Ethanol → HCID 12437469、化合物
反応式
S(Cl)(Cl)=O.[Cl:5][C:6]1[CH:11]=[CH:10][C:9]([C:12]2[C:16]([C:17]([OH:19])=[O:18])=[CH:15][S:14][N:13]=2)=[CH:8][CH:7]=1.[CH2:20](O)[CH3:21]>>[Cl:5][C:6]1[CH:7]=[CH:8][C:9]([C:12]2[C:16]([C:17]([O:19][CH2:20][CH3:21])=[O:18])=[CH:15][S:14][N:13]=2)=[CH:10][CH:11]=1参加物
4
反応条件
- 温度
- 90 °C
実験手順
Into a 50-mL round-bottom flask, was placed ethanol (10 mL), thionyl chloride (440 mg, 3.70 mmol, 1.00 equiv), 3-(4-chlorophenyl)-1,2-thiazole-4-carboxylic acid (860 mg, 3.69 mmol, 1.00 equiv). The resulting solution was stirred for 6 h at 90° C. in an oil bath. The resulting mixture was concentrated under vacuum and taken up in 150 mL of dichloromethane, washed with 1×30 mL of brine. The solution was dried over anhydrous sodium sulfate and concentrated under vacuum. This resulted in 0.72 g (75%) of ethyl 3-(4-chlorophenyl)-1,2-thiazole-4-carboxylate as brown oil.