Reaktion #2063067

Reaktionsgleichung

methanol

3,6-dioxaoctanedioic acid

sodium bicarbonate

→

3,6-Dioxaoctanedioic Acid Dimethylester

Reaktionsbedingungen

Aufarbeitung

1. 1
   workup.ADDITIONwas added
2. 2
   FiltrationThe mixture was filtered
3. 3
   Sonstigeto remove solids
4. 4
   workup.ADDITIONTo the liquor was added an additional 10 g of sodium bicarbonate
5. 5
   workup.STIRRINGthis mixture was stirred overnight
6. 6
   FiltrationThe mixture was again filtered
7. 7
   workup.DISTILLATIONthe liquor was fractionally distilled

Vorschrift

Esterification of the crude 3,6-dioxaoctanedioic acid was accomplished as follows: To the reaction flask containing 36 g of the crude diacid, was added 110 ml of methanol. This was stirred for 3 days at room temperature after which 15 g of sodium bicarbonate was added and stirred overnight. The mixture was filtered to remove solids. To the liquor was added an additional 10 g of sodium bicarbonate; this mixture was stirred overnight. The mixture was again filtered; the liquor was fractionally distilled.

Quelle