Ethyl Acetate → 4-(4-Amino-2,3-dimethylphenoxy)-7-benzyloxy-6-cyanoquinoline

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

4-Amino-2,3-xylenol (2.80 g) purchased from Tokyo Chemical Industries was dissolved in dimethylsulfoxide (15 ml), and after gradually adding sodium hydride (816 mg) at room temperature, the mixture was stirred for 20 minutes. 7-Benzyloxy-4-chloro-6-cyanoquinoline (3.0 g) was added, and the mixture was heated at 100° C. for 4 hours while stirring. After cooling to room temperature, the reaction solution was distributed between ethyl acetate and water, and the organic layer was washed with water, 1N aqueous sodium hydroxide and saturated brine and dried over anhydrous sodium sulfate. The solvent was distilled off, and the obtained crude product was washed with ethyl acetate to obtain the title compound (1.72 g) as light brown crystals.

Herkunft & Nachweise