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The effect of O-methylation on chemical shifts in the 1H- and 13C-n.m.r. spectra of cyclic polyols

✍ Scribed by Stephen J. Angyal; Léon Odier

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
361 KB
Volume
123
Category
Article
ISSN
0008-6215

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✦ Synopsis

The 'H-and "C-n.m.r.

spectra of seven in&lo1 methyl ethers were recorded and assigned.

They were classified into five types, and the effect of 0methyl&ion on the chemical shifts of each type is discussed. NOTE ADDED IN PROOF Type F, not encountered in our work, occurs in 1,6-anhydro-3-O-methyl-& D-glucopyranose; the y-effect is -3.6 and -3.7 p.p,m. The pyranoid chair is, however, somewhat distorted in this compound.

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