Dabco → 2-{[4-Chloro-3-(trifluoromethyl)phenyl]oxy}-5-{[(2-oxo-1,2-dihydro-4-pyrimidinyl)oxy]methyl}benzonitrile

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Reaction Conditions

Reaction Steps

A mixture of 5-{[(2-chloro-4-pyrimidinyl)oxy]methyl}-2-{[4-chloro-3-(trifluoromethyl)phenyl]oxy}benzo-nitrile (2.30 g, 2.61 mmol), DABCO (0.147 g, 1.31 mmol) and potassium carbonate (1.08 g, 7.84 mmol) in a mixed solvents of 1,4-Dioxane (10 mL) and water (10 mL) was heated at 70° C. for 3 h, then concentrated and diluted with ethyl acetate (100 mL) and water (100 mL). Separated organic part was washed with water and brine, dried over sodium sulfate, concentrated. Purification via mass-directed autopreparation afforded the title product (1.0 g). LC-MS (ESI): m/z 420 [M−H]+; 3.89 min (ret time).

Provenance & Evidence