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Mossine VV, Mawhinney TP. 1-Amino-1-deoxy-d-fructose ("fructosamine") and its derivatives. Adv Carbohydr Chem Biochem 2023; 83:27-132. [PMID: 37968038 DOI: 10.1016/bs.accb.2023.10.002] [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] [Indexed: 11/17/2023]
Abstract
Fructosamine has long been considered as a key intermediate of the Maillard reaction, which to a large extent is responsible for specific aroma, taste, and color formation in thermally processed or dehydrated foods. Since the 1980s, however, as a product of the Amadori rearrangement reaction between glucose and biologically significant amines such as proteins, fructosamine has experienced a boom in biomedical research, mainly due to its relevance to pathologies in diabetes and aging. In this chapter, we assess the scope of the knowledge on and applications of fructosamine-related molecules in chemistry, food, and health sciences, as reflected mostly in publications within the past decade. Methods of fructosamine synthesis and analysis, its chemical, and biological properties, and degradation reactions, together with fructosamine-modifying and -recognizing proteins are surveyed.
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Affiliation(s)
- Valeri V Mossine
- Department of Biochemistry, University of Missouri, Columbia, MO, United States
| | - Thomas P Mawhinney
- Department of Biochemistry, University of Missouri, Columbia, MO, United States.
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2
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Castro KADF, Westrup KCM, Silva S, Pereira PMR, Simões MMQ, Neves MDGPMS, Cavaleiro JAS, Tomé JPC, Nakagaki S. Iron(III) Complexation with Galactodendritic Porphyrin Species and Hydrocarbons’ Oxidative Transformations. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kelly A. D. F. Castro
- Laboratório de Química Bioinorgânica e Catálise Universidade Federal do Paraná (UFPR) CP 19061, CEP 81531-980 Curitiba Paraná Brazil
- LAQV-REQUIMTE Department of Chemistry University of Aveiro 3810-193 Aveiro Portugal
| | - Kátia C. M. Westrup
- Laboratório de Química Bioinorgânica e Catálise Universidade Federal do Paraná (UFPR) CP 19061, CEP 81531-980 Curitiba Paraná Brazil
| | - Sandrina Silva
- LAQV-REQUIMTE Department of Chemistry University of Aveiro 3810-193 Aveiro Portugal
| | | | - Mário M. Q. Simões
- LAQV-REQUIMTE Department of Chemistry University of Aveiro 3810-193 Aveiro Portugal
| | | | - José A. S. Cavaleiro
- LAQV-REQUIMTE Department of Chemistry University of Aveiro 3810-193 Aveiro Portugal
| | - João P. C. Tomé
- Centro de Química Estrutural Instituto Superior Técnico Departamento de Química Universidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Shirley Nakagaki
- Laboratório de Química Bioinorgânica e Catálise Universidade Federal do Paraná (UFPR) CP 19061, CEP 81531-980 Curitiba Paraná Brazil
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3
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Sivaiah A, Nag R, Pulla Rao C. Glyco‐Conjugate Design and Demonstration as Receptors for the Species of Biological, Ecological and Medical Importance: Support from Spectroscopy and Microscopy. ChemistrySelect 2021. [DOI: 10.1002/slct.202004157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Areti Sivaiah
- Department of chemistry Vellore Institute of Technology-Andhra Pradesh (VIT-AP) University, Inavolu, Amaravati, Guntur Andhra Pradesh 522237 India
| | - Rahul Nag
- Department of Chemistry Indian Institute of Technology Tirupati, Settipalli (Post),Tirupati−517506 Andhra Pradesh India
| | - Chebrolu Pulla Rao
- Department of Chemistry Indian Institute of Technology Tirupati, Settipalli (Post),Tirupati−517506 Andhra Pradesh India
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Madduluri VK, Sah AK. Metal complexes of 4,6-O-ethylidene-β-d-glucopyranosylamine derivatives and their application in organic synthesis. Carbohydr Res 2019; 485:107798. [PMID: 31513976 DOI: 10.1016/j.carres.2019.107798] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/02/2019] [Accepted: 09/03/2019] [Indexed: 11/17/2022]
Abstract
Glycosylamine derivatives of 4,6-O-ethylidene-d-glucose have been used for complexing the alkali, alkaline earth and transition metal ions. Three different series of ligands have been reported where N-(o-carboxyphenyl)-4,6-O-ethylidene-β-d-glucopyranosylamine has been used for complexing the diamagnetic (Li+, Na+, K+, Mg2+, Ca2+, Ba2+, Zn2+, Cd2+, Hg2+) metal ions. N-(2-Hydroxybenzoyl)-L-alanyl-4,6-O-ethylidene-β-d-glucopyranosylamine selectively interacts with molecular cupric acetate and the adduct acts as a catalyst in selective oxidation of primary and secondary alcohols into their corresponding carbonyl compounds. Salicylidene derivatives of 4,6-O-ethylidene-β-d-glucopyranosylamine have been used in complexing Ni2+, Cu2+, Zn2+, VO2+, MoO22+ and UO22+ metal ions, where Cu(II) and Mo(VI) complexes have been further used in the organic synthesis. Dinuclear copper complex exhibited catecholase like activity and also catalyzed the oxidation of primary and secondary alcohols selectively into their corresponding carbonyl compounds. Trinuclear copper complex has been reported to activate the C-Cl bond of solvent chloroform in the presence of mild organic bases below room temperature. Mo(VI) complex has been used as a catalyst for epoxidation, organic sulfide oxidation and synthesis of bis(indolyl)methanes.
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Affiliation(s)
- Vimal Kumar Madduluri
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Pilani Campus, Rajasthan, 333031, India
| | - Ajay K Sah
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Pilani Campus, Rajasthan, 333031, India.
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5
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Mohammadnezhad G, Akintola O, Buchholz A, Görls H, Plass W. Probing the chirality of oxidovanadium( v) centers in complexes with tridentate sugar Schiff-base ligands: solid-state and solution behavior. NEW J CHEM 2019. [DOI: 10.1039/c9nj02881a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Configurations of oxidovanadium centers in diastereomeric complexes with chiral sugar ligands are assigned and in the solid state triggered by the coordination number at the vanadium center through the steric requirements of the chelate ligand.
