Ammonium Hydroxide → HCID 86585162, compound

Participants

Reaction Steps

A solution of ethyl 4-chloro-2-methylthiopyrimidine-5-carboxylate (1450 g, 6.23 mole) (Aldrich Chemical Co., Milwaukee, Wis., USA) in 2987 mL of tetrahydrofuran was cooled to 5-10° C. and treated slowly with a mixture of 2407 mL of a 37% solution of ammonium hydroxide in 2978 mL triethylamine. After stirring for 16 hours, the reaction mixture was concentrated in vacuo to approximately 5L and filtered. The filter cake was washed with hexanes and dried in a vacuum oven at 60-65° C. The filtrate was evaporated under reduced pressure to give 1314 g (94%) of ethyl 4-amino-2-methylthiopyrimidine-5-carboxylate as a white solid. m.p. 130.1-130.7° C.

Provenance & Evidence