反应详情

57.7 g (0.3 mol) of 2-tert-butyl-5-hydroxy-3,4,5,6-tetrahydropyrimidine hydrochloride are dissolved in 100 ml of water and 20 ml of 45 percent strength sodium hydroxide solution are added. The precipitated product is filtered off with suction. 32.7 g (70% of theory) of 2-tert-butyl-5-hydroxy-3,4,5,6-tetrahydropyrimidine are thus obtained in the form of colorless crystals having melting point 210° C.

1. filtrationThe precipitated product is filtered off with suction