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N.m.r. spectral study of α- and β-l-arabinofuranosides

✍ Scribed by Kenji Mizutani; Ryoji Kasai; Midori Nakamura; Osamu Tanaka; Hiromichi Matsuura

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
795 KB
Volume
185
Category
Article
ISSN
0008-6215

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✦ Synopsis

Anomeric pairs of L-arabinofuranosides of various aliphatic alcohols were synthesized and then investigated by n.m.r. spectroscopy. The "C-n.m.r. glycosylation shift of these L-arabinofuranosides is very similar to that of L-arabinopyranosides and other glycopyranosides reported previously. The 3JH.1.H_2 value of these a-L-arabinofuranosides is significantly different from that of the fi anomers and can be used for the determination of the anomeric configuration. However, in contrast to the case of glycopyranosides, the 'J,.,,,., values of each anomeric series of L-arabinofuranosides are very similar to each other. Some disaccharides containing an L-arabinofuranoside unit were also investigated by n.m.r. spectroscopy.

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