Ethyl Acetate → HCID 44623470, compound

Temperature

80 °C

A mixture of 2,4-dichloropyrimidin-5-amine (2.0 g, 12.2 mmol), product of Example 100G (6.04 g, 30.5 mmol), potassium phosphate dibasic (5.31 g, 30.5 mmol), palladium(II) acetate (0.027 g, 0.122 mmol) and dicyclohexyl-(2′,6′-dimethoxy-[1,1′-biphenyl]-2-yl)phosphine (0.050 g, 0.122 mmol) in acetonitrile (30 mL) and water (20 mL) under argon was refluxed at 80° C. for 16 h. The reaction mixture was cooled, diluted with ethyl acetate, and washed with water (2×30 mL) and saturated aqueous brine. The organic layer was dried over sodium sulfate and filtered. The filtrate was concentrated and purified by flash chromatography using 30% ethyl acetate in hexane to afford title compound (0.3 g, 12.32%) as an oil. 1H NMR (300 MHz, CDCl3): δ 7.89 (s, 1H), 7.85 (d, J=11.7 Hz, 1H), 5.69 (d, J=11.7 Hz, 1H), 4.05 (q, J=7.2 Hz, 2H), 3.49 (bs, 2H), 1.37 (t, J=7.5 Hz, 3H).

1. temperatureThe reaction mixture was cooled
2. washwashed with water (2×30 mL) and saturated aqueous brine
3. dry with materialThe organic layer was dried over sodium sulfate
4. filtrationfiltered
5. concentrationThe filtrate was concentrated
6. custompurified by flash chromatography

ORD record

ord-ad8d9f79174d4baebdecd0a3b480dc34

Source dataset

uspto-grants-2014_10

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08859536B2