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Biedermann N, Schnizer J, Lager D, Schnürch M, Stanetty C. Indium-Mediated Acyloxyallylation-Based Synthesis of Galacto-Configured Higher-Carbon Sugar Alcohols as Potential Phase Change Materials. J Org Chem 2024; 89:5573-5588. [PMID: 38578036 DOI: 10.1021/acs.joc.4c00067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Sugar alcohols fulfilling specific structural requirements are a substance class with great potential as organic phase change materials (PCMs). Within this work, we demonstrate the indium-mediated acyloxyallylation (IMA) as a useful strategy for the synthesis of higher-carbon sugar alcohols of the galacto-family featuring all hydroxyl groups in a 1,3-anti-relationship with three major synthetic achievements: first, the dihydroxylation of the IMA-derived allylic sugar derivates was systematically studied in terms of diastereoselectivity, revealing a high degree of substrate control toward anti-addition. Second, we demonstrated the use of a "double Mitsunobu" reaction, inverting the stereochemistry of terminal diols. Third, the IMA toolbox was expanded to accomplish the synthesis of derivatives with up to 10 carbon atoms from particularly unreactive aldoses. Thermal investigations of all synthesized sugar alcohols, including examples with exclusive 1,3-anti- and suboptimal 1,3-syn-relationships as well as even and odd numbers of carbon atoms, were performed. We observed clear trends in melting points and thermal storage densities and discovered limitations of organic substances in this class with melting points above 240 °C as PCMs in terms of thermal stability. With our study, we provide insights into the dependence of thermal properties on structural features, thus contributing to further understanding of organic PCMs for thermal energy storage applications.
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Affiliation(s)
- Nina Biedermann
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060 Vienna, Austria
| | - Julian Schnizer
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060 Vienna, Austria
| | - Daniel Lager
- Energy Department, AIT Austrian Institute of Technology GmbH, Giefinggasse 2, 1210 Vienna, Austria
| | - Michael Schnürch
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060 Vienna, Austria
| | - Christian Stanetty
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060 Vienna, Austria
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Amarasekara AS, Ali SR, Fernando H, Sena V, Timofeeva TV. A comparison of homogeneous and heterogeneous Brønsted acid catalysts in the reactions of meso-erythritol with aldehyde/ketones. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0226-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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Uriel C, Rijo P, Fernandes AS, Gómez AM, Fraser-Reid B, López JC. Methyl 1,2-Orthoesters in Acid-Washed Molecular Sieves Mediated Glycosylations. ChemistrySelect 2016. [DOI: 10.1002/slct.201601613] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Clara Uriel
- Instituto de Química Orgánica General (IQOG-CSIC); Bioorganic Chemistry Department; Juan de la Cierva 3 28006 Madrid Spain
| | - Patricia Rijo
- Center for Research in Biosciences &Health Technologies (CBIOS); Universidade Lusófona de Humanidades e Tecnologías; 1749-024 Lisboa Portugal
- Instituto de Investigaçao do Medicamento (iMed.ULisboa); Faculdade de Farmácia; Universidade de Lisboa; 1649-003 Lisboa Portugal
| | - Ana S. Fernandes
- Center for Research in Biosciences &Health Technologies (CBIOS); Universidade Lusófona de Humanidades e Tecnologías; 1749-024 Lisboa Portugal
- Instituto de Investigaçao do Medicamento (iMed.ULisboa); Faculdade de Farmácia; Universidade de Lisboa; 1649-003 Lisboa Portugal
| | - Ana M. Gómez
- Instituto de Química Orgánica General (IQOG-CSIC); Bioorganic Chemistry Department; Juan de la Cierva 3 28006 Madrid Spain
| | - Bert Fraser-Reid
- Natural Products and Glycotechnology Research Institute, Inc. (NPG); 595F Weathersfield Road Pittsboro, NC 27312 USA
| | - J. Cristóbal López
- Instituto de Química Orgánica General (IQOG-CSIC); Bioorganic Chemistry Department; Juan de la Cierva 3 28006 Madrid Spain
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Griffen JA, Kenwright SJ, Abou-Shehada S, Wharry S, Moody TS, Lewis SE. Benzoate dioxygenase fromRalstonia eutrophaB9 – unusual regiochemistry of dihydroxylation permits rapid access to novel chirons. Org Chem Front 2014. [DOI: 10.1039/c3qo00057e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxidation of benzoic acid by a microorganism expressing benzoate dioxygenase leads to the formation of an unusualipso,orthoarenecis-diol in sufficient quantities to be useful for synthesis.
