| 摘要 |
1296371 Pyrimidine derivatives IMPERIAL CHEMICAL INDUSTRIES Ltd 20 Jan 1970 [26 Feb 1969] 10265/69 Heading C2C 2 - Alkylamino - 4 - hydroxypyrimidines of formula where R 2 , R 5 and R 6 are C 1-8 alkyl and R 3 is H or C 1-8 alkyl are prepared by heating where R is C 1-8 , alkyl with HNR 2 R 3 or a salt thereof. The products are fungicides. The compound I where R is CH 3 , R 5 is n-butyl and R 6 is CH 3 is prepared from ethyl n-butylacetoacetate and O methylisourea hydrochloride. |
