反应详情

To a stirring mixture of 8-(thiophen-2-yl)-octan-1-ol (0.132 g, 0.622 mmol) and triethylamine (0.126 g, 1.245 mmol) in methylene chloride (5 ml) at 0° under argon was added methanesulfonyl chloride (0.107 g, 0.933 mmol). After stirring for 2 hours at 0° the reaction was quenched with water and the organic layer was washed with 10% hydrochloric acid, saturated sodium bicarbonate, water, saturated sodium chloride solution, dried over magnesium sulfate, filtered and concentrated to give a pale oil. To this oil in acetone (2 ml) was added lithium bromide (0.216 g, 2.49 mmol) and the mixture was refluxed for 15 hours. The acetone was evaporated and the residue was taken up in ethyl ether, washed with 10% hydrochloric acid, saturated sodium bicarbonate, water, saturated sodium chloride, dried over magnesium sulfate, filtered through silica and concentrated to give the title compound which was carried on without further purification.

1. customwas quenched with water
2. washthe organic layer was washed with 10% hydrochloric acid, saturated sodium bicarbonate, water, saturated sodium chloride solution
3. dry with materialdried over magnesium sulfate
4. filtrationfiltered
5. concentrationconcentrated
6. customto give a pale oil
7. temperaturethe mixture was refluxed for 15 hours
8. customThe acetone was evaporated
9. washwashed with 10% hydrochloric acid, saturated sodium bicarbonate, water, saturated sodium chloride
10. dry with materialdried over magnesium sulfate
11. filtrationfiltered through silica
12. concentrationconcentrated