反应详情

4.4 g (0.02 mole) of 2,3-dihydro-2,2-dimethylbenzofuran-7-yl N-methyl-carbamate, 5.1 g (0.02 mole) of bis(ethoxycarbonylmethyl)aminosulfenyl chloride obtained in Example 1 or 2, and 4.7 g (0.06 mole) of pyridine were dissolved in 35 ml of methylene chloride, and the resulting solution was stirred for 30 hours at 30° to 35° C. After completion of the reaction, the reaction solution was washed successively with water, diluted hydrochloric acid and water. The methylene chloride layer was dried over sodium sulfate and concentrated under reduced pressure to obtain an oily product. Yield: 7.5 g (85.2%).

1. customAfter completion of the reaction
2. washthe reaction solution was washed successively with water, diluted hydrochloric acid and water
3. dry with materialThe methylene chloride layer was dried over sodium sulfate
4. concentrationconcentrated under reduced pressure
5. customto obtain an oily product