2-Aminothiazole → 2-(2-AMINO-1,3-THIAZOL-5-YL)-1,1,1,3,3,3-HEXAFLUOROPROPAN-2-OL
反応式
[NH2:1][C:2]1[S:3][CH:4]=[CH:5][N:6]=1.O.O.O.[F:10][C:11]([F:19])([F:18])[C:12]([C:14]([F:17])([F:16])[F:15])=[O:13]>C(OCC)(=O)C>[NH2:1][C:2]1[S:3][C:4]([C:12]([OH:13])([C:14]([F:17])([F:16])[F:15])[C:11]([F:19])([F:18])[F:10])=[CH:5][N:6]=1参加物
4
反応条件
- 温度
- 100 °C
実験手順
A catalytic amount of molecular sieves powder (4A) was added to a mixture of 2-aminothiazole 200 mg (2 mmol) and hexafluoroacetone trihydrate (880 mg, 4 mmol). The mixture was heated at 100° C. for 8 h. Ethyl acetate was added and the mixture was filtered. Organic solvents were evaporated under reduced pressure. The residue was recrystallized in THF and hexanes to afford the title product (389 mg) as a white solid. 1H NMR (DMSO-d6) δ7.12 (s, 1H), 7.45 (brs, 2H), 8.85 (s, 1H); ESIMS: m/z 267 (M+H).