Nitric Acid → Methyl 2-(4-chloro-3-nitrophenyl)-2-methylpropionate

反応式

[N+:1]([O-:4])(O)=[O:2].S(=O)(=O)(O)O.[Cl:10][C:11]1[CH:16]=[CH:15][C:14]([C:17]([CH3:23])([CH3:22])[C:18]([O:20][CH3:21])=[O:19])=[CH:13][CH:12]=1>>[Cl:10][C:11]1[CH:12]=[CH:13][C:14]([C:17]([CH3:23])([CH3:22])[C:18]([O:20][CH3:21])=[O:19])=[CH:15][C:16]=1[N+:1]([O-:4])=[O:2]

参加物

反応物 3

HCID 944Nitric Acid

HCID 1118Sulfuric Acid

HCID 22709436Methyl 2-(4-chlorophenyl)-2-methylpropanoate

生成物 1

HCID 22709425Methyl 2-(4-chloro-3-nitrophenyl)-2-methylpropionate収率 100%

実験手順

After dropwise addition of 40.0 g of concentrated nitric acid to 90.7 g of concentrated sulfuric acid under ice cooling, 62.3 g of methyl 2-(4-chlorophenyl)-2-methylpropionate was added dropwise. The resulting mixture was stirred at room temperature for 30 minutes. The reaction mixture was poured into ice water, followed by extraction with ethyl acetate. The organic layer was washed successively with water and brine, dried over anhydrous sodium sulfate and evaporated under reduced pressure, whereby 75.5 g of the title compound was obtained.