Gurdial Singh, H. Vankayalapati
Jul 16, 2001
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Influential Citations
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Journal
Tetrahedron-asymmetry
Abstract
Abstract α- and β-Glycosyl cyanides, per- O -acetyl-1,2- O -1-cyanoethylidenes and C -allyl glycopyranosides were efficiently prepared by treatment of 2,3,4-tri- O -acetyl-α,β- l -rhamno-, l -fuco- and 2,3,4,6-tetra- O -acetyl-α,β- d -galactopyranosyl propane-1,3-diyl phosphates with trimethylsilyl cyanide (TMSCN) and allyltrimethylsilane in the presence of trimethylsilyl triflate (TMSOTf). Similarly 2,3,4,6-tetra- O -benzyl-α,β- d -manno- and d -glucopyranosyl propane-1,3-diyl phosphates were employed in the synthesis of C -glycosides.