Attempted degradations of spruce formaldehyde- periodate lignin.

• Main Author: Das, Bejoy. S.
• Other Authors: Purves, C. (Supervisor)
• Format: Others
• Language: en
• Published: McGill University 1964
• Subjects: Chemistry.
• Online Access: http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115402

Previous workers observed that wood lignin, when condensed with formaldehyde in 72% sulfuric acid, gave a formaldehyde lignin in which about one-fourth of the carbon atoms were derived from formaldehyde. Reactive sites in the lignin, which normally promoted condensation to insoluble Klason lignin in the strong acid, appeared to be preferentially substituted by formaldehyde in such a way that the formaldehyde lignin was soluble in water and other liquids. The object of the present work was to degrade the formaldehyde lignin in the hope of identifying some molecular fragments indicative of its structure.