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Affiliation(s)
- Julia A. Griffen
- Centre for Sustainable Chemical Technologies
- University of Bath
- Claverton Down, UK
| | - Sarah J. Kenwright
- Centre for Sustainable Chemical Technologies
- University of Bath
- Claverton Down, UK
| | - Sarah Abou-Shehada
- Centre for Sustainable Chemical Technologies
- University of Bath
- Claverton Down, UK
| | - Scott Wharry
- Department of Biocatalysis and Isotope Chemistry
- Almac Group Ltd
- Craigavon, UK
| | - Thomas S. Moody
- Department of Biocatalysis and Isotope Chemistry
- Almac Group Ltd
- Craigavon, UK
| | - Simon E. Lewis
- Centre for Sustainable Chemical Technologies
- University of Bath
- Claverton Down, UK
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Hough L, McCarthy KC, Richardson AC. The preparation and reactions of 2-halogenoethyl β-L-arabinopyranosides. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19911101104] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Chittenden GJF. Acetalation studies. Part VII. Some new aspects of the isopropylidenation of galactitol. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19891080104] [Citation(s) in RCA: 3] [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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Forsman JJ, Leino R. Acetonation of L-pentoses and 6-deoxy-L-hexoses under kinetic control using heterogeneous acid catalysts. Carbohydr Res 2010; 345:1548-54. [PMID: 20538265 DOI: 10.1016/j.carres.2010.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Accepted: 05/06/2010] [Indexed: 11/17/2022]
Abstract
The fibrous polymer-supported sulfonic acid catalyst Smopex-101 H+ proved to be an efficient catalyst for the preparation of O-isopropylidene derivatives from a series of rare sugars. Acetonation of the reducing sugars L-arabinose, L-ribose, L-xylose, L-fucose, and L-rhamnose in N,N-dimethylformamide by 2,2-dimethoxypropane or 2-methoxypropene led to the formation of the kinetically favored di-O- and/or mono-O-isopropylidene derivatives in 46-88% yields. The method consists of a simple experimental procedure which does not require predried solvents or reagents. The catalyst is easily recovered and can be regenerated making the procedure economically viable even for large-scale synthesis.
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Affiliation(s)
- Jonas J Forsman
- Laboratory of Organic Chemistry, Abo Akademi University, Abo, Finland
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Pérez-Mayoral E, Martín-Aranda RM, López-Peinado AJ, Ballesteros P, Zukal A, Čejka J. Green Synthesis of Acetals/Ketals: Efficient Solvent-Free Process for the Carbonyl/Hydroxyl Group Protection Catalyzed by SBA-15 Materials. Top Catal 2009. [DOI: 10.1007/s11244-008-9151-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Castro S, Cherney EC, Snyder NL, Peczuh MW. Synthesis of substituted septanosyl-1,2,3-triazoles. Carbohydr Res 2007; 342:1366-72. [PMID: 17466290 DOI: 10.1016/j.carres.2007.03.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2007] [Revised: 03/22/2007] [Accepted: 03/26/2007] [Indexed: 01/27/2023]
Abstract
A carbohydrate-based oxepine, derived from 2-deoxy-D-arabino-hexopyranose, was used to prepare a family of septanosyl-1,2,3-triazoles in four steps. DMDO mediated epoxidation of the oxepine followed by trapping of the intermediate 1,2-anhydroseptanose by sodium azide gave the beta-substituted glycosyl azide. The septanosyl azide was then reacted with a number of alkynes under thermal Huisgen or copper(I) mediated reaction conditions. Hydrogenolysis of benzyl protecting groups gave substituted septanosyl-1,2,3-triazoles. The new septanose-based structures were then evaluated as potential glycosidase inhibitors.
