反应详情

To a mixture of lithium aluminum hydride (3.3 g, 69 mmol) and tetrahydrofuran (100 mL) was added aluminum chloride (13 g, 96 mmol) at 0° C., which was stirred for 1 hour at room temperature. A mixture of 4-((5-chloro-furan-2-yl)-hydroxy-methyl)-benzonitrile (3.2 g) described in Manufacturing Example 62-1-1 and tetrahydrofuran was added dropwise into the reaction mixture, and stirred for 1 hour at room temperature. A 28% aqueous ammonia solution was added dropwise into the reaction mixture at 0° C. to quench the excess reagent. The reaction mixture was allowed to room temperature and filtered through a Celite pad. The solvent was evaporated from the filtrate under a reduced pressure, and the residue was filtered after addition of diethyl ether. The filtrate was concentrated under a reduced pressure to obtain the title compound (2.6 g) as a crude product.

1. additionwas added dropwise into the reaction mixture
2. stirringstirred for 1 hour at room temperature
3. customto quench the excess reagent
4. customwas allowed to room temperature
5. filtrationfiltered through a Celite pad
6. customThe solvent was evaporated from the filtrate under a reduced pressure
7. filtrationthe residue was filtered
8. additionafter addition of diethyl ether
9. concentrationThe filtrate was concentrated under a reduced pressure