2-Methyl-1-(4-methylphenyl)propan-2-amine → Tert-butyl 2-(2-methyl-1-(p-tolyl)propan-2-yl)hydrazinecarboxylate
Reaktionsgleichung
[CH3:1][C:2]([NH2:12])([CH3:11])[CH2:3][C:4]1[CH:9]=[CH:8][C:7]([CH3:10])=[CH:6][CH:5]=1.ClC(Cl)(Cl)C1O[N:16]1[C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19]>C(Cl)Cl>[CH3:11][C:2]([NH:12][NH:16][C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])([CH3:1])[CH2:3][C:4]1[CH:9]=[CH:8][C:7]([CH3:10])=[CH:6][CH:5]=1Komponenten
4
Versuchsvorschrift
2.40 g (14.7 mmol) of separately prepared 2-methyl-1-p-tolylpropan-2-amine was dissolved in 20 mL of methylene chloride, and 2.60 g (10.0 mmol) of separately prepared t-butyl 3-(trichloromethyl)-1,2-oxaziridine-2-carboxylate in 10 mL of methylene chloride was added under cooling with ice. The reaction solution was stirred under cooling with ice for 30 minutes and at room temperature for 1 hour, and the methylene chloride was removed under reduced pressure. The resulting residue was purified by silica gel column chromatography using hexane-ethyl acetate (100:0 to 0:100) as the eluent to give 1.61 g of the desired product as colorless crystals.