Preparation and catalytic hydrogenolysis of some ω-halogenoalkyl β-<i>D</i>
-fructopyranosides; a convenient route to simple alkyl β-<i>D</i>
-fructopyranosides
作者:Harry W. C. Raaijmakers、Susan M. Eveleens、Esther G. Arnouts、Binne Zwanenburg、Gordon J. F. Chittenden
DOI:10.1002/recl.19931120906
日期:——
The acid-catalysed reactions of D-fructose, sucrose and inulin with ω-halogenoalkyl alcohols yield the corresponding β-D-fructopyranosides. Catalytichydrogenolysis of these glycosides provides a simpleroute to some crystalline alkyl β-D-fructopyranosides of potential biological interest.
Mcm-41 Materials as Catalysts for the Synthesis of Alkyl Fructosides
作者:A.M. van der Heijden、F. van Rantwijk、H. van Bekkum
DOI:10.1080/07328309908543987
日期:1999.1.1
derivatives of fructose has lagged because no efficient synthesis was available. We have found that mesoporousmaterials of the MCM-41 type are active and selective catalysts for the alkylation of fructose. Quantitative yields were obtained in the reaction of fructose with lower alcohols, up to C4. For long chain alcohols yields were moderate but the alkyl fructopyranosides could be easily purified. The other
Verhart, Cor G.J.; Fransen, Carel T.M.; Zwanenburg, Binne, Recueil des Travaux Chimiques des Pays-Bas, 1996, vol. 115, # 2, p. 133 - 139
作者:Verhart, Cor G.J.、Fransen, Carel T.M.、Zwanenburg, Binne、Chittenden, Gordon J.F.
DOI:——
日期:——
Synthesis of Alkyl Fructosides Using Solid Acid Catalysts. Part I: Silica-Alumina Cracking Catalysts
作者:A. T.J.W. de Goede、M. P.J. van Deurzen、I. G. van der Leij、A. M. van der Heijden、J. M.A. Baas、F. van Rantwijk、H. van Bekkum
DOI:10.1080/07328309608005657
日期:1996.4
Silica-alumina cracking catalysts and acid clays efficiently catalyze the 2-O-alkylation of D-fructose with long chain alcohols. Under the conditions applied virtually no degradation of fructose is observed. L-Sorbose and the aldopentoses also undergo silica-alumina-catalyzed alkylation. The rate of conversion is related to the solubility of the monosaccharide and the stability of the intermediate oxocarbenium ion. Best results in fructose alkylation are obtained by applying a recirculation method with butyl fructoside as soluble intermediate.