Hydrochloric Acid → 2,4-Dimethylpyrimidine-5-carboxylic acid

Reaktionsgleichung

[CH3:1][C:2]1[N:7]=[C:6]([CH3:8])[C:5]([C:9]([O:11]CC)=[O:10])=[CH:4][N:3]=1.[OH-].[Na+].Cl>>[CH3:1][C:2]1[N:7]=[C:6]([CH3:8])[C:5]([C:9]([OH:11])=[O:10])=[CH:4][N:3]=1

Komponenten

Edukt 3

HCID 313Hydrochloric Acid

HCID 14798Sodium Hydroxide

HCID 295888Ethyl 2,4-dimethylpyrimidine-5-carboxylate

Produkt 1

HCID 64875952,4-Dimethylpyrimidine-5-carboxylic acid

Versuchsvorschrift

Intermediate 54 (7.3 g, 40.5 mmol) dissolved in sodium hydroxide solution (4.86 g, 121.6 mmol in 10 ml water) and refluxed. The reaction mixture was cooled to rt and acidified with con HCl to obtain the solid. Solid that obtained was filtered and dried to obtain the title compound quantitatively as an yellow solid. 1H-NMR (δ ppm, DMSO-d6, 400 MHz): 13.5 (bs, 1H), 8.93 (s, 1H), 2.66 (s, 3H), 2.60 (s, 3H).