The coupling between C-formyl 2,3:5,6-di-O-isopropylidene-D-mannofuranoside (1) and 2,3,4,6-tetra-O-benzyl-D-galactopyranoside (2) with the protected galactose 6-phosphorane 3 leads to the corresponding olefins which upon hydrogenolysis give β (1 → 6')-linked C-disaccharides 6 and 8 in 56 and 72% yield, respectively.
Synthesis of C-disaccharides from C-formyl glycosides
DONDONI, Alessandro;
1996
Abstract
The coupling between C-formyl 2,3:5,6-di-O-isopropylidene-D-mannofuranoside (1) and 2,3,4,6-tetra-O-benzyl-D-galactopyranoside (2) with the protected galactose 6-phosphorane 3 leads to the corresponding olefins which upon hydrogenolysis give β (1 → 6')-linked C-disaccharides 6 and 8 in 56 and 72% yield, respectively.File in questo prodotto:
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