Aluminum(III) Chloride → N-(4,4-dimethyl-2-oxo-1,2,3,4-tetrahydroquinolin-7-yl)acetamide

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Reaction Conditions

Reaction Steps

The mixture of 3,3-dimethyl-6-nitroindoline 3-Methyl-but-2-enoic acid (3-acetylamino-phenyl)-amide (1.05 g, 4.52 mmol) and AlCl3 (5.0 g, 37.5 mmol, Aldrich, 99.99%) in 50 ml of anhydrous chlorobenzene was stirred at 120° C. (oil bath temperature) under N2 overnight, cooled to RT, poured into 10 ml of ice cold HCl, stirred for 30 min, and extracted with EtOAc. The organic portions were combined, washed with brine, dried with Na2SO4, filtered, condensed, and purified by flash column chromatography (1% of MeOH in CH2Cl2). The titled compound was obtained as an off-white solid. MS (ES+): 233.2 (M+H)+. Calc'd for C13H16N2O2—232.28.

Provenance & Evidence