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Affiliation(s)
- Steve Castro
- Department of Chemistry, University of Connecticut, U-3060, 55 North Eagleville Road, Storrs, CT 06269, United States
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Rana SS, Vig R, Matta KL. Synthesis ofO-α-L-Fucopyranosyl-(1→2)-O-β-D-galactopyranosyl-(1→4)-2-acetamido-2-deoxy-D-glucopyranose. The H-Blood Group Specific Trisaccharide. J Carbohydr Chem 2007. [DOI: 10.1080/07328308208085099] [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]
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Grindley TB, Wickramage C. Structural Assignments of Ethylidene Acetals by NMR Spectroscopy. J Carbohydr Chem 2006. [DOI: 10.1080/07328308508058830] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Tararov V, König G, Börner A. Synthesis and Highly Stereoselective Hydrogenation of the Statin Precursor Ethyl (5S)-5,6-Isopropylidenedioxy-3-oxohexanoate. Adv Synth Catal 2006. [DOI: 10.1002/adsc.200600291] [Citation(s) in RCA: 22] [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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Al-Mughaid H, Grindley TB. Selective chemistry of tripentaerythritol Synthesis of acetals and their derivatives. CAN J CHEM 2006. [DOI: 10.1139/v06-034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Tripentaerythritol was converted efficiently into 2′,2′′:6′,6′′:10′,10′′-tri-O-cyclohexylidene-2,2,6,6,10,10-hexakis(hydroxymethyl)-4,8-dioxa-1,11-undecandiol (4) by the toluenesulfonic acid catalysed reaction with cyclohexanone in a mixture of N,N-dimethylformamide and benzene. Reaction of tripentaerythritol with benzaldehyde under similar conditions gave an easily separated mixture of the four possible stereoisomers. Structures of these stereoisomers were assigned based on 1H and 13C NMR chemical shifts using trends previously observed for the dibenzylidene acetals of dipentaerythritol, whose structures had been established unambiguously by X-ray crystallography. It was found that reduction of the mixture of benzylidene acetals to 2,6,10-tris(benzyloxymethyl)-4,8-dioxa-1,11-undecanediol could be accomplished using triethylsilane with ethylaluminium dichloride as the Lewis acid after a number of commonly used conditions for this transformation failed.Key words: pentaerythritol, tripentaerythritol, dipentaerythritol, acetals, benzylidene acetals, reduction.
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Tormena CF, Dias LC, Rittner R. Orbital Interactions and Their Effects on 13C NMR Chemical Shifts for 4,6-Disubstituted-2,2-dimethyl-1,3-dioxanes. A Theoretical Study. J Phys Chem A 2005; 109:6077-82. [PMID: 16833944 DOI: 10.1021/jp052048a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A theoretical study is employed to describe the orbital interactions involved in the conformers' stability, the energies for the stereoelectronic interactions, and the corresponding effects of these interactions on the molecular structure (bond lengths) for cis- and trans-4,6-disubstituted-2,2-dimethyl-1,3-dioxanes. For cis-4,6-disubstituted-2,2-dimethyl-1,3-dioxanes, two LPO --> sigma*C(2)-Me(8) interactions are extremely important and the energies involved in these interactions are in the range 6.81-7.58 kcal mol(-1) for the LP(O)(1) --> sigma*C(2)-Me(8) and 7.58-7.71 kcal mol(-1) for the LP(O)(3) --> sigma*C(2)-Me(8) interaction. These two LP(O) --> sigma*C(2)-Me(8) interactions cause an upfield shift, indicating an increased shielding (increased electron density) of the ketal carbon C(2) as well as the axial Me(8) group in the chair conformation. These LP(O) --> sigma*C(2)-Me(8) hyperconjugative anomeric type interactions can explain the 13C NMR chemical shifts at 19 ppm for the axial methyl group "Me(8)" and 98.5 ppm for the ketal carbon "C(2)". The observed results for the trans derivatives showed that for compounds 2a-c (R = -CN, -C[triple bond]CH, and -CHO, respectively) the chair conformation is predominant, whereas for 2d,f-h [-CH3, -Ph, -C6H4(p-NO2), -C6H4(p-OCH3), respectively] the twist-boat is the most stable compound and for 2e [-C(CH3)3] is the only form.
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Affiliation(s)
- Claudio F Tormena
- Departamento de Química, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo (USP), Av. Bandeirantes, 3900, 14040-901, Ribeirão Preto SP, Brazil.
