تفاعل #330303

معادلة التفاعل

2,4-Difluoro-1-nitrobenzene

DIPEA

isopropylamine

→

title compound

المردود 99.0%

(5-Fluoro-2-nitrophenyl)isopropylamine

المردود 99.0%

المذيبات

acetonitrile

ظروف التفاعل

المعالجة

1. 1
   تركيزThe resultant mixture was concentrated in vacuo
2. 2
   أخرىthe residue purified by column chromatography (silica gel, gradient 0-5% EtOAc in cyclohexane)

الإجراء التجريبي

2,4-Difluoro-1-nitrobenzene (2.00 g, 12.57 mmol) was dissolved in acetonitrile (20 mL) and DIPEA (2.2 mL, 12.57 mmol) added, followed by isopropylamine (1.07 mL, 12.57 mmol). The bright yellow mixture was stirred at RT overnight. The resultant mixture was concentrated in vacuo and the residue purified by column chromatography (silica gel, gradient 0-5% EtOAc in cyclohexane) to afford the title compound as a yellow gum (2.1 g, 99%). Contaminated with some unreacted 2,4-difluoro-1-nitrobenzene, but used in the next step without any further purification. 1H NMR (CDCl3, 400 MHz): δ 8.20 (1H, dd, J=9.53, 6.21 Hz), 6.48 (1H, dd, J=11.71, 2.63 Hz), 6.33 (1H, m), 3.80-3.64 (1H, m), 1.33 (6H, d, J=6.36 Hz)

المصدر