Die Bindung des Formaldehyds im Lignin

Polysaccharides and Lignin

“…The formaldehyde is obtained from aromatic methylenedioxy groups [condensed piperonyl groups (V), ct. p. 96]. It can be determined as formaldehyde by direct cleavage with mineral acids or as acridan by reaction with aniline (74). Cleavage of the methylenedioxy groups in lignin also occurs through treatment with metallic potassium in liquid ammonia.…”