Hexuronic acids, methyl ethers

Hexuronic acids, methyl ethers of, 9, 131-148 Hibbert, Harold, obituary of, 16, 1-11 History,... 

Hexuronic acids, methyl ethers of, 9, 131-148 Hibbert, Harold, obituary of, 16, 1-11 Hudson, Claude Silbert, obituary of, 9, xiii-xviii Hyaluronic acid, biosynthesis of, 12, 299-319 Hydrazones, of sugars, 3, 23-44 Hydrocolloids,... 

VI. Tables of Properties of Methyl Ethers of Hexuronic Acids and Their... 

The following Tables (II, III, and IV) record appropriate data and references relating to the methyl ethers of some hexuronic acids and their derivatives. In the case of methyl ethers of aldobiouronic acids (Table V), data have been recorded only for crystalline derivatives. Where uronic acids have been characterized by reduction to the corresponding hexose, reference should be made to the previous articles in this series dealing with the methyl ethers of D-glucose,71 D-galactose,72 and D-mannose.73... 

Analyses of the hemicelluloses of woods indicate the presence of a high proportion of D-xylose residues in association with those of a methyl ether of a hexuronic acid.64 The first evidence for the chemical structure of such wood xylans came from the isolation of xylobiose, xylotriose,65 and the aldobiouronic acid 0-(4-0-methyl-a-D-glucosyluronic)-(l —> 2)-D-xylose acid (IX)22 from partial hydrolyzates of aspen wood. The role of such oligosaccharide fragments in wood xylans became more apparent as the result of a study of a xylan from European beechwood,26 in which it was shown... 

Aspinall, G. 0., The Methyl Ethers of Hexuronic Acids, IX, 131-148 Aspinall, G. 0., The Methyl Ethers of D-Mannose, VIII, 217-230... 

G. O. Aspinall, The methyl ethers of hexuronic acids, Adv. Carbohydr. Chem., 9 (1954) 131-148. 

---