Ammonium Chloride → HCID 90389379, Verbindung

Reaktionsgleichung

CC(C)([O-])C.[K+].Cl[CH2:8][CH:9]1[O:13][N:12]=[C:11]([CH:14]([F:16])[F:15])[CH2:10]1.[NH4+].[Cl-]>C1COCC1>[F:15][CH:14]([F:16])[C:11]1[CH:10]2[CH:9]([CH2:8]2)[O:13][N:12]=1

Komponenten

Versuchsvorschrift

A solution of potassium tert-butoxide (1.0 M in THF, 66.3 mL, 66.3 mmol) was added dropwise to a solution of 5-(chloromethyl)-3-(difluoromethyl)-4,5-dihydroisoxazole (16a rac, 9.0 g, 53.1 mmol) in THF (70 mL) at 0° C. The reaction mixture was stirred for 30 min, then aqueous saturated NH4Cl solution was added slowly. The mixture was extracted with Et2O (2×), and the combined organic extracts were dried over MgSO4. The filtrate was concentrated under reduced pressure. The residue was purified by silica gel chromatography (0-60% Et2O/pentane gradient) to give the title compound as an oil (5.29 g, 75% yield)