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Affiliation(s)
| | - Oluseun Akintola
- Institut für Anorganische und Analytische Chemie
- Friedrich-Schiller-Universität, Jena
- 07743 Jena
- Germany
| | - Axel Buchholz
- Institut für Anorganische und Analytische Chemie
- Friedrich-Schiller-Universität, Jena
- 07743 Jena
- Germany
| | - Helmar Görls
- Institut für Anorganische und Analytische Chemie
- Friedrich-Schiller-Universität, Jena
- 07743 Jena
- Germany
| | - Winfried Plass
- Institut für Anorganische und Analytische Chemie
- Friedrich-Schiller-Universität, Jena
- 07743 Jena
- Germany
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Striegler S, Pickens JB. Discrimination of chiral copper(ii) complexes upon binding of galactonoamidine ligands. Dalton Trans 2016; 45:15203-15210. [DOI: 10.1039/c6dt02153k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Chiral binuclear Cu(ii) complexes are differentiated upon binding top-methylbenzyl-d-galactonoamidine. A sequential binding model is elaborated reflecting the altered coordination sites.
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Affiliation(s)
- Susanne Striegler
- University of Arkansas
- Department of Chemistry and Biochemistry
- Fayetteville
- USA
| | - Jessica B. Pickens
- University of Arkansas
- Department of Chemistry and Biochemistry
- Fayetteville
- USA
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Mohammadnezhad G, Debel R, Plass W. Molybdenum(VI)-promoted sulfoxidation in the presence of tridentate sugar-based Schiff-base ligands. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2015.09.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Transition-Metal-Catalyzed Transformation of Monosaccharides and Polysaccharides. POLYSACCHARIDES 2014. [DOI: 10.1007/978-3-319-03751-6_76-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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9
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Mohammadnezhad G, Böhme M, Geibig D, Burkhardt A, Görls H, Plass W. Chiral vanadium(v) complexes with 2-aminoglucose Schiff-base ligands and their solution configurations: synthesis, structures, and DFT calculations. Dalton Trans 2013; 42:11812-23. [DOI: 10.1039/c3dt50890k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Plass W. Chiral and supramolecular model complexes for vanadium haloperoxidases: Host–guest systems and hydrogen bonding relays for vanadate species. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2011.04.014] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Bera M, Patra A. Study of potential binding of biologically important sugars with a dinuclear cobalt(II) complex. Carbohydr Res 2011; 346:733-8. [DOI: 10.1016/j.carres.2011.02.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Revised: 02/07/2011] [Accepted: 02/08/2011] [Indexed: 11/26/2022]
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12
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Janowski V, Severin K. Carbohydrate sensing with a metal-based indicator displacement assay. Chem Commun (Camb) 2011; 47:8521-3. [DOI: 10.1039/c1cc12232k] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Shibata T, Hashimoto H, Kinoshita I, Yano S, Nishioka T. Unprecedented diastereoselective generation of chiral-at-metal, half sandwich Ir(iii) and Rh(iii) complexes via anomeric isomerism on “sugar-coated” N-heterocyclic carbene ligands. Dalton Trans 2011; 40:4826-9. [DOI: 10.1039/c0dt01634a] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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14
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Nagarajan S, Kumbhar A, Varghese B, Das TM. Structural and DNA cleavage of sugar-derived Schiff base ligands and their dinuclear Cu(II) complexes. Carbohydr Res 2010; 345:1077-83. [DOI: 10.1016/j.carres.2010.01.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2009] [Revised: 01/13/2010] [Accepted: 01/20/2010] [Indexed: 10/19/2022]
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15
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Vetter C, Pornsuriyasak P, Schmidt J, Rath NP, Rüffer T, Demchenko AV, Steinborn D. Synthesis, characterization and reactivity of carbohydrate platinum(IV) complexes with thioglycoside ligands. Dalton Trans 2010; 39:6327-38. [PMID: 20517543 DOI: 10.1039/b927058b] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reactions of fac-[PtMe3(4,4'-R2bpy)(Me2CO)][BF4] (R = H, 1a; tBu, 1b) and fac-[PtMe3(OAc-kappa2O,O')(Me2CO)] (2), respectively, with thioglycosides containing thioethyl (ch-SEt) and thioimidate (ch-STaz, Taz = thiazoline-2-yl) anomeric groups led to the formation of the carbohydrate platinum(IV) complexes fac-[PtMe3(4,4-R2bpy)(ch*)][BF4] (ch* = ch-SEt, 8-14; ch-STaz, 15-23) and fac-[PtMe3(OAc-kappa2O,O')(ch*)] (ch* = ch-SEt, 24-28; ch-STaz = 29-35), respectively. NMR (1H, 13C, 195Pt) spectroscopic investigations and a single-crystal X-ray diffraction analysis of 19 (ch-STaz = 2-thiazolinyl 2,3,4,6-tetra-O-benzoyl-1-thio-beta-D-galactopyranose) revealed the S coordination of the ch-SEt glycosides and the N coordination of the ch-STaz glycosides. Furthermore, X-ray structure analyses of the two decomposition products fac-[PtMe3(bpy)(STazH-kappaS)][BF4] (21a) and 1,6-anhydro-2,3,4-tri-O-benzoyl-beta-D-glucopyranose (23a), where a cleavage of the anomeric C-S bond had occurred in both cases, gave rise to the assumption that this decomposition was mediated due to coordination of the thioglycosides to the high electrophilic platinum(IV) atom, in non-strictly dried solutions. Reactions of fac-[PtMe3(Me2CO)3][BF4] (3) with ch-SEt as well as with ch-SPT and ch-Sbpy thioglycosides (PT = 4-(pyridine-2-yl)-thiazole-2-yl; bpy = 2,2'-bipyridine-6-yl), having N,S and N,N heteroaryl anomeric groups, respectively, led to the formation of platinum(IV) complexes of the type fac-[PtMe3(ch*)][BF4] (ch* = ch-SEt, 36-40, ch-SPT 42-44, ch-Sbpy 45, 46). The thioglycosides were found to be coordinated in a tridentate kappaS,kappa2O,O, kappaS,kappaN,kappaO and kappaS,kappa2N,N coordination mode, respectively. Analogous reactions with ch-STaz ligands succeeded for 2-thiazolinyl 2,3,4-tri-O-benzyl-6-O-(2,2'-bipyridine-6-yl)-1-thio-beta-D-glucopyranoside (5h) resulting in fac-[PtMe3(ch-STaz)][BF4] (41, ch-STaz = 5h), having a kappa3N,N',N''coordinated thioglycoside ligand.
