Carbon Dioxide → HCID 18326214, compound

Participants

Reaction Steps

2-bromo-4-[methyl(phenylmethyl)amino]-6-[3-(trifluoromethyl)phenoxy] pyridine (6.38 g, 0.0146 mol) was dissolved in about 300 ml of diethyl ether. While cooling in a dry ice-acetone bath in an argon atmosphere, the obtained solution was mixed with n-butyl lithium [10 ml (ca. 1.63 M in hexane solution), 0.0146×1.1 mol] and then stirred for about 10 minutes. After the interior of the reactor was replaced with a carbon dioxide gas, the solution was removed from the bath and stirred at room temperature for about one hour. The obtained reaction solution was mixed with about 30 ml of a 1 N aqueous hydrochloric acid solution, distributed in ethyl acetate-water, and then washed with saturated brine. The organic phase separated from the solution was dried with anhydrous sodium sulfate, concentrated, and then purified by silica gel column chromatography (eluting solution: ethyl acetate/hexane), thereby obtaining an aimed product.

Provenance & Evidence