.
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Affiliation(s)
- M Yu
- Department of Chemistry and Biochemistry, The University of Texas at Austin, 78712, USA
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