3-(Trifluoromethyl)benzylamine → 4-Pyridinecarboxamide, 2-bromo-N-[[3-(trifluoromethyl)phenyl]methyl]-

Temperatur

25 °C

Into a 250-mL round bottom flask, was placed a solution of 2-bromoisonicotinic acid (1.4 g, 6.93 mmol, 1.20 equiv) in dichloromethane (50 mL), EDC.HCl (1.64 g, 8.56 mmol, 1.50 equiv), 4-dimethylaminopyridine (1.04 g, 8.51 mmol, 1.50 equiv), and 3-(trifluoromethyl)benzylamine (1.0 g, 5.71 mmol, 1.00 equiv). The resulting solution was stirred overnight at 25° C. in an oil bath. The resulting solution was diluted with 100 mL of dichloromethane. The resulting mixture was washed with 2×50 mL of sat. NH4Cl, 2×50 mL of sat. Na2CO3, and 2×50 mL of brine. The mixture was dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was applied onto a silica gel column and eluted with ethyl acetate/petroleum ether (1:10-1:5). The product was obtained as 1.2 g (59%) of a white solid.

1. customInto a 250-mL round bottom flask, was placed
2. washThe resulting mixture was washed with 2×50 mL of sat. NH4Cl, 2×50 mL of sat. Na2CO3, and 2×50 mL of brine
3. dry with materialThe mixture was dried over anhydrous sodium sulfate
4. concentrationconcentrated under vacuum
5. washeluted with ethyl acetate/petroleum ether (1:10-1:5)

ORD-Eintrag

ord-1a48c71398a14c3da9c2febaa84f45e7

Quelldatensatz

uspto-grants-2016_04

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US09301951B2