Process for the preparation of 1-amino-1,3,5-triazine-2,4(1H,3H)-diones
    1.
    发明授权
    Process for the preparation of 1-amino-1,3,5-triazine-2,4(1H,3H)-diones 失效
    1-氨基-1,3,5-三嗪-2,4(1H,3H) - 二酮的制备方法

    公开(公告)号:US4524205A

    公开(公告)日:1985-06-18

    申请号:US544334

    申请日:1983-10-21

    摘要: A process for the preparation of a herbicidally active 1-amino-1,3,5-triazone-2,4 (1H,3H)-dione of the formula ##STR1## comprising in a first stage at a temperature from about 0.degree. to 100.degree. C. reacting an isocyanate of the formulaR.sup.1 - NCO (II)with an isothio semicarbazone of the tautomeric formulas ##STR2## in which R.sup.3 and R.sup.4 each independently is hydrogen, alkyl, cycloalkyl, aralkyl o alkyl, cycloalkyl, aralkyl or aryl,thereby to form a urea derivative of the tautomeric formulas ##STR3## in a second stage at a temperature between about -50.degree. and 0.degree. C. reacting the urea derivative with phosgene (COCl.sub.2) in the presence of an auxiliary organic base and in the presence of a diluent, at least about 2 mols of phosgene and at least about 2 mols of the auxiliary base being used per mol of urea derivative, thereby to form a 1-alkylideneamino-1,3,5-triazine-2,4(1H,3H)-dione of the formula V ##STR4## and in a third stage converting the 1-alkylideneamino group to a 1-amino group.

    摘要翻译: 制备式(I)的除草活性1-氨基-1,3,5-三嗪-2,4(1H,3H) - 二酮的方法,其包含在第一阶段中在约 使式R 1 -NCO(II)的异氰酸酯与互变异构结构式(III)的异噻唑烷酮反应,其中R 3和R 4各自独立地为氢,烷基,环烷基,芳烷基烷基 ,环烷基,芳烷基或芳基,从而在约-50℃至0℃的温度下在第二阶段中形成互变异构体式(IV)的脲衍生物。将脲衍生物与光气(COCl 2)在 辅助有机碱的存在和在稀释剂存在下,每摩尔脲衍生物使用至少约2摩尔的光气和至少约2摩尔的辅助碱,从而形成1-亚烷基氨基-1, (V)的3,5-三嗪-2,4(1H,3H) - 二酮,在第一阶段将1-亚烷基氨基转化为1-氨基 没有组。

    N-(2,5-Diazolyl)-alkyl-haloacetanilides, compounds and herbicidal
compositions
    10.
    发明授权
    N-(2,5-Diazolyl)-alkyl-haloacetanilides, compounds and herbicidal compositions 失效
    N-(2,5-二唑基) - 烷基 - 卤代乙酰苯胺,化合物和除草组合物

    公开(公告)号:US4295876A

    公开(公告)日:1981-10-20

    申请号:US143053

    申请日:1980-04-23

    摘要: Novel N-(2,5-diazolyl)-alkyl-halogenoacetanilides of the general formmula ##STR1## in which A represents oxygen, sulphur or the grouping >NR,whereinR represents alkyl,R.sup.1 represents hydrogen, alkyl or alkoxy,R.sup.2 represents hydrogen, alkyl, alkoxy or halogen,R.sup.3 represents hydrogen, alkyl, alkoxy or halogen,R.sup.4 represents hydrogen or alkyl,R.sup.5 represents hydrogen, alkyl, alkoxy, alkylthio, dialkylamino, halogen, cyano or alkoxycarbonyl andZ represents halogen, and acid addition salts and metal salt complexes thereof are outstandingly effective as herbicides.Furthermore novel N-(2,5-diazolyl)-alkyl-anilines of the general formula ##STR2## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and A have the above-mentioned meaning.

    摘要翻译: 一般形式的新的N-(2,5-二唑基) - 烷基 - 卤代乙酰替苯胺,其中A表示氧,硫或分组> NR,其中R表示烷基,R1表示氢,烷基或烷氧基, R 2表示氢,烷基,烷氧基或卤素,R 3表示氢,烷基,烷氧基或卤素,R 4表示氢或烷基,R 5表示氢,烷基,烷氧基,烷硫基,二烷基氨基,卤素,氰基或烷氧基羰基,Z表示卤素, 其加成盐和金属盐络合物作为除草剂是非常有效的。 此外,其中R1,R2,R3,R4,R5和A具有上述含义的通式为“IMAGE”(II)的新型N-(2,5-二唑基) - 烷基苯胺。