4-Isopropylaniline → 4-Isopropyl-N-(2,2-diethoxyethyl)aniline

Reaktionsgleichung

[CH:1]([C:4]1[CH:10]=[CH:9][C:7]([NH2:8])=[CH:6][CH:5]=1)([CH3:3])[CH3:2].[CH2:11]([O:13][CH:14]([O:17][CH2:18][CH3:19])[CH2:15]Br)[CH3:12].C(=O)(O)[O-].[Na+]>C(O)C>[CH:1]([C:4]1[CH:10]=[CH:9][C:7]([NH:8][CH2:15][CH:14]([O:17][CH2:18][CH3:19])[O:13][CH2:11][CH3:12])=[CH:6][CH:5]=1)([CH3:3])[CH3:2]

Komponenten

Versuchsvorschrift

A solution of 4-isopropylaniline (7.6 mL, 56 mmol), 2-bromoacetaldehyde diethyl acetal (5.5 mL, 36 mmol) and sodium bicarbonate (4.8 g, 57 mmol) in ethanol (60 mL) was stirred at reflux for 3 days under argon. After cooling to room temperature, the ethanol was removed in vacuo and the product was partitioned between ether and water, washed sequentially with water and brine, and dried over sodium sulfate. After removal of the solvent in vacuo, flash chromatography (silica, 10% ethyl acetate in hexanes) yielded 4-isopropyl-N-(2,2-diethoxyethyl) aniline (8.23 g, 90%).