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Affiliation(s)
- Cornelia Vetter
- Institut für Chemie - Anorganische Chemie, Martin-Luther-Universität Halle-Wittenberg, D-06120, Halle, Kurt-Mothes-Strasse 2, Germany
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Norkus E, GrincienĖ G, Vuorinen T, Butkus E, Vaitkus R. Stability of a Dinuclear Cu(II)–β-Cyclodextrin Complex. Supramol Chem 2010. [DOI: 10.1080/1061027031000124561] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Eugenijus Norkus
- b Helsinki University of Technology, Department of Forest Products Technology , Vuorimiehentie 1, FIN-02150, Espoo, Finland
| | - GiedrĖ GrincienĖ
- a Institute of Chemistry, Laboratory of Catalysis , A. Goštauto 9, LT-2600, Vilnius, Lithuania
| | - Tapani Vuorinen
- b Helsinki University of Technology, Department of Forest Products Technology , Vuorimiehentie 1, FIN-02150, Espoo, Finland
| | - Eugenijus Butkus
- c Vilnius University, Faculty of Chemistry , Naugarduko 24, LT-2006, Vilnius, Lithuania
| | - Rimantas Vaitkus
- d Vilnius Pedagogical University , Studentų 39, LT-2034, Vilnius, Lithuania
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18
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Hricovíniová Z. The influence of microwave irradiation on stereospecific Mo(VI)-catalyzed transformation of deoxysugars. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.05.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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19
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20
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Baran EJ. Oxovanadium(IV) complexes of carbohydrates: A brief overview. J Inorg Biochem 2009; 103:547-53. [DOI: 10.1016/j.jinorgbio.2008.10.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2008] [Revised: 09/29/2008] [Accepted: 10/03/2008] [Indexed: 10/21/2022]
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21
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Chiral oxovanadium(V) complexes with a 6-amino-6-deoxyglucopyranoside-based Schiff-base ligand: Catalytic asymmetric sulfoxidation and structural characterization. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.molcata.2008.10.005] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Liu P, Shi JC, Tong Q, Feng Y, Huang H, Jia L. Synthesis and characterization of a chiral Schiff base containing α-d-altropyranoside unit and its zinc(II) complex. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.03.113] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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23
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Burkhardt A, Spielberg E, Simon S, Görls H, Buchholz A, Plass W. Hydrogen Bonds as Structural Directive towards Unusual Polynuclear Complexes: Synthesis, Structure, and Magnetic Properties of Copper(II) and Nickel(II) Complexes with a 2-Aminoglucose Ligand. Chemistry 2008; 15:1261-71. [DOI: 10.1002/chem.200800670] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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24
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Burkhardt A, Görls H, Plass W. Nickel(II) complexes with Schiff-base ligands derived from epimeric pyranose backbones as 2,3-chelators: modeling the coordination chemistry of chitosan. Carbohydr Res 2008; 343:1266-77. [DOI: 10.1016/j.carres.2008.01.039] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2007] [Revised: 01/19/2008] [Accepted: 01/28/2008] [Indexed: 11/29/2022]
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25
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Burkhardt A, Spielberg ET, Görls H, Plass W. Chiral Tetranuclear μ3-Alkoxo-Bridged Copper(II) Complex with 2 + 4 Cubane-Like Cu4O4 Core Framework and Ferromagnetic Ground State. Inorg Chem 2008; 47:2485-93. [DOI: 10.1021/ic701777t] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anja Burkhardt
- Institut für Anorganische und Analytische Chemie, Friedrich-Schiller-Universität Jena, Carl-Zeiss-Promenade 10, 07745 Jena, Germany
| | - Eike T. Spielberg
- Institut für Anorganische und Analytische Chemie, Friedrich-Schiller-Universität Jena, Carl-Zeiss-Promenade 10, 07745 Jena, Germany
| | - Helmar Görls
- Institut für Anorganische und Analytische Chemie, Friedrich-Schiller-Universität Jena, Carl-Zeiss-Promenade 10, 07745 Jena, Germany
| | - Winfried Plass
- Institut für Anorganische und Analytische Chemie, Friedrich-Schiller-Universität Jena, Carl-Zeiss-Promenade 10, 07745 Jena, Germany
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Alekseev YE, Garnovskii AD, Zhdanov YA. Complexes of natural carbohydrates with metal cations. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc1998v067n08abeh000343] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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27
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Zhang Z, Gibson P, Clark SB, Tian G, Zanonato PL, Rao L. Lactonization and Protonation of Gluconic Acid: A Thermodynamic and Kinetic Study by Potentiometry, NMR and ESI-MS. J SOLUTION CHEM 2007. [DOI: 10.1007/s10953-007-9182-x] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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28
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Assembling Sugars and Metals: Novel Architectures and Reactivities in Transition Metal Chemistry. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/9780470166468.ch5] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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Tabassum S, Mathur S. Synthesis, Characterization, Solution Stability Studies, Electrochemistry, and DNA‐Binding Behavior of Cu(II) Complexes of D‐Gluconic Acid. J Carbohydr Chem 2007. [DOI: 10.1080/07328300500446483] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Sartaj Tabassum
- a Department of Chemistry , Aligarh Muslim University , Aligarh , India
| | - Suvigya Mathur
- a Department of Chemistry , Aligarh Muslim University , Aligarh , India
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Yano S, Nakagoshi M, Teratani A, Kato M, Tanase T, Yamamoto Y, Uekusa H, Ohashi Y. Intelligent Sugar Complexes. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587259608039384] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Shigenobu Yano
- a Department of Chemistry , Nara Women's University, Nara , Nara , 630 , Japan
