2-cyanoamino-pyrimidines
    24.
    发明授权
    2-cyanoamino-pyrimidines 失效
    2-氰基氨基 - 嘧啶

    公开(公告)号:US4711959A

    公开(公告)日:1987-12-08

    申请号:US884710

    申请日:1986-07-11

    摘要: A process for the preparation of a 2-cyanoamino-pyrimidine of the formula ##STR1## in which R.sub.1 is hydrogen, halogen, optionally substituted alkyl or optionally substituted alkoxy,R.sup.2 is hydrogen, alkyl or halogen, andR.sup.3 is hydrogen, halogen, optionally substituted alkyl or optionally substituted alkoxy,comprising reacting a 2-alkylsulphonyl-pyrimidine of the formula ##STR2## in which R.sup.4 is optionally substituted alkyl, with cyanamide or with a metal salt of cyanamide at a temperature between 0.degree. and 150.degree. C.

    摘要翻译: 制备式IMAMA的2-氰基氨基 - 嘧啶的方法,其中R 1为氢,卤素,任选取代的烷基或任选取代的烷氧基,R 2为氢,烷基或卤素,且R 3为氢,卤素,任选地 取代的烷基或任选取代的烷氧基,包括使其中R 4为任选取代的烷基的式“IMAGE”的2-烷基磺酰基嘧啶与氰酰胺或与氰胺的金属盐在0至150℃之间的温度下反应。