Triethylamine → HCID 86658823, Verbindung

To a stirred solution of 8-bromo-5-quinolinecarboxaldehyde oxime (i.e. the product from Step C) (1.7 g, 6.8 mmol) in N,N-dimethylformamide (13.0 mL) was added N-chlorosuccinimide (1.24 g, 9.3 mmol). The reaction mixture was stirred for 1 h at room temperature, and then a solution of 1,3-dichloro-5-[1-(trifluoromethyl)ethenyl]benzene (i.e. the product from Example 1, Step B) (1.96 g, 8.1 mmol) and triethylamine (2.86 mL, 20.4 mmol) in N,N-dimethylformamide (7.0 mL) was added. After stirring for additional 12 h at room temperature, the reaction mixture was diluted with water and extracted with ethyl acetate. The organic layer was washed with brine, dried (Na2SO4), and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel using hexanes/ethyl acetate as eluent to afford the title compound as a white solid (2.0 g, 61% yield).

1. stirringAfter stirring for additional 12 h at room temperature
2. extractionextracted with ethyl acetate
3. washThe organic layer was washed with brine
4. dry with materialdried (Na2SO4)
5. concentrationconcentrated under reduced pressure
6. customThe residue was purified by column chromatography on silica gel

ORD-Eintrag

ord-7d3cf67c76f3406393e51eda03b5cdba

Quelldatensatz

uspto-grants-2012_07

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US08231888B2