反应详情

温度

60 °C

To a slurry of lithium aluminum hydride (4.1 g, 108 mmol) in tetrahydrofuran (80 mL) was added a solution of 6-chloro-4-hydroxy-3-methyl-naphthalene-2-carboxylic acid (12.7 g, 54 mmol) in tetrahydrofuran (80 mL) at 0° C. under a nitrogen atmosphere. After being heated at 60° C. for 5 hours, the resulting mixture was cooled to 0° C. and treated with 1 N hydrochloric acid to quench the reaction. The aqueous layer was extracted with ethyl acetate (100 mL×4). The combined organic layers were washed with brine (200 mL×2), dried over sodium sulfate and concentrated in vacuo to give 7-chloro-3-hydroxymethyl-2-methyl-naphthalen-1-ol (8.5 g, 71%) as a white solid.

1. temperaturethe resulting mixture was cooled to 0° C.
2. customto quench
3. customthe reaction
4. extractionThe aqueous layer was extracted with ethyl acetate (100 mL×4)
5. washThe combined organic layers were washed with brine (200 mL×2)
6. dry with materialdried over sodium sulfate
7. concentrationconcentrated in vacuo