Triphenylphosphine → 4-Chloro-6-(2-fluoro-1-fluoromethyl-ethoxy)-quinazoline

Participants

Reaction Steps

4-Chloro-6-hydroxy-quinazoline (500 mg; 2.78 mmol), 800 mg (8.33 mmol) of 1,3-difluoro-2-propanol and 2.18 g (8.33 mmol) of triphenyl phosphine were dissolved in 30 ml of THF and 3.62 g (8.33 mmol) was added thereto at room temperature. The reaction solution was stirred at room temperature for 3 hours more, a saturated aqueous solution of sodium hydrogen carbonate was added and the mixture was extracted with chloroform. The organic layer was dried and concentrated and the resulting residue was purified by a silica gel column chromatography (hexane:ethyl acetate=1:2) to give 530 mg (yield: 74%) of 4-chloro-6-(2-fluoro-1-fluoromethyl-ethoxy)-quinazoline as a yellow solid.

Provenance & Evidence