تفاعل #961957

معادلة التفاعل

water

3-(3,5-dichlorophenyl)-3-(trifluoromethyl)pyrrolidine

2-bromo-4-fluoro-1-nitrobenzene

potassium carbonate

→

1-(3-bromo-4-nitrophenyl)-3-(3,5-dichlorophenyl)-3-(trifluoromethyl)pyrrolidine

المردود 70.9%

المذيبات

1-methyl-2-pyrrolidinone

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةthe mixture was heated
2. 2
   درجة الحرارةThe mixture was cooled to room temperature
3. 3
   استخلاصwas extracted twice with ethyl acetate
4. 4
   غسيلwhich was then washed with water
5. 5
   تجفيفdried over anhydrous magnesium sulfate
6. 6
   ترشيحAfter the drying agent was filtered off
7. 7
   workup.DISTILLATIONthe solvent was distilled away under the reduced pressure
8. 8
   أخرىthe residue was then purified by silica gel chromatography

الإجراء التجريبي

To the solution of 3-(3,5-dichlorophenyl)-3-(trifluoromethyl)pyrrolidine (1.3 g) and 2-bromo-4-fluoro-1-nitrobenzene (1.0 g) in 1-methyl-2-pyrrolidinone was added potassium carbonate (1.3 g), and the mixture was heated with stirring at 100° C. for 3 hours. The mixture was cooled to room temperature and then poured into water, which was extracted twice with ethyl acetate. The organic layer was combined, which was then washed with water and dried over anhydrous magnesium sulfate. After the drying agent was filtered off, the solvent was distilled away under the reduced pressure, and the residue was then purified by silica gel chromatography to yield 1-(3-bromo-4-nitrophenyl)-3-(3,5-dichlorophenyl)-3-(trifluoromethyl)pyrrolidine (1.56 g). 1H-NMR (CDCl3) δ: 2.53-2.66 (1H, m), 2.89-2.97 (1H, m), 3.51-3.71 (2H, m), 3.83 (1H, d), 4.16 (1H, d), 6.53 (1H, dd), 6.84 (1H, d), 7.27 (2H, br s), 7.42 (1H, t), 8.07 (1H, d).

المصدر