Decyl and dodecyl beta-D-fructofuranosides are formed from D-fructose and catalysed by boron trifluoride alcoholates, in admixture with the corresponding alpha-D anomers and beta-D-pyranosides. These were separated by chromatography and each of the products was fully characterized by NMR spectroscopy and as tetrakis(p-nitrobenzoates). (C) 1998 Elsevier Science Ltd. All rights reserved.
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
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.
Ferrieres, Vincent; Benvegnu, Thierry; Lefeuvre, Martine, Journal of the Chemical Society. Perkin Transactions 2 (2001), 1999, # 5, p. 951 - 959
作者:Ferrieres, Vincent、Benvegnu, Thierry、Lefeuvre, Martine、Plusquellec, Daniel、Mackenzie, Grahame、Watson, Marcus J.、Haley, Julie A.、Goodby, John W.、Pindak, Ron、Durbin, Mary K.
Decyl and dodecyl beta-D-fructofuranosides are formed from D-fructose and catalysed by boron trifluoride alcoholates, in admixture with the corresponding alpha-D anomers and beta-D-pyranosides. These were separated by chromatography and each of the products was fully characterized by NMR spectroscopy and as tetrakis(p-nitrobenzoates). (C) 1998 Elsevier Science Ltd. All rights reserved.