258343-95-2Relevant articles and documents
Aldol reactions on 1-deoxy-3,4:5,6-di-O-isopropylidene-L-fructose as a route to higher-carbon carbohydrates.
Haines,Lamb
, p. 323 - 339 (2000)
With a view to preparing higher-carbon carbohydrates, crossed-aldol reactions of the methyl ketone 1-deoxy-3,4:5,6-di-O-isopropylidene-L-fructose with a representative series of aldehydes have been investigated, and the feasibility has been demonstrated o
Aldol reactions on 1-deoxy-3,4:5,6-di-O-isopropylidene-L-fructose as a route to higher-carbon carbohydrates
Haines, Alan H.,Lamb, Andrew J.
, p. 197 - 213 (1999)
With a view to preparing higher-carbon carbohydrates, crossed-aldol reactions of the methyl ketone 1-deoxy-3,4:5,6-di-O-isopropylidene-L-fructose with a representative series of aldehydes have been investigated, and the feasibility has been demonstrated o
The nitrile oxide-isoxazoline approach to 11-carbon monosaccharides. Conversion of 3-(tetritol-1-yl)-5-(tetrofuranos-4-yl)-2-isoxazolines into 6-deoxyundecoses
McGhie, Karen E.,Paton, R. Michael
, p. 24 - 41 (2007/10/03)
Hydrogenolysis of (5R)-3-(1,2:3,4-di-O-isopropylidene-D-arabino-tetritol-1-yl)-5-(3-O-benzyl-1,2-O-isopropylidene-α-D-xylo-tetrofuranos-4-yl)-4,5-dihydroisoxazole afforded the 7-ulose derivative, from which 6-deoxy-D-gluco-D-gluco- and D-manno-D-gluco-undecose derivatives 17 and 18 were prepared by reduction with sodium borohydride or L-Selectride. The configuration of the new stereogenic centre (C-7) in compounds 17 and 18 was established by NMR analysis of their 5,7-O-isopropylidene derivatives. 6-Deoxy-L-manno-D-gluco- and L-gluco-D-gluco-undecose analogues 19 and 20 were prepared similarly from the isomeric 3-(L-arabino-tetritolyl)-4,5-dihydroisoxazole. Removal of the isopropylidene protecting groups from compounds 17 and 20 yielded 3-O-benzyl-6-deoxy-D-gluco- and L-manno-D-gluco-undecopyranoses, which were characterised as their octa-acetate derivatives. The corresponding reaction sequence from 3-(D- and L-arabino-tetritol-1-yl)-5-(2,3-O-isopropylidene-3-O-methyl-α-D-lyxo-tetrofuranos-4-yl)-4,5-dihydroisoxazoles afforded 6-deoxy-D/L-gluco-D-manno and D/L-manno-D-manno-undecose derivatives. Copyright (C) 1999 Elsevier Science Ltd.