反应详情

While 50 g of 4-(5-chloro-pentoxy)-benzonitrile (8) prepared in Example 5 were added to 500 ml of 2-butanone and stirred, 167 g of sodium iodide were added. Subsequently, the reaction temperature was gradually increased and stirring was continued at 70-80° C. for 6 hr. After the reaction was completed, the reaction temperature was decreased to room temperature, and the resultant reaction mixture was added with 1 L of ethylacetate, and then washed with water and brine. The ethylacetate layer was dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residual solution was crystallized with methylalcohol, thus obtaining 69.7 g (yield: 99%) of a title compound as a white solid.

1. temperatureSubsequently, the reaction temperature was gradually increased
2. stirringstirring
3. customwas decreased to room temperature
4. customthe resultant reaction mixture
5. washwashed with water and brine
6. dry with materialThe ethylacetate layer was dried over anhydrous magnesium sulfate
7. concentrationconcentrated under reduced pressure
8. customThe residual solution was crystallized with methylalcohol