Ethyl (chloroformyl)acetate → HCID 135966498, Verbindung
Reaktionsgleichung
[CH3:1][C:2]1[NH:11][C:10](=[O:12])[C:9]2[C:4](=[CH:5][CH:6]=[C:7]([CH2:13][N:14]([CH2:18][CH3:19])[C:15]([NH2:17])=[S:16])[CH:8]=2)[N:3]=1.[CH:20]([CH:22](Cl)[C:23]([O:25][CH2:26][CH3:27])=[O:24])=O>CN(C)C=O>[CH3:1][C:2]1[NH:11][C:10](=[O:12])[C:9]2[C:4](=[CH:5][CH:6]=[C:7]([CH2:13][N:14]([C:15]3[S:16][C:22]([C:23]([O:25][CH2:26][CH3:27])=[O:24])=[CH:20][N:17]=3)[CH2:18][CH3:19])[CH:8]=2)[N:3]=1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 100 °C
Versuchsvorschrift
A mixture of the thiourea (4.67 g), ethyl formylchloroacetate (Archiv der Pharmazie, 1953, 286, 494: 2.55 g) and dimethylformamide (25 ml) was stirred and heated to 100° C. for 1 hour. The mixture was cooled, filtered and the filtrate was evaporated. The residue was partitioned between methylene chloride and a saturated aqueous sodium bicarbonate solution. The organic solution was dried over sodium sulphate, filtered and evaporated. The residue was purified by trituration in ethyl acetate to give ethyl 2-[N-(3,4-dihydro-2-methyl-4-oxoquinazolin-6-ylmethyl) N-ethylamino]thiazole-5-carboxylate (1.37 g), m.p. 188°-192° C.