Tetrahydrofuran → 3-(4-Hydroxyphenyl)propanol

Reaktionsgleichung

C([C:4]1[CH:9]=[CH:8][C:7]([CH2:10][CH2:11][C:12]([OH:14])=O)=[CH:6][CH:5]=1)(=O)C.[O:15]1CCCC1.[H-].[Al+3].[Li+].[H-].[H-].[H-]>O>[OH:15][C:4]1[CH:9]=[CH:8][C:7]([CH2:10][CH2:11][CH2:12][OH:14])=[CH:6][CH:5]=1

Komponenten

Versuchsvorschrift

To 3.82 g (17.36 mmoles) of methyl ester of 3-(4-acetylphenyl) propionic acid were added 100 ml of dry tetrahydrofurane. To this solution were slowly added 1.80 g (47.43 mmoles) of lithium aluminium hydride (LiAlH4). The reaction mixture was refluxed in an argon atmosphere for 4 hours. At the end of the reaction, water was carefully added, extraction was performed three times with diethyl ether and the result was vacuum dried over anhydrous sodium sulphate, giving 1.70 g (65% yield) of 3-(4-hydroxyphenyl)-1-propanol. Crystallisation in methanol gave a white crystalline solid m,.p.=52-53° C.