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Börner A, Kristen H, Peseke K, Michalik M. Synthesen von C-Nucleosiden und C-Nucleosidanaloga. IV. Darstellung und Charakterisierung von 5(S)-bzw. 5(R)-Tetrahydroxybutyl-3-methyl-1,3-oxazolidinen. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/prac.19863280104] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Beer D, Bieri JH, Macher I, Prewo R, Vasella A. Desoxy-nitrozucker. 13. Mitteilung. Herstellung ungeschützter und partiell geschützter 1-Desoxy-1-nitro-D-aldosen sowie Röntgenstrukturanalysen einiger ihrer Vertreter. Helv Chim Acta 2004. [DOI: 10.1002/hlca.19860690526] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Godskesen M, Lundt I, Søtofte I. Unusual ring contraction by substitution of 4-O-activated-pentono-1,5-lactams with cyanide. Stereospecific synthesis of 6-amino-1,4,5,6-tetradeoxy-1,4-imino-hexitols. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s0957-4166(99)00536-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Giry-Panaud N, Descotes G, Bouchu A, Queneau Y. Consequences of the Preeminent Reactivity of 2-OH in Sucrose: Cyclic Acetalation at 2-OH and 3-OH under Basic Conditions. European J Org Chem 1999. [DOI: 10.1002/(sici)1099-0690(199912)1999:12<3393::aid-ejoc3393>3.0.co;2-i] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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McGhie KE, Paton R. The nitrile oxide–isoxazoline approach to 11-carbon monosaccharides. Conversion of 3-(tetritol-1-yl)-5-(tetrofuranos-4-yl)-2-isoxazolines into 6-deoxyundecoses. Carbohydr Res 1999. [DOI: 10.1016/s0008-6215(99)00168-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Carbonnel S, Fayet C, Gelas J. Introduction of a carboxyl group through an acetal as a new route to carboxylic acid derivatives of sugars. Carbohydr Res 1999; 319:63-73. [PMID: 10520255 DOI: 10.1016/s0008-6215(99)00118-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new class of carboxylic acid derivatives of sugars is described. Acetalation of mono- and disaccharides with a functionalized vinylic ether or a diethoxybutanoate afforded mono- and diacetals bearing an ester group. Their saponification led to the corresponding carboxylic acid acetals in which the length of the acetal side chain can be modulated.
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Affiliation(s)
- S Carbonnel
- Ecole Nationale Supérieure de Chimie de Clermont-Ferrand, Ensemble Scientifique des Cézeaux, Aubière, France
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Havard JM, Vladimirov N, Fréchet JMJ, Yamada S, Willson CG, Byers JD. Photoresists with Reduced Environmental Impact: Water-Soluble Resists Based on Photo-Cross-Linking of a Sugar-Containing Polymethacrylate. Macromolecules 1998. [DOI: 10.1021/ma981372j] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Renner MK, Jensen PR, Fenical W. Neomangicols: Structures and Absolute Stereochemistries of Unprecedented Halogenated Sesterterpenes from a Marine Fungus of the Genus Fusarium. J Org Chem 1998. [DOI: 10.1021/jo981226b] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Matthew K. Renner
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of CaliforniaSan Diego La Jolla, California 92093-0236
| | - Paul R. Jensen
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of CaliforniaSan Diego La Jolla, California 92093-0236
| | - William Fenical
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of CaliforniaSan Diego La Jolla, California 92093-0236
