Studies of Tritylated Pentoses and 6-Deoxyhexoses. III. The O-Tritylation of Methyl α- and β-d-Xylopyranoside

Abstract

Abstract The tritylation of methyl α- and β-d-xylopyranoside afforded three isomeric trityl ethers in both cases. All the ethers were separated by column chromatography in almost pure forms on TLC. Among them, methyl 2-O-trityl-α- and methyl 3-O-trityl-β-d-xylopyranoside were crystallized from aqueous ethanol. The position of the trityl group in each ether was mainly established by the use of 1H NMR with its diacetyl derivative.