Hydrochloric Acid → HCID 178493737, compound

Participants

Reaction Steps

151.2 g (2 mols) of chloroacetonitrile were added to a solution of 10.8 g (0.2 mol) of sodium methylate in 500 ml of methanol at 0°-5° C., 117.6 g (2.2 mols) of ammonium chloride were then added at 15°-20° C. and the mixture was subsequently stirred at room temperature for 4 hours. Thereafter, it was added, at 0°-5° C., to a mixture of 208 g (2 mols) of methoxyacetic acid methyl ester, 120 g (2 mols) of formic acid methyl ester and 108 g (2 mols) of solid sodium methylate, which had first been stirred at room temperature for 5 hours. A solution of 108 g (2 mols) of sodium methylate in 400 ml of methanol was then added at 0°-5° C. and the reaction mixture was subsequently stirred at 0°-5° C. for 24 hours. The pH value was adjusted to 5 by adding concentrated hydrochloric acid, while still cooling, and water was then added in an amount such that a clear solution was formed. The methanol was distilled out of the reaction mixture in vacuo, the aqueous solution which remained was cooled, and the product which had precipitated was then filtered off. 140 g (40% of theory) of 2-chloromethyl-6-hydroxy-5-methoxypyrimidine were obtained in this manner in the form of a sand-colored powder with a melting point of 188° C. (decomposition). ##STR12##

Provenance & Evidence