反应详情

A room temperature solution, under argon, of 4.22 ml of 1.0M lithium aluminum hydride in tetrahydrofuran is treated, dropwise, with 0.876 g of product from Example 199 in 3 ml of diethyl ether; during which time the reaction refluxes gently. After complete addition, the reaction is stirred at room temperature for 2 hour. The reaction mixture is quenched with 1 ml of water, 10.5 ml of 1.0N sodium hydroxide and 2.0 ml of water. The solid white precipitate formed is collected and washed with large volumes of diethyl ether. The diethyl ether layer is concentrated in vacuo to give 0.889 g of the desired product.

1. additionAfter complete addition
2. customThe reaction mixture is quenched with 1 ml of water, 10.5 ml of 1.0N sodium hydroxide and 2.0 ml of water
3. customThe solid white precipitate formed
4. customis collected
5. washwashed with large volumes of diethyl ether
6. concentrationThe diethyl ether layer is concentrated in vacuo