Hydrochloric Acid → HCID 58467968, compound

Participants

Reaction Steps

A solution of 1.00 g (4.63 mmol) of 2,4-dichloro-5-trifluoromethylpyrimidine and 0.64 ml (5.99 mmol) of cyclohexanol in 12.2 ml of diethyl ether and 12.2 ml of acetonitrile was admixed at 0° C. with stirring in portions with 0.24 g of sodium hydride (55%). The mixture was slowly warmed to room temperature overnight in an ice bath. The mixture was admixed with ice and dilute sodium chloride solution. Extraction was carried out with ethyl acetate (2×). The combined organic phases were dried (Na2SO4), filtered and concentrated by evaporation. This gave 1.30 g of the crude product. 0.65 g of the crude product and 0.40 g (2.3 mmol) of 4-methanesulphonylphenylamine in 16.0 ml of acetonitrile were admixed with 0.80 ml of a 4N solution of hydrogen chloride in dioxane and stirred for 24 hours at 60° C. The mixture was admixed with a small amount of sodium hydrogen carbonate solution and concentrated in a rotary evaporator. The resulting residue was purified by means of HPLC. This gave 0.05 g (0.12 mmol) of the product.

Provenance & Evidence