Toluene → Benzoic acid, 4-(acetylamino)-2-hydroxy-3-(2-propenyl)-, methyl ester
Reaktionsgleichung
C([O:4][C:5]1[CH:14]=[C:13]([NH:15][C:16](=[O:18])[CH3:17])[CH:12]=[CH:11][C:6]=1[C:7]([O:9][CH3:10])=[O:8])C=C.[C:19]1(C)[CH:24]=CC=C[CH:20]=1>>[CH2:24]([C:14]1[C:13]([NH:15][C:16](=[O:18])[CH3:17])=[CH:12][CH:11]=[C:6]([C:7]([O:9][CH3:10])=[O:8])[C:5]=1[OH:4])[CH:19]=[CH2:20]Komponenten
3
Versuchsvorschrift
A solution of 5 g (20.1 mmol) of the allyl ether from Example 19 in 20 ml of toluene is heated at 200° C. in a sealed tube for 24 hours. After cooling to room temperature a precipitate begins forming and the reaction mixture is cooled further to 0° C. The precipitate is filtered off and allowed to air dry, giving methyl 3-allyl-4-acetylaminosalicylate which can be used directly in the next step.
Aufarbeitung
- custombegins forming
- temperaturethe reaction mixture is cooled further to 0° C
- filtrationThe precipitate is filtered off
- customto air dry