تفاعل #709247

معادلة التفاعل

glycerol

erythritol

→

D-glucose

المذيبات

sulfuric acid

ظروف التفاعل

المعالجة

1. 1
   أخرىto obtain
2. 2
   أخرىHydrolysis of the insoluble substance

الإجراء التجريبي

Separately, the polyol-type ganoderan was kept at 90°-100° C. for 1-2 hours in 0.05-0.1M sulfuric acid to obtain, as well as glycerol and erythritol, an insoluble substance. Hydrolysis of the insoluble substance gave D-glucose as sole product, while hydrolysis of a methylated polyol-type ganoderan gave a substantial amount of 2,4,6-tri-O-methyl-D-glucose. By exposure to the action of exo-beta-1,3 glucanase, only D-glucose was obtained. These facts confirm that the backbone of ganoderan consists of beta-1,3-linked D-glucopyranose residues.

المصدر