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Bergonzi MC, Catelani G, D’Andrea F, De Rensis F. The acetonation of methyl 5-C-methoxy-β-d-galactopyranoside1The nomenclature for these bis-glycosides is still somewhat ambiguous, since the introduction of a substituent at C-5, according to the Cahn, Ingold, Prelog rules, may invert its absolute configuration. We have preferred to use the Fischer nomenclature, since it is simpler and directly correlated with the name of the base compound, which undergoes a substitution of a hydrogen atom with a MeO group. This nomenclature has been previously used by us and by other authors, and is reported without change in Chemical Abstract. According to the more recent rules, the name would be methyl (5R)-5-methoxy-α-l-arabino-hexopyranoside.1 with 2,2-dimethoxypropane. Carbohydr Res 1998. [DOI: 10.1016/s0008-6215(98)00211-0] [Citation(s) in RCA: 6] [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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Rychnovsky SD, Rogers BN, Richardson TI. Configurational Assignment of Polyene Macrolide Antibiotics Using the [13C]Acetonide Analysis. Acc Chem Res 1998. [DOI: 10.1021/ar960223n] [Citation(s) in RCA: 203] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Scott D. Rychnovsky
- Department of Chemistry, University of California, Irvine, California 92697-2025
| | - Bruce N. Rogers
- Department of Chemistry, University of California, Irvine, California 92697-2025
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Pham-Huu DP, Petrušová M, BeMiller JN, Köll P, Kopf J, Petruš L. Full acetals of β-d-glycopyranosylnitromethanes and a 1,2-dideoxy-1-nitroalk-1-enitol derived from common hexoses. Carbohydr Res 1998. [DOI: 10.1016/s0008-6215(97)00203-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Besson J, Fayet C, Gelas J. The introduction of an hydrophobic chain on α, α-trehalose via the synthesis of acetals. The detergent properties of these derivatives. Carbohydr Res 1997. [DOI: 10.1016/s0008-6215(97)00154-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Stereoselective syntheses and reactions of chiral oxygenated α,β-unsaturated-γ- and δ-lactones. ACTA ACUST UNITED AC 1996. [DOI: 10.1016/0957-4166(96)00424-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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NMR structural analysis of a tri-O-isopropylidene derivative of d-glycero-d-ido-2-octulose, the major sugar found in the resurrection plant Craterostigma plantagineum. Carbohydr Res 1996. [DOI: 10.1016/0008-6215(96)00106-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Jenkins DJ, Potter BV. A Ca(2+)-mobilising carbohydrate-based polyphosphate: synthesis of 2-hydroxyethyl alpha-D-glucopyranoside 2',3,4-trisphosphate. Carbohydr Res 1996; 287:169-82. [PMID: 8766205 DOI: 10.1016/0008-6215(96)00078-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Two routes to a glucose-based mimic of the second messenger 1D-myo-inositol 1,4,5-trisphosphate related to adenophostin A are described. Fischer glycosidation of D-glucose with allyl alcohol in the presence of a strong cation-exchange resin gave a 7:3 alpha: beta-anomeric mixture of allyl glucopyranosides (5ab) from which the pure alpha anomer 5a was isolated by crystallisation. Treatment of 5ab with 1.05 equiv of dibutyltin oxide followed by 2.1 equiv of benzoyl chloride gave allyl 2,6-di-O-benzoyl-alpha-D-glucopyranoside, which was converted in 3 steps into allyl 2,6-di-O-benzyl-3,4-O-isopropylidene-alpha-D-glucopyranoside (4). Alternatively, treatment of 5a with 2.5 equiv of dibutyltin oxide followed by benzyl bromide gave allyl 2,6-di-O-benzyl-alpha-D-glucopyranoside (9) which was also converted into 4. Compound 4 was elaborated to the phosphorylation precursor 2-hydroxyethyl 2,6-di-O-benzyl-alpha-D-glucopyranoside (12) in a convenient one-pot reaction, and 12 was phosphorylated and deblocked to afford 2-hydroxyethyl alpha-D-glucopyranoside 2',3,4-trisphosphate. The 2,6-di-O-benzyl derivative 9 was converted in high yield into 2,6-di-O-benzyl-3,4-di-O-(p-methoxybenzyl)-D-glucopyranose, a useful intermediate for the synthesis of adenophostin A and related compounds.