| | - Masako Nakagoshi
- a Department of Chemistry , Nara Women's University, Nara , Nara , 630 , Japan
| | - Akemi Teratani
- a Department of Chemistry , Nara Women's University, Nara , Nara , 630 , Japan
| | - Masako Kato
- a Department of Chemistry , Nara Women's University, Nara , Nara , 630 , Japan
| | - Tomoaki Tanase
- b Department of Chemistry , Toho University , Funabashi, Chiba , 274 , Japan
| | - Yasuhiro Yamamoto
- b Department of Chemistry , Toho University , Funabashi, Chiba , 274 , Japan
| | - Hidehiro Uekusa
- c Department of Chemistry , Tokyo Institute of Technology , Meguro, Tokyo , 152 , Japan
| | - Yuji Ohashi
- c Department of Chemistry , Tokyo Institute of Technology , Meguro, Tokyo , 152 , Japan
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Burkhardt A, Buchholz A, Görls H, Plass W. Synthesis, Structure and Magnetic Properties of a Tetranuclear Copper(II) Complex on the Basis of a 2-Substituted Glucopyranoside Schiff Base Ligand. Eur J Inorg Chem 2006. [DOI: 10.1002/ejic.200600404] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Affiliation(s)
- Enrique J. Baran
- a Centro de Química Inorgánica (CEQUINOR/CONICET,UNLP) Facultad de Ciencias Exactas, Universidad Nacional de La Plata , C. Correo 962, La Plata, 1900, Argentina
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Alexeev Y, Vasilchenko I, Kharisov B, Blanco L, Garnovskii A, Zhdanov Y. Review: synthetically modified carbohydrates as ligands. J COORD CHEM 2006. [DOI: 10.1080/00958970412331297523] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Yu.E. Alexeev
- a Institute of Physical and Organic Chemistry , Rostov State University , Rostov-on-Don, 344090, Russia
- b South Scientific Center of Russian Academy of Sciences , 344006 Rostov-on-Don, Chekhova st. 4.1, Russia
| | - I.S. Vasilchenko
- a Institute of Physical and Organic Chemistry , Rostov State University , Rostov-on-Don, 344090, Russia
- b South Scientific Center of Russian Academy of Sciences , 344006 Rostov-on-Don, Chekhova st. 4.1, Russia
| | - B.I. Kharisov
- c Faculdad de Ciencias Quimicas , Universidad Autonoma de Nuevo Leon , Monterrey, Mexico
| | - L.M. Blanco
- c Faculdad de Ciencias Quimicas , Universidad Autonoma de Nuevo Leon , Monterrey, Mexico
| | - A.D. Garnovskii
- a Institute of Physical and Organic Chemistry , Rostov State University , Rostov-on-Don, 344090, Russia
- b South Scientific Center of Russian Academy of Sciences , 344006 Rostov-on-Don, Chekhova st. 4.1, Russia
| | - Yu.A. Zhdanov
- a Institute of Physical and Organic Chemistry , Rostov State University , Rostov-on-Don, 344090, Russia
- b South Scientific Center of Russian Academy of Sciences , 344006 Rostov-on-Don, Chekhova st. 4.1, Russia
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Kato M, Sah AK, Tanase T, Mikuriya M. Tetranuclear Copper(II) Complexes Bridged by α-d-Glucose-1-Phosphate and Incorporation of Sugar Acids through the Cu4 Core Structural Changes. Inorg Chem 2006; 45:6646-60. [PMID: 16903719 DOI: 10.1021/ic060202h] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Tetranuclear copper(II) complexes containing alpha-D-glucose-1-phosphate (alpha-D-Glc-1P), [Cu4(mu-OH){mu-(alpha-D-Glc-1P)}2(bpy)4(H2O)2]X3 [X = NO3 (1a), Cl (1b), Br (1c)], and [Cu4(mu-OH){mu-(alpha-D-Glc-1P)}2(phen)4(H2O)2](NO3)3 (2) were prepared by reacting the copper(II) salt with Na2[alpha-D-Glc-1P] in the presence of diimine ancillary ligands, and the structure of 2 was characterized by X-ray crystallography to comprise four {Cu(phen)}2+ fragments connected by the two sugar phosphate dianions in 1,3-O,O' and 1,1-O mu4-bridging fashion as well as a mu-hydroxo anion. The crystal structure of 2 involves two chemically independent complex cations in which the C2 enantiomeric structure for the trapezoidal tetracopper(II) framework is switched according to the orientation of the alpha-D-glucopyranosyl moieties. Temperature-dependent magnetic susceptibility data of 1a indicated that antiferromagnetic spin coupling is operative between the two metal ions joined by the hydroxo bridge (J = -52 cm(-1)) while antiferromagnetic interaction through the Cu-O-Cu sugar phosphate bridges is weak (J = -13 cm(-1)). Complex 1a readily reacted with carboxylic acids to afford the tetranuclear copper(II) complexes, [Cu4{mu-(alpha-D-Glc-1P)}2(mu-CA)2(bpy)4](NO3)2 [CA = CH3COO (3), o-C6H4(COO)(COOH) (4)]. Reactions with m-phenylenediacetic acid [m-C6H4(CH2COOH)2] also gave the discrete tetracopper(II) cationic complex [Cu4{mu-(alpha-D-Glc-1P)}2(mu-m-C6H4(CH2COO)(CH2COOH))2(bpy)4](NO3)2 (5a) as well as the cluster polymer formulated as {[Cu4{mu-(alpha-D-Glc-1P)}2(mu-m-C6H4(CH2COO)2)(bpy)4](NO3)2}n (5b). The tetracopper structure of 1a is converted into a symmetrical rectangular core in complexes 3, 4, and 5b, where the hydroxo bridge is dissociated and, instead, two carboxylate anions bridge another pair of Cu(II) ions in a 1,1-O monodentate fashion. The similar reactions were applied to incorporate sugar acids onto the tetranuclear copper(II) centers. Reactions of 1a with delta-D-gluconolactone, D-glucuronic acid, or D-glucaric acid in dimethylformamide resulted in the formation of discrete tetracopper complexes with sugar acids, [Cu4{mu-(alpha-D-Glc-1P)}2(mu-SA)2(bpy)4](NO3)2 [SA = D-gluconate (6), D-glucuronate (7), D-glucarateH (8a)]. The structures of 6 and 7 were determined by X-ray crystallography to be almost identical with that of 3 with additional chelating coordination of the C-2 hydroxyl group of D-gluconate moieties (6) or the C-5 cyclic O atom of D-glucuronate units (7). Those with D-glucaric acid and D-lactobionic acid afforded chiral one-dimensional polymers, {[Cu4{mu-(alpha-D-Glc-1P)}2(mu-D-glucarate)(bpy)4](NO3)2}n (8b) and {[Cu4{mu-(alpha-D-Glc-1P)}2(mu-D-lactobionate)(bpy)4(H2O)2](NO3)3}n (9), respectively, in which the D-Glc-1P-bridged tetracopper(II) units are connected by sugar acid moieties through the C-1 and C-6 carboxylate O atoms in 8b and the C-1 carboxylate and C-6 alkoxy O atoms of the gluconate chain in 9. When complex 7 containing d-glucuronate moieties was heated in water, the mononuclear copper(II) complex with 2-dihydroxy malonate, [Cu(mu-O2CC(OH)2CO2)(bpy)] (10), and the dicopper(II) complex with oxalate, [Cu2(mu-C2O4)(bpy)2(H2O)2](NO3)2 (11), were obtained as a result of oxidative degradation of the carbohydrates through C-C bond cleavage reactions.
