Conversion of fructose into a building block for the synthesis of carbocyclic mannose mimics
作者:Clinton Ramstadius、Mikael Boklund、Ian Cumpstey
DOI:10.1016/j.tetasy.2011.02.013
日期:2011.2
Fructose was converted into C-1 diastereomeric carbocyclic building blocks resembling mannose using ruthenium-catalysed ring-closing metathesis as a key step. The potential use of the compounds in the synthesis of valienamine pseudodisaccharides is demonstrated using Mitsunobu coupling chemistry directly between a carbohydrate sulfonamide and the carbasugar C-1 alcohols. (C) 2011 Elsevier Ltd. All rights reserved.
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.