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A convenient method for the preparation of all of the partially methylated derivatives of methyl α-d-mannopyranoside and α-d-galactopyranoside

✍ Scribed by Tomohiro Mega; Atsushi Nishikawa; Tokuji Ikenaka

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
471 KB
Volume
112
Category
Article
ISSN
0008-6215

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✦ Synopsis

Methylation analysis is still one of the most important methods for the structure analysis of oligosac~harides I. Gas chromatography-mass spe~tromet~, as well as 13C-and 'H-n.m.r. spectroscopy, is commonly used for identification of partially methylated monosaccharides. This requires numerous standard methyl derivatives, which are not easy to prepare by conventional techniques of synthesis. In this paper, we described a convenient method for preparing all of the partially methylated derivatives of methyl a-D-mannopyranoside and a-D-galactopyranoside by partial methylation of the methyl glycosides, followed by separation of the derivatives by high-pressure, liquid chromatography.

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