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Affiliation(s)
- Merii Kato
- Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-higashi-machi, Nara 630-8285, Japan
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Williams PAM, Etcheverry SB, Barrio DA, Baran EJ. Synthesis, characterization, and biological activity of oxovanadium(IV) complexes with polyalcohols. Carbohydr Res 2006; 341:717-24. [PMID: 16458276 DOI: 10.1016/j.carres.2006.01.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2005] [Revised: 12/27/2005] [Accepted: 01/09/2006] [Indexed: 11/25/2022]
Abstract
Oxovanadium(IV) complexes of the polyalcohols sorbitol, galactitol, and mannitol, of stoichiometry Na(2)[VO(L)(2)].H(2)O, were obtained from aqueous alkaline solutions. They were characterized by elemental analysis, infrared and UV-vis spectroscopies, thermoanalytical (thermogravimetric and differential thermal analysis) data, and magnetic susceptibility measurements. The biological activities of the complexes on the proliferation, differentiation, and glucose consumption were tested on osteoblast-like cells (MC3T3E1 osteoblastic mouse calvaria-derived cells and UMR106 rat osteosarcoma-derived cells) in culture. The three complexes exerted a biphasic effect on cell proliferation, being slight stimulating agents at low concentrations and inhibitory in the range of 25-100 microM. All the complexes inhibited cell differentiation in tumor osteoblasts. Their effects on glucose consumption were also discussed. The free ligands did not show any effect on the studied biological parameters.
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Affiliation(s)
- Patricia A M Williams
- Centro de Química Inorgánica (CEQUINOR/CONICET, UNLP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C. Correo 962, 1900 La Plata, Argentina
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Sah AK, Tanase T, Mikuriya M. Tri- and Tetranuclear Copper(II) Complexes Consisting of Mononuclear Cu(II) Chiral Building Blocks with a Sugar-Derived Schiff's Base Ligand. Inorg Chem 2006; 45:2083-92. [PMID: 16499370 DOI: 10.1021/ic051862+] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new sugar-derived Schiff's base ligand N-(3-tert-butyl-2-hydroxybenzylidene)-4,6-O-ethylidene-beta-D-glucopyranosylamine (H3L1) has been developed which afforded the coordinatively labile, alcoholophilic trinuclear Cu(II) complex [Cu3(L1)2(CH3OH)(H2O)] (1). Complex 1 has been further used in the synthesis of a series of alcohol-bound complexes with a common formula of [Cu3(L1)2(ROH)2] (R = Me (2), Et (3), nPr (4), nBu (5), nOct (6)). X-ray structural analyses of complexes 2-6 revealed the collinearity of trinuclear copper(II) centers with Cu-Cu-Cu angles in the range of 166-172 degrees . The terminal and central coppers are bound with NO3 and O4 atoms, respectively, and exhibit square-planar geometry. The trinuclear structures of 2-6 can be viewed as the two {Cu(L1)}- fragments capture a copper(II) ion in the central position, which is further stabilized by a hydrogen-bonding interaction between the alcohol ligands and the sugar C-3 alkoxo group. Complex 2 exhibits a strong antiferromagnetic interaction between the Cu(II) ions (J = -238 cm(-1)). Diffusion of methanol into a solution of complex 1 in a chloroform/THF mixed solvent afforded the linear trinuclear complex [Cu(3)(L1)2(CH3OH)2(THF)2] (7). The basic structure of 7 is identical to complex 2; however, THF binding about the terminal coppers (Cu-O(THF) = 2.394(7) and 2.466(7) A) has introduced the square-pyramidal geometry, indicating that the planar trinuclear complexes 2-6 are coordinatively unsaturated and the terminal metal sites are responsible for further ligations. In the venture of proton-transfer reactions, a successful proton transfer onto the saccharide C-3 alkoxo group has been achieved using 4,6-O-ethylidene-d-glucopyranose, resulting in the self-assembled tetranuclear complex, [Cu4(HL1)4] (8), consisting of the mononuclear Cu(II) chiral building blocks, {Cu(HL1)}.
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Affiliation(s)
- Ajay K Sah
- Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-higashi-machi, Nara 630-8285, Japan
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Mikata Y, Sugai Y, Obata M, Harada M, Yano S. Novel Oxygen Chirality Induced by Asymmetric Coordination of an Ether Oxygen Atom to a Metal Center in a Series of Sugar-Pendant Dipicolylamine Copper(II) Complexes. Inorg Chem 2006; 45:1543-51. [PMID: 16471965 DOI: 10.1021/ic051513f] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Six sugar-pendant 2,2'-dipicolylamine (DPA) ligands (L1-3 and L'1-3) have been prepared. OH-protected and unprotected D-glucose, D-mannose, and D-xylose were attached to a DPA moiety via an O-glycoside linkage. X-ray crystallography of the copper(II) complexes (1-5) with these ligands revealed that the anomeric oxygen atom is coordinated to the metal center in the solid state, generating a chiral center at the oxygen atom. The CD spectra of these copper complexes in methanol or aqueous solution exhibit Cotton effects in the d-d transition region, which indicates that the ether oxygen atoms remain coordinated to the metal center and the oxygen-atom chirality is preserved even in solution. For complexes 1 and 2, the inverted oxygen-atom chirality and chelate-ring conformation in the solid state are well correlated with the mirror-image CD spectra in methanol solution. The concomitant inversion of the asymmetric configuration around the copper center was also observed in a methanol solution of complex 3 and a pyridine solution of complex 2. The square-pyramidal/octahedral copper(II) centers also exhibited characteristic absorption and CD spectra.
