反应详情

Several scoops of Raney nickel were added to 28.6 g of 2-{(methylthio)methyl}-6-(trifluoromethyl)aniline (Example 1A) in 50 ml of absolute ethanol. The reaction slurry was stirred at room temperature and the progress of the reaction was followed by gas-liquid chromatography (GLC). Periodically, additional Raney nickel was added to the reaction slurry. The reaction was allowed to stir overnight. Most but not all of the starting material had reacted. The Raney nickel was removed by filtration, the filter cake rinsed with 1200 ml of absolute ethanol and the filtrate concentrated. The concentrate was dissolved in 100 ml of ethyl acetate, washed with 70 ml of water, dried with magnesium sulfate, filtered, and concentrated to yield 19.2 g of the crude product as a yellow oil which was distilled at 30-40 torr, to give 6.2 g of the desired product at 93°-108° C. in 80% purity.

1. stirringto stir overnight
2. customMost but not all of the starting material had reacted
3. customThe Raney nickel was removed by filtration
4. washthe filter cake rinsed with 1200 ml of absolute ethanol
5. concentrationthe filtrate concentrated
6. dissolutionThe concentrate was dissolved in 100 ml of ethyl acetate
7. washwashed with 70 ml of water
8. dry with materialdried with magnesium sulfate
9. filtrationfiltered
10. concentrationconcentrated
11. customto yield 19.2 g of the crude product as a yellow oil which
12. distillationwas distilled at 30-40 torr