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Affiliation(s)
- D J Jenkins
- Department of Medicinal Chemistry, School of Pharmacy and Pharmacology, University of Bath, Claverton Down, Somerset, UK
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Taillefumier C, de Fornel D, Chapleur Y. Design and synthesis of bisubstrate analogues for 3-hydroxy-3-methyl-glutaryl coenzyme a reductase. Bioorg Med Chem Lett 1996. [DOI: 10.1016/0960-894x(96)00077-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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El Ashry ESH, Rashed N, Mousaad A, El Habrouk M. Isopropylidenation of aldosulose bis(phenylhydrazones). Carbohydr Res 1995. [DOI: 10.1016/0008-6215(94)00357-l] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Spectroscopic, crystallographic and computational studies of the formation and isomerization of cyclic acetals and ketals of pentonolactones. ACTA ACUST UNITED AC 1994. [DOI: 10.1016/s0957-4166(00)80400-0] [Citation(s) in RCA: 20] [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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Delaney EJ, Sherrill RG, Palaniswamy V, Sedergran TC, Taylor SP. A reinvestigation of the D-homoannular rearrangement and subsequent degradation pathways of (11 beta,16 alpha)-9-fluoro-11,16,17,21- tetrahydroxypregna-1,4-diene-3,20-dione (triamcinolone). Steroids 1994; 59:196-204. [PMID: 8048152 DOI: 10.1016/0039-128x(94)90028-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The commercial anti-inflammatory drug triamcinolone has been shown to rearrange by similar, but distinct pathways when exposed to certain trace metal ions or to dilute aqueous base. In the presence of aqueous base, the 16-hydroxy-20-keto system undergoes reverse aldol cleavage of the 16,17-bond, followed by aldol cyclization linking C-16 to C-20. This base-catalyzed rearrangement gives a 16 beta,17 alpha-dihydroxy product and a corresponding 16 alpha,17 alpha-dihydroxy product in roughly 4 to 1 ratio. Metal-catalyzed rearrangement provides the 16 alpha,17 alpha-dihydroxy product with extremely high stereoselectivity. Mechanistic models are proposed that help explain the ratio of products isolated from each route. The studies presented suggest that similar forms of rearrangement could be of preparative value in syntheses requiring specific stereochemistry of appropriately substituted bicyclic alpha,beta-dihydroxyketones. Under more vigorous conditions of aqueous base treatment these rearrangement products undergo further decomposition with loss of formaldehyde from the hydroxymethyl group, followed by beta-elimination of water. Reaction of the beta-elimination product with formaldehyde results in the formation of a dimeric species linked by a methylene group.
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Affiliation(s)
- E J Delaney
- Chemical Process Technology Department, Bristol-Myers Squibb Company, New Brunswick, New Jersey 08903
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Barili PL, Catelani G, Fabrizi G, Lamba D. Structure elucidation of methyl 3,4-O-isopropylidene-α- and -β-D-galactopyranosides by NMR and X-ray analysis. Carbohydr Res 1993. [DOI: 10.1016/0008-6215(93)84088-n] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Anderson RJ, Golding BT, Hughes NA. Synthesis of some sugar cabaloximes and a trifluoroacetic acid-induced fragmentation. Carbohydr Res 1993. [DOI: 10.1016/0008-6215(93)84089-o] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Fayet C, Gelas J. Reaction of mono- and oligo-saccharides with keto or ethylenic enol ethers as a route to functionalized acetals and monomers for polymerization. Carbohydr Res 1993. [DOI: 10.1016/0008-6215(93)84213-p] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kuszmann J, Podányi B, Párkányi L. Acetolysis of 2,4-O-benzylidene-D-xylo-hex-5-enitol derivatives. Carbohydr Res 1993. [DOI: 10.1016/0008-6215(93)84208-n] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Valpuesta M, Durante P, López-Herrera FJ. Reaction of monosaccharaide derivatives with stabilized sulfur ylides. A highly stereoselective synthesis for C-glycofuranosides. Tetrahedron 1993. [DOI: 10.1016/s0040-4020(01)80224-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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NMR spectroscopy and conformational analysis of substituted 1,2:5,6-di-O-isopropylidene-α-d-allofuranose derivatives. Carbohydr Res 1992. [DOI: 10.1016/s0008-6215(00)90574-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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A synthesis of 2,3-dideoxy-4,6:7,8-di- O -isopropylidene- d - gluco -oct-2-enono-1,5-lactone. Carbohydr Res 1992. [DOI: 10.1016/0008-6215(92)80048-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ramage R, MacLeod AM, Rose GW. Dioxalanones as synthetic intermediates. Part 6. Synthesis of 3-deoxy-D-manno-2-octulosonic acid (KDO), 3-deoxy-D-arabino-2-heptulosonic acid (DAH) and 2-keto-3-deoxy-D-gluconic acid (KDG). Tetrahedron 1991. [DOI: 10.1016/s0040-4020(01)80993-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Convenient syntheses of 2,3,5-tri-O-benzyl-arabino- and −ribofuranoses via their allyl glycosides. Carbohydr Res 1991. [DOI: 10.1016/0008-6215(91)80132-7] [Citation(s) in RCA: 23] [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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Barili PL, Berti G, Catelani G, D'Andrea F. A simple stereospecific route to 5-C-alkoxy-D-galactopyransides and to L-arabino-hexos-5-uloses. Tetrahedron Lett 1991. [DOI: 10.1016/s0040-4039(00)92130-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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