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Affiliation(s)
- Yuji Mikata
- KYOUSEI Science Center, Nara Women's University, Japan.
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Sah AK, Tanase T. Amine mediated proton transfer reaction and C–Cl bond activation of solvent chloroform by a trinuclear copper(ii) complex of a glucopyranosylamine derived ligand. Dalton Trans 2006:3742-51. [PMID: 16883400 DOI: 10.1039/b606485j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An amine mediated C-Cl bond activation process of the solvent chloroform has been explored by a coordinatively labile trinuclear Cu(II) complex, [Cu3(L1)2(MeOH)(H2O)] (1), derived from N-(3-tert-butyl-2-hydroxybenzylidene)-4,6-O-ethylidene--D-glucopyranosylamine (H3L1). The effect of activation is extremely high with methylamine, resulting in the formation of [Cu(MeNH2)5]Cl2 (2) and [Cu(L2)2] (3; HL2 = 2-tert-butyl-6-[(methylimino)methyl]phenol), however, under identical conditions it is moderate with ethylamine resulting in the isolation of crystals of the intermediate amine bound trinuclear copper(II) complex, [Cu3(L1)2(EtNH2)2(MeOH)2] (5), which was further converted into the mononuclear complex, [Cu(HL1)(EtNH2)] (6), in a novel crystal-to-crystal transformation. The successive isolation of the ethylamine-bound tri- and mononuclear complexes, 5 and 6, supported the occurrence of proton transfer reactions, which might be a key step in C-Cl bond activation. The primary and secondary amines, 2-aminomethylpyridine, N,N-dimethylethylenediamine, and 1,4,7-triazacyclononane, also having chelating features further enhance the rate of activation. No activation has been noted in the case of triethylamine and N,N,N,N-tetramethylethylenediamine. Formation of a carbene-trapped compound, 2,6-xylyl isocyanide, was confirmed in the reaction of complex 1 with 1,4,7-triazacyclononane and 2,6-xylidine in CHCl3, suggesting that the C-Cl bond cleavage led to the generation of dichlorocarbene. In addition, the mononuclear complex 6 has been transformed into a homotrinuclear complex [Cu3(L1)2(MeOH)2] by treatment with Cu(II) ions in MeOH/CHCl3, suggesting the possibility that the former could be regarded as a suitable metalloligand for heterotrimetallic complex synthesis.
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Affiliation(s)
- Ajay K Sah
- Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-higashi-machi, Nara, 630-8285, Japan
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Gonçalves AG, Ducatti DRB, Paranha RG, Eugênia M, Duarte R, Noseda MD. Positional isomers of sulfated oligosaccharides obtained from agarans and carrageenans: preparation and capillary electrophoresis separation. Carbohydr Res 2005; 340:2123-34. [PMID: 16045901 DOI: 10.1016/j.carres.2005.06.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2005] [Accepted: 06/10/2005] [Indexed: 11/20/2022]
Abstract
Partial reductive hydrolysis was used to produce oligosaccharide alditols from repetitive sulfated galactans obtained from four Rhodophyta species: kappa-carrageenan (from Kappaphycus alvarezii), theta-carrageenan (Gigartina skottsbergii-alkali-treated lambda-carrageenan), agarose 6-sulfate (Gracilaria domingensis), and pyruvylated agarose 2-sulfate (Acanthophora spicifera-alkali-treated pyruvylated agaran sulfate). Each hydrolyzate was submitted to anion-exchange and gel-filtration chromatography, and the isolated oligosaccharide alditols were identified by 1D and 2D NMR spectroscopy and by ESI mass spectrometry. The positional isomers of the sulfated oligosaccharide alditols were then completely resolved by capillary electrophoresis in a borate buffer. Attempts to correlate the availability of the hydroxyl groups for borate complexation with the relative migration of the oligosaccharides are presented.
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Affiliation(s)
- Alan G Gonçalves
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, Curitiba, Brazil
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Gaidamauskas E, Norkus E, Vaiciūniene J, Crans DC, Vuorinen T, Jaciauskiene J, Baltrūnas G. Evidence of two-step deprotonation of d-mannitol in aqueous solution. Carbohydr Res 2005; 340:1553-6. [PMID: 15882852 DOI: 10.1016/j.carres.2005.03.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2004] [Revised: 03/24/2005] [Accepted: 03/24/2005] [Indexed: 11/29/2022]
Abstract
Deprotonation of D-mannitol was studied in aqueous basic solutions by means of potentiometry and (13)C NMR spectroscopy. Two-step dissociation in the pH range from 12 to 13.8 was shown, and successive dissociation constants K(a1) and K(a2) were determined. In a solution with ionic strength I = 1.0 M (NaOH + NaNO(3)) pK(a1) = 13.1 +/- 0.1 and pK(a2) = 13.8 +/- 0.2. With increasing ionic strength from 0.75 to 3.0 M, both pK(a1) and pK(a2) values decrease. Deprotonation-induced chemical shifts in pH-variable (13)C NMR spectra show that the OH-groups next to internal carbon atoms C-3 and C-4 dissociate to a greater extent compared to OH-groups next to external carbon atoms C-1 and C-6.
