1-Aminouracil compounds and herbicidal compositions
    3.
    发明授权
    1-Aminouracil compounds and herbicidal compositions 失效
    1-氨基尿嘧啶化合物和除草组合物

    公开(公告)号:US3920653A

    公开(公告)日:1975-11-18

    申请号:US33052473

    申请日:1973-02-07

    Applicant: BAYER AG

    CPC classification number: C07D239/54 C07D239/553 C07D265/12

    Abstract: 1-Aminouracil compounds of the formula IN WHICH R1 is an organic radical; R2 represents hydrogen, halogen, the thiocyanate radical, alkyl or optionally substituted aryl, and R3 represents alkyl or aralkyl optionally substituted in the aryl part, or R2 and R3 together represent a multi-membered methylene bridge which forms, with the two carbon atoms in the 5- and 6positions of the heterocyclic structure, a fused ring which is optionally substituted by alkyl; and agriculturally acceptable salts thereof; ARE OUTSTANDINGLY EFFECTIVE AS HERBICIDES, PARTICULARLY AS BROAD SPECTRUM TOTAL HERBICIDES.

    Abstract translation: 式Ⅰ的1-氨尿嘧啶化合物,其中R1是有机基团; R 2表示氢,卤素,硫氰酸酯基,烷基或任选取代的芳基,R 3表示在芳基部分任选取代的烷基或芳烷基,或者R 2和R 3一起表示多元亚甲基桥,其与两个碳原子形成 杂环结构的5-和6-位,任选被烷基取代的稠合环; 和其农业上可接受的盐; 作为除草剂特别有效,特别是作为广谱光谱杀草剂。

    6-Hydroxy-dihydro-uracils, process for their preparation
    4.
    发明授权
    6-Hydroxy-dihydro-uracils, process for their preparation 失效
    6-羟基 - 二氢尿嘧啶,其制备方法

    公开(公告)号:US3925386A

    公开(公告)日:1975-12-09

    申请号:US26687272

    申请日:1972-06-28

    Applicant: BAYER AG

    CPC classification number: C07D239/22 C07D265/12 C07D319/08

    Abstract: Novel 6-hydroxy-dihydro-uracil compounds of the formula:

    WHEREIN R1 is hydrocarbyl and substituted hydrocarbyl, both aliphatic and aromatic, R2 is hydrogen, alkyl, or optionally, substituted aryl, R3 is alkyl or aralkyl, and R2 and R3 together may be an alkylene bridge; ARE PREPARED BY REACTING A 2,3-DIHYDRO-1,3-OXAZINE-2,4-DIONE OF THE GENERAL FORMULA

    IN WHICH R1, R2 and R3 have the above mentioned meanings, is reacted with ammonia at a temperature of -50*C to +50*C, optionally in the presence of a diluent, but in the substantial absence of water. These compounds are herbicidally active.

    Abstract translation: 新型6-羟基 - 二氢尿嘧啶化合物,其具有下式:

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