Tetrahedron Letters p. 4285 - 4286 (1997)
Update date:2022-08-03
Topics:
Wallberg, Andreas
Weigelt, Dirk
Falk, Niklas
Magnusson, Goeran
The novel linker 4 was synthesized in three steps from hex-5-enyldimethylchlorosilane and glycosylated with 2,3,4,6-tetra-O-benzoyl-α-D-galactopyran trichloroacetimidate to give the corresponding linker β-glycoside 5 (77%). Treatment of 5 with acetic anhydride and BF3·OEt2 gave 1-O-acetyl-2,3,4,6-tetra-O-benzonyl-β-D-galactose (~90%), devoid of the α-anomer.
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