反应详情

温度

0 °C

A suspension of 1.40 g (36.8 mmol) of lithium aluminum hydride in 150 ml of tetrahydrofuran was stirred at 0° C. A solution of 13.0 g (49.0 imol) of 4-(tert-butoxycarbonylaminomethyl)benzoate in 50 ml of tetrahydrofuran was dropwise added slowly to the suspension. After completion of the dropwise addition, the solution was heated to reflux for 2 hours and then cooled to 0° C. After 20 ml of 50% tetrahydrofuran was dropwise added to the reaction mixture, 100 ml of ethyl acetate was added thereto. Insoluble matters were filtered off and the resulting filtrate was concentrated under reduced pressure. The concentrate was isolated and purified by silica gel column chromatography to obtain 8.80 g (75.7%) of 4-(tert-butoxycarbonylaminomethyl)benzyl alcohol.

1. additionAfter completion of the dropwise addition
2. temperaturethe solution was heated
3. temperatureto reflux for 2 hours
4. temperaturecooled to 0° C
5. additionwas added
6. filtrationInsoluble matters were filtered off
7. concentrationthe resulting filtrate was concentrated under reduced pressure
8. customThe concentrate was isolated
9. custompurified by silica gel column chromatography