反应详情

A solution of titanous chloride (about 15%) in about 10% hydrochloric acid (MERCK (MDA) INCL SCHUCHARDT, 71.5 mL) was added to a stirred solution of 1-fluoro-2-[(methylsulfonyl)methyl]-4-nitrobenzene (1.61 g) in THF (80 mL) at room temperature and stirred for 16 hours. By adding 1N sodium hydroxide solution the pH value of the reaction mixture was raised to 10 before it was extracted with ethyl acetate (2×). The combined organic phases were washed with brine, dried over sodium sulfate and concentrated to give the crude title compound (1.64 g) which crystallized from diethylether/Ethyl acetate (1.16 g).

1. temperaturewas raised to 10 before it
2. extractionwas extracted with ethyl acetate (2×)
3. washThe combined organic phases were washed with brine
4. dry with materialdried over sodium sulfate
5. concentrationconcentrated