Water → (3,5-Bis-trifluoromethyl-benzyl)-(5-bromo-pyrimidin-2-yl)-(2-ethoxy-5-trifluoromethyl-benzyl)-amine

Participants

Reaction Conditions

Reaction Steps

(3,5-Bis-trifluoromethyl-benzyl)-(5-bromo-pyrimidin-2-yl)-(2-fluoro-5-trifluoromethyl-benzyl)-amine (300 mg) is dissolved in tetrahydrofuran (3 ml) and thereto are added ethyl-carbamic ethyl ester (67 mg) and sodium hydride (60%) (23 mg) and the mixture is stirred at 120° C. under a condition of 192 W by a microwave instrument for 1 hour and thereto are added ethyl-carbamic ethyl ester (134 mg) and sodium hydride (60%) (46 mg) and the mixture is stirred at 120° C. under a condition of 192 W by a microwave instrument for an additional 1 hour. To the reaction solution are added water and ethyl acetate, and the mixture is separated, and the organic layer is washed with a saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The resulting residue is purified by silica gel column chromatography (hexane:ethyl acetate=1:0→9:1) to give (3,5-bis-trifluoromethyl-benzyl)-(5-bromo-pyrimidin-2-yl)-(2-ethoxy-5-trifluoromethyl-benzyl)-amine (220 mg). MS (m/z): 602/604 [M+H]+

Provenance & Evidence