Hydrochloric Acid → 4-Cyclobutyloxybenzyl alcohol

To a suspension of 4-hydroxybenzaldehyde (0.12 g) and cesium carbonate (0.49 g) in N,N-dimethylformamide (2 mL) was added cyclobutyl bromide (0.15 g), and the mixture was stirred at 65° C. overnight. To the reaction mixture was added 1 mol/L aqueous sodium hydroxide solution, and the mixture was extracted with diethyl ether. The organic layer was washed with 0.5 mol/L aqueous sodium hydroxide solution, water and brine, and dried over an hydrous magnesium sulfate. The solvent was removed under reduced pressure to give 4-cyclobutyloxybenzaldehyde (0.13 g). To a solution of the obtained 4-cyclobutyloxybenzaldehyde (0.13 g) in methanol (10 mL) was added sodium borohydride (0.056 g), and the mixture was stirred at room temperature overnight. To the reaction mixture was added 1 mol/L hydrochloric acid solution, and the mixture was extracted with diethyl ether. The organic layer was dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure to give 4-cyclobutyloxybenzyl alcohol (0.12 g).

1. extractionthe mixture was extracted with diethyl ether
2. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
3. customthe solvent was removed under reduced pressure

ORD-Eintrag

ord-be618344dc524ddda6c254a3e3e4fb92

Quelldatensatz

uspto-grants-2007_03

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US07189702B2