| 摘要 |
1298311 5 - Imino - -1,2,4 - triazine derivatives BAYER AG 12 Jan 1971 [24 Jan 1970] 1446/71 Heading C2C 5 - Imino - 1,2,4 - triazine derivatives of formula where R is an aliphatic, arylaliphatic, aromatic or heterocyclic radical which may be substituted by hydroxy, halogen, alkyl and/or nitro, R 1 is an aliphatic hydrocarbon radical, amino, alkylamino, or dialkylamino, R 2 is hydrogen or an aliphatic hydrocarbon radical, and X is oxygen, sulphur or NR 3 where R 3 is hydrogen or an aliphatic hydrocarbon radical are prepared by reacting an alpha-imino-nitrile of formula with a hydrazine derivative of formula in which R, R 1 , R 2 , and X have the above meanings and R 4 is the same or different R. The derivatives may be used as active ingredients in herbicidal compositions. |
