Diethyl Ether → 2,2,2-Trifluoro-1-(2-methoxyphenyl)ethanone

2 Methoxy Phenyl magnesium bromide (35 ml) was added slowly to a solution of methyl trifluoroacetate (5.0 g) in diethyl ether (100 ml) @ −78° C. The reaction mixture was warmed to room temperature over 12 hrs and the quenched with saturated ammonium chloride solution (100 ml). The mixture was then partitioned between ethyl acetate (500 ml) and water (250 ml) The organics were separated and dried over magnesium sulfate filtered and concentrated in vacuuo. The crude residue was purified by column chromatography on silica gel eluting with 100% hexanes, 90:10 and 80:20, hexanes:ethyl acetate, to afford title compound as a yellow oil. (4.0 g). 1H NMR (CDCl3): δ 3.57 (s, 3H), 7.00 (m, 2H), 7.35 (m, 1H), 7.63, (d, J=2.54 Hz 2H).

1. customthe quenched with saturated ammonium chloride solution (100 ml)
2. customThe mixture was then partitioned between ethyl acetate (500 ml) and water (250 ml) The
3. customorganics were separated
4. dry with materialdried over magnesium sulfate
5. filtrationfiltered
6. concentrationconcentrated in vacuuo
7. customThe crude residue was purified by column chromatography on silica gel eluting with 100% hexanes, 90:10 and 80:20, hexanes

ORD record

ord-1628f31895ca4825ba6c8013fac50920

Source dataset

uspto-grants-2006_12

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07148226B2