Ethyl bromoacetate → (2-Propyl-phenoxy)-acetic Acid Ethyl Ester

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

2-Propylphenol (15.0 g, 110 mmol) was dissolved in DMF (70 mL), and stirred at 0° C. To the solution was added K2CO3 (30.43 g, 220.2 mmol) and ethyl 2-bromoacetate (13.43 mL, 121.1 mmol), and the reaction was stirred at room temperature for 3.5 h. The reaction was diluted with water, and the product was extracted with EtOAc twice. The organic layer was washed with water, brine, dried over Na2SO4, and concentrated in vacuo to give residue. The residue was purified using silica gel column chromatography (hexane/EtOAc=30/1) to give 4.2 (25.4 g). 1H NMR (400 MHz) (CDCl3) δ 7.18-7.08 (2H, m); 6.91 (1H, t, J=7.4 Hz); 6.71 (1H, d, J=8.1 Hz); 4.62 (2H, s); 4.25 (2H, q, J=7.1 Hz); 2.68-2.57 (2H, m); 1.70-1.60 (2H, m); 1.29 (3H, t, J=7.1 Hz); 0.95 (3H, t, J=7.4 Hz).

Herkunft & Nachweise