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Gottschaldt M, Wegner R, Görls H, Klüfers P, Jäger EG, Klemm D. Binuclear copper(II) complexes of 5-N-(β-ketoen)amino-5-deoxy-1,2-O-isopropylidene-α-d-glucofuranoses: synthesis, structure, and catecholoxidase activity. Carbohydr Res 2004; 339:1941-52. [PMID: 15261587 DOI: 10.1016/j.carres.2004.05.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2004] [Revised: 05/10/2004] [Accepted: 05/17/2004] [Indexed: 10/26/2022]
Abstract
The synthesis of 5-amino-5-deoxy-1,2-O-isopropylidene-alpha-D-glucofuranose (8) was carried out via 5-azido-5-deoxy-1,2:3,4-O-diisopropylidene-alpha-D-glucofuranose (6), its reduction with Raney-Nickel and deprotection. 5-N-(beta-Ketoen)amino-5-deoxy-1,2-O-isopropylidene-alpha-D-glucofuranoses (8a-f) were synthesized from 5-amino-5-deoxy-1,2-O-isopropylidene-alpha-D-glucofuranose and beta-ketoenolethers leading to ligands with symmetrically substituted double bonds (8a, 8b) and e/z isomeric mixtures with unsymmetrical substitution (8c-f). Reaction of the ligands with Cu(II) ions leads to binuclear complexes of the general formula Cu2L2. In contrast to copper(II) complexes which are not derived from amino carbohydrates the metal centers in the compounds saturate their coordination sphere by complexation of additional solvent molecules, interaction with neighboring complex molecules, or free hydroxyl groups of the own ligand. Residues of the ketoen moiety, R1 and R2, also influence the electronic properties of the metal centers. The combination of factors leads to different catalytic properties of the complexes in catecholoxidase-like reactions.
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Affiliation(s)
- Michael Gottschaldt
- Friedrich Schiller University Jena, Institute of Organic and Macromolecular Chemistry, Humboldtstrasse 10, 07743 Jena, Germany.
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Hegetschweiler K, Kuppert D, Huppert J, Straka M, Kaupp M. Spin−Orbit-Induced Anomalous pH-Dependence in 1H NMR Spectra of CoIII Amine Complexes: A Diagnostic Tool for Structure Elucidation. J Am Chem Soc 2004; 126:6728-38. [PMID: 15161301 DOI: 10.1021/ja0316723] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The pH-dependent (1)H NMR characteristics of a series of Co(III)-(polyamin)-aqua and Co(III)-(polyamin)-(polyalcohol) complexes, [Co(tach)(ino-kappa(3)-O(1,3,5))](3+) (1(3+)), [Co(tach)(ino-kappa(3)-Omicron(1,2,6))](3+) (2(3+)), [Co(tach)(taci-kappa-Nu(1)-kappa(2)-O(2,6))](3+) (3(3+)), [Co(ditame)(H(2)O)](3+) (4(3+)), and [Co(tren)(H(2)O)(2)](3+) (5(3+)), were studied in D(2)O by means of titration experiments (tach = all-cis-cyclohexane-1,3,5-triamine, ino = cis-inositol, taci = 1,3,5-triamino-1,3,5-trideoxy-cis-inositol, tren = tris(2-aminoethyl)amine, ditame = 2,2,6,6-tetrakis-(aminomethyl)-4-aza-heptane). A characteristic shift was observed for H(-C) hydrogen atoms in the alpha-position of a coordinated amino group upon deprotonation of a coordinated oxygen donor. For a cis-H-C-N-Co-O-H arrangement, deprotonation of the oxygen donor resulted in an additional shielding (shift to lower frequency) of the H(-C) proton, whereas for a trans-H-C-N-Co-O-H arrangement, deprotonation resulted in a deshielding (shift to higher frequency). The effect appears to be of rather general nature: it is observed for primary (1(3+)-5(3+)), secondary (4(3+)), and tertiary (5(3+)) amino groups, and for the deprotonation of an alcohol (1(3+)-3(3+)) or a water (4(3+), 5(3+)) ligand. Spin-orbit-corrected density functional calculations show that the high-frequency deprotonation shift for the trans-position is largely caused by a differential cobalt-centered spin-orbit effect on the hydrogen nuclear shielding. This effect is conformation dependent due to a Karplus-type behavior of the spin-orbit-induced Fermi-contact shift and thus only significant for an approximately antiperiplanar H-C-N-Co arrangement. The differential spin-orbit contribution to the deprotonation shift in the trans-position arises from the much larger spin-orbit shift for the protonated than for the deprotonated state. This is in turn due to a trans-effect of the deprotonated (hydroxo or alkoxo) ligand, which weakens the trans Co-N bond and thereby interrupts the Fermi-contact mechanism for transfer of the spin-orbit-induced spin polarization to the hydrogen nucleus in question. The unexpectedly large long-range spin-orbit effects found here for 3d metal complexes are traced back to small energy denominators in the perturbation theoretical expressions of the spin-orbit shifts.
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Affiliation(s)
- Kaspar Hegetschweiler
- Universität des Saarlandes, Anorganische Chemie, Postfach 15 11 50, D-66041 Saarbrücken, Germany.
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Abstract
We investigated the complex formation between various underivatized carbohydrates and the binuclear copper(II) complex 1, Cu(2)(bpdpo). A combined approach of UV/vis and CD spectroscopic investigations shows a large discrimination ability of 1 for structurally closely related monosaccharides in alkaline solution. The dominating form of the binuclear copper(II) complex consists of a [Cu(2)L(-)(H)(OH)(2)](+) species between pH 11 and 13, as determined from pH-dependent spectrophotometric titration experiments. The binding strengths of the 1:1 sugar-1 complexes, derived from the biologically important monosaccharides d-mannose (3) and d-glucose (5), is about 1.5 orders of magnitude different at pH 12.40. Moreover, a blue- or a red-shift of the absorption maximum of 1 accompanies the sugar binding and highlights the ability of 1 to discriminate carbohydrates. This phenomenon is due to the number of hydroxyl groups of the particular monosaccharide involved in chelation to the binuclear metal complex.
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Affiliation(s)
- Susanne Striegler
- Division of Inorganic Chemistry II, University of Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany.
