Ammonium Chloride → (2-Bromophenyl)(3-methoxyphenyl)methanol

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

3-Methoxyphenyl magnesium bromide (1.0 M solution in THF; 5.4 mL, 5.4 mmol) was taken in a flask under N2 and cooled (0° C.). 2-Bromobenzaldehyde (1 g, 5.4 mmol) in anhydrous THF (10 mL) was added dropwise via syringe over 5 min. The reaction mixture was stirred at this temperature for 20 min. and slowly brought to room temperature. After stirring for another 30 min. satd. NH4Cl solution (20 mL) was added and the mixture was extracted with Et2O (3×25 mL). The combined Et2O extracts were washed with water, brine, dried (MgSO4) and evaporated under reduced pressure to give a yellow oil. The oil was purified by mplc using CH2Cl2 as eluent to give 1.275 g (81%) of the alcohol as a colorless oil. 1H NMR (CDCl3)d: 2.71 (s, 1H, OH), 3.78 (s, 3H, CH3), 6.15 (s, 1H, CH), 6.80-7.58 (m, 8H, Ar—H). 13C NMR (CDCl3)d: 55.80, 75.16, 113.29, 119.90, 123.39, 128.33, 129.11, 129.71, 130.08, 133.39.

Herkunft & Nachweise