C(N(CC)CC)C.[CH:8]([C:11]1[CH:17]=[C:16]([CH:18]([CH3:20])[CH3:19])[CH:15]=[C:14]([CH:21]([CH3:23])[CH3:22])[C:12]=1[NH2:13])([CH3:10])[CH3:9].[Br:24][CH2:25][C:26](Br)=[O:27]>C(Cl)(Cl)Cl>[Br:24][CH2:25][C:26]([NH:13][C:12]1[C:11]([CH:8]([CH3:10])[CH3:9])=[CH:17][C:16]([CH:18]([CH3:20])[CH3:19])=[CH:15][C:14]=1[CH:21]([CH3:23])[CH3:22])=[O:27]Triethylamine (111 mg, 1.1 mmol) was added to a solution of 2,4,6-triisopropylaniline (219 mg, 1.0 mmol) in chloroform (3 ml), then bromoacetyl bromide (222 mg, 1.1 mmol) was gradually dropped thereinto with ice-cooling and the mixture was stirred for 1 hour. The reaction mixture was concentrated and the residue was extracted with ethyl acetate. The organic layer was washed with diluted hydrochloric acid, an aqueous solution of sodium bicarbonate and a saturated sodium chloride solution successively and dried over magnesium sulfate and the solvent was evaporated therefrom. The residue was purified by a silica gel column chromatography (15 g of silica gel; developing solvent, hexane:acetone=5:1) followed by recrystallizing from hexane-ether to provide 275 mg (yield 81%) of 2-Bromo-N-(2,4,6-triisopropylphenyl)acetamide as colorless needles.
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