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Yang L, Su Y, Xu Y, Wang Z, Guo Z, Weng S, Yan C, Zhang S, Wu J. Interactions between metal ions and carbohydrates. Coordination behavior of neutral erythritol to Ca(II) and lanthanide ions. Inorg Chem 2003; 42:5844-56. [PMID: 12971752 DOI: 10.1021/ic0300464] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The study of the sugar-metal ion interactions remains one of the main objectives of carbohydrate coordination chemistry because the interactions between metal ions and carbohydrates are involved in many biochemical processes. This paper presents a comparison of coordination structures of erythritol with alkaline-earth-metal and lanthanide chloride and nitrate in the solid state using FT-IR and X-ray diffraction. Neutral, nondeprotonated erythritol (E) reacts with CaCl(2) to give three CaCl(2)(-)erythritol (CaE(I), CaE(II), CaE(III)) complexes, showing that three of the five general features of calcium-carbohydrate complexes deduced in the reference encounter contrary examples. Different coordination structures have been observed for calcium and lanthanide chloride and nitrates. The coordination of carbohydrates to metal ions is complicated, and erythritol, chloride ions, nitrates, water molecules, and ethanol (crystallization medium and reaction solvents) have the chance to coordinate to metal ions. IR spectral results show that different lanthanide ions, from LaCl(3) to TbCl(3), have similar coordination structures with erythritol. The results show that erythritol can act as two bidentate neutral ligands (CaE(I), CaE(II), CaE(III), CaEN, PrE, NdE) or as a three-hydroxyl donor (NdEN). The IR results are consistent with the crystal structures.
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Affiliation(s)
- Limin Yang
- The State Key Laboratory of Rare Earth Materials Chemistry and Applications, Department of Chemical Biology, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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Costamagna J, Lillo LE, Matsuhiro B, Noseda MD, Villagrán M. Ni(II) complexes with Schiff bases derived from amino sugars. Carbohydr Res 2003; 338:1535-42. [PMID: 12860424 DOI: 10.1016/s0008-6215(03)00237-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
It was found by 1H and 13C NMR spectroscopy that the Schiff base, 2-deoxy-2-(2-hydroxybenzaldimino)-D-glucopyranose exhibits enol-imine-keto-amine and anomeric equilibria in methanolic, and in dimethyl sulfoxide solutions. The reaction of the Schiff base with nickel acetate gave the bidentate, mononuclear Ni(II) complex that was characterized by spectroscopic methods and by cyclic voltammetry. The coordination of the Schiff base to the metal is through the enol-imine tautomeric form, and the anomeric equilibrium remains in dimethyl sulfoxide solutions. This complex was also obtained by reaction of D-glucosamine with Ni(II) salicylaldehydate. The same reaction was employed for the synthesis of bis-N-[2-deoxy-D-galactopyranosyl-2-(2-hydroxybenzaldiminate)]Ni(II). The small paramagnetic shifts of the 1H NMR resonances of the complexes suggest that paramagnetic species are present in low proportions.
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Affiliation(s)
- Juan Costamagna
- Facultad de Química y Biologi;a, Universidad de Santiago de Chile, Casilla 40, Correo 33, Santiago, Chile
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Smiataczowa K, Kosmalski J, Widernik T, Warnke Z. Mechanism of the transition-metal-catalyzed mutarotation reaction of N-(p-chlorophenyl)-beta-D-glucopyranosylamine in methanol. Carbohydr Res 2003; 338:969-75. [PMID: 12681921 DOI: 10.1016/s0008-6215(03)00023-5] [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: 10/27/2022]
Abstract
Rate constants for the mutarotation reaction of N-(p-chlorophenyl)-beta-D-glucopyranosylamine (NGlc) in methanol have been determined in the presence of transition metal chlorides (MCl(2)), at 25 degrees C. The activity of the metal ions catalyzing the alpha-pyranoside<-->beta-pyranoside interconversion has been found to increase in the following series: Mn(2+)<Co(2+)<Ni(2+)<Zn(2+)<Cu(2+). The pHs of the methanolic solutions of the chlorides were measured and acidity constants of the [MCl(CH(3)OH)(5)](+) ions and NGlc were determined in this solvent. Addition of NGlc to the salt solutions resulted in lowering their pH. Raising the methyloxonium ion concentration in the solutions resulted in rapid increase in the rate of mutarotation in the presence of MCl(2). It is suggested that in solutions of NGlc and MCl(2), the CH(3)OH(2)(+) ions are generated by solvolysis of the salts and additionally by dissociation of the hydroxyl group at C-6 of the glucosylamine molecule taking place during complexation of the metal ions. A scheme has been derived for interaction of deprotonated NGlc molecules with the transition metal ions.
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Affiliation(s)
- Kazimiera Smiataczowa
- Faculty of Chemistry, University of Gdańsk, Sobieskiego 18, PL-80-952 Gdańsk, Poland
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Su Y, Yang L, Wang Z, Weng S, Yan C, Wu J. Sugar interaction with metal ion: crystal structure and spectroscopic study of SrCl2.galactitol.4H2O. J Inorg Biochem 2003; 94:43-9. [PMID: 12620672 DOI: 10.1016/s0162-0134(02)00634-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The crystal structure of SrCl(2).galactitol.4H(2)O has been determined. It belongs to monoclinic system, C2/c space group with unit cell dimensions: a=13.9849(3), b=14.1601(5), c=8.3026(3) A, beta=104.621(2) degrees, V=1590.9(9) A(3) and Z=4. Each Sr(2+) ion in the unit cell binds to two molecules of galactitol through O2 and O3 in one alditol and O2' and O3' in the other, as well as to four water molecules. Sr-O distances in SrCl(2).galactitol.4H(2)O complex range from 2.5420 to 2.6359 A. FT-IR, Raman and far-IR spectra of SrCl(2).galactitol.4H(2)O all show that SrCl(2) coordinates with galactitol through OH groups of the sugar molecule to form the new complex.
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Affiliation(s)
- Yunlan Su
- The State Key Laboratory of Rare Earth Material Chemistry and Applications, Department of Chemical Biology, College of Chemistry, Peking University, 100871, Beijing, PR China
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Rajsekhar G, Sah AK, Rao CP, Guionneau P, Bharathy M, GuruRow TN. Bis-(μ-saccharide-C-2-oxo) dinuclear Cu(ii) complexes of 4,6-O-butylidene/ethylidene-N-(α-hydroxynaphthylidene/o-hydroxybenzylidene/5-bromo-o-hydroxybenzylidene)-β-d-glucopyranosylamine: structural aspects and data correlations. Dalton Trans 2003. [DOI: 10.1039/b303729k] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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