Zobrazeno 1 - 10 of 12 pro vyhledávání: '"Saskia A. Galema"'
1
Synthesis, purification and liquid-crystalline behaviour of several alkyl 1-thio-D-glycopyranosides
Autor: Saskia A. Galema, Jan B. F. N. Engberts, H.A. van Doren
Publikováno v: Carbohydrate Research, 303(4), 423-434. ELSEVIER SCI LTD
This paper describes the synthesis, purification, and liquid-crystalline behaviour of a series of alkyl 1-thioglycopyranosides. The synthesis of these derivatives was carried out via a Lewis acid mediated coupling of the fully acetylated monosacchari
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f61bb6fdec6ecb6382018d01172186b4
https://doi.org/10.1016/S0008-6215(97)00185-7
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2
Esterification of stearic acid by isomeric forms of butanol in a microwave oven under homogeneous and heterogeneous reaction conditions
Autor: Martine Poux, Farid Chemat, Saskia A. Galema
Publikováno v: Scopus-Elsevier
In this paper the influence of conventional and dielectric heating on the esterification of stearic acid by butanol has been studied. The influences of different isomeric forms of butanol, a catalyst and conditions of reaction (homogeneous versus het
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85e23b1b457120bb2555fd17bce8cd4d
https://doi.org/10.1039/a702219k
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3
Lipase-catalysed esterification of some α-D-glucopyranosides in dry media under focused microwave irradiation
Autor: Saskia A. Galema, Mirjana Gelo-Pujic, André Loupy, Daniel Mathé, Eryka Guibé-Jampel
Publikováno v: J. Chem. Soc., Perkin Trans. 1. :2777-2780
Immobilized Candida antarctica lipase (Novozym 435)-catalysed esterifications of methyl α-D-glucopyranoside 1,α-D-glucose 2 and α,α-trehalose 3 with dodecanoic acid in dry media under focused microwave irradiation and classical heating conditions
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e6f0e9ab4326d937c075e940726276d3
https://doi.org/10.1039/p19960002777
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4
The effect of stereochemistry upon carbohydrate hydration. A molecular dynamics simulation of β-d-galactopyranose and (α,β)-d-talopyranose
Autor: Eduardo Howard, Saskia A. Galema, Jan B. F. N. Engberts, J. Raul Grigera
Publikováno v: Carbohydrate Research. 265(2):215-225
This paper reports a molecular dynamics simulation study of β- d -galactopyranose and (α,β)- d -talopyranose in aqueous solution. Special emphasis was placed on the intramolecular next-nearest neighbour oxygen distances in the carbohydrate molecul
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af317d0e3c4de84d71ef2fc1d3b9a3bc
https://doi.org/10.1016/0008-6215(94)00241-x
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6
Stereochemical aspects of hydration of carbohydrates in aqueous solutions. 2. Kinetic medium effects
Autor: Michael J. Blandamer, Saskia A. Galema, Jan B. F. N. Engberts
Publikováno v: The Journal of Organic Chemistry. 57:1995-2001
Rate constants for the hydrolysis of 1-benzoyl-3-phenyl-1,2,4-triazole in aqueous solutions of carbohydrates have been measured as a function of molality and nature of added mono- and disaccharides. The kinetic medium effects induced by the carbohydr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a99b10d2150bb2ee83848eb82cf7164
https://doi.org/10.1021/jo00033a019
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7
Volumes of activation for dissociation of the cations of [tris-2,2′-bipyridyl]iron(II), [tris-1,10- phenanthroline]iron(II) and of other diimine iron(II) complexes in aqueous solution
Autor: John Burgess, Colin D. Hubbard, Saskia A. Galema
Publikováno v: Polyhedron. 10:703-709
The kinetics of dissociation of several iron(II) diimine complexes by aqueous hydroxide ions have been studied spectrophotometrically at atmospheric pressure and elevated pressures, at 298.2 K. Values of ΔV* are between + 10 and + 16 cm3 mol−1, an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f18a149baa8a9b256ce07d3627475732
https://doi.org/10.1016/s0277-5387(00)83757-2
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8
Quantitative comparison of the effect of methyl D- glycopyranosides as cosolutes on the rates of base hydrolysis and aquation of some iron(II)-diimine complexes
Autor: Michael J. Blandamer, John Burgess, Siobhan P. Milde, Saskia A. Galema, Jan B. F. N. Engberts, Colin D. Hubbard
Publikováno v: Journal of physical organic chemistry, 12(3), 227-232
The kinetics of base hydrolysis and of aquation of some iron(II)–diimine complexes in the presence of stereoisomeric carbohydrates were monitored spectrophotometrically at 25.0°C. In basic aqueous solution dissociation of both Fe(1,10-phenanthroli
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf12fa06b7ef1b5475dce09dc1ded58d
https://research.rug.nl/en/publications/74ac6337-c2a7-420b-804a-9470f6b9b83b
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9
Stereochemical aspects of the hydration of carbohydrates. Kinetic medium effects of monosaccharides on a water-catalyzed hydrolysis reaction
Autor: Jan B. F. N. Engberts, Michael J. Blandamer, Saskia A. Galema
Publikováno v: Journal of the American Chemical Society, 112(26), 9665-9666. AMER CHEMICAL SOC
Herein we report a new endeavor to frame a picture of the hydration of monosaccharides as a function of their stereochemistry. To this end we have measured pseudo-first-order rate constants for the water-catalyzed hydrolysis of 1-benzoyl-3-phenyl-1,2
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::992339d5429ba54b195b20f7335594bf
https://doi.org/10.1021/ja00182a050
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