반응 #41215

반응 방정식

Diacerein

HCl

→

4,5-Dihydroxy-9,10-dioxoanthracene-2-carboxylic acid

용매

Na2CO3

반응 조건

후처리

1. 1
   기타resulting in a red mixture
2. 2
   기타to give a yellow precipitate
3. 3
   여과This was filtered
4. 4
   기타dried in a vac-oven at 50° C. (168 g,>100%)

실험 절차

Diacerein (150 g, 0.41 mol) was stirred in 10% (w/w) Na2CO3 solution (4 L) resulting in a red mixture. After stirring overnight the mixture was acidified to pH2 with 5M HCl solution to give a yellow precipitate. This was filtered and dried in a vac-oven at 50° C. (168 g,>100%).

출처