N,N-Dimethylaniline → Butanoic acid, 4-chloro-, 1,1-dimethylethyl ester

Reaktionsgleichung

[Cl:1][CH2:2][CH2:3][CH2:4][C:5](Cl)=[O:6].CN(C)C1C=CC=CC=1.[C:17]([OH:21])([CH3:20])([CH3:19])[CH3:18]>C(OCC)C>[Cl:1][CH2:2][CH2:3][CH2:4][C:5]([O:21][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:6]

Komponenten

Versuchsvorschrift

A mixture of 4-chlorobutyryl chloride (93 g, 0.66 mol), N,N-dimethylaniline (80 g, 0.66 mol) and tert-butanol (0.66 mol) in ethyl ether (100 mL) was refluxed for 5 h. The reaction was cooled, diluted with ether and washed with water, 10% citric acid, saturated NaCl and dried over Na2SO4. Crude product obtained after evaporation of the solvent was distilled under vacuum (10 mmHg). Pure product (79 g, 67%) boiling at 57-58° C. was collected. 1H NMR (DMSO-d6) δ 3.64 (t, J=7 Hz, 2H), 2.35 (t, J=7 Hz, 2H), 1.93 (q, 2H), 1.41 (s, 9H).