Process for the preparation of substituted chloroacetanilides
    1.
    发明授权
    Process for the preparation of substituted chloroacetanilides 失效
    制备取代氯乙酰苯胺的方法

    公开(公告)号:US4511736A

    公开(公告)日:1985-04-16

    申请号:US456383

    申请日:1983-01-07

    CPC分类号: C07C231/02 A01N37/22

    摘要: The invention relates to a novel process for preparing chloroacetanilides of the formula ##STR1## wherein: R.sub.1 and R.sub.2 represent independently from each other a hydrogen atom or a C.sub.1-8 alkyl or C.sub.1-8 alkoxy group; andR.sub.3 stands for a straight chained or branched C.sub.1-8 alkoxy group.Said process is characterized by chloroacetylating a 2,6-dialkylaniline of the formula ##STR2## wherein R.sub.1 and R.sub.2 are as defined above, at a temperature of 10.degree. to 120.degree. C., optionally in a solvent medium in the presence of an acid binding agent, then reacting a thus-obtained intermediate with chloromethyl chloroformiate or, alternatively, reacting a compound of the formula (II) first with chloromethyl chloroformiate and subjecting then to chloroacetylation, thereafter reacting a thus-obtained intermediate with an alcohol of the formulaR.sub.3 --OH (III),wherein R.sub.3 is as defined above, optionally in a solvent medium in the presence of an acid binding agent, and recovering a product of the formula (I) in a known manner.The process of the invention enables the more simple and economic preparation of the compounds of formula (I) of improved purity.

    摘要翻译: 本发明涉及一种制备式(I)的氯乙酰苯胺的新方法,其中:R1和R2彼此独立地表示氢原子或C1-8烷基或C1-8烷氧基; R3代表直链或支链C 1-8烷氧基。 所述方法的特征在于在10℃至120℃的温度下,任选在存在的溶剂介质中氯代乙酰化式(II)的2,6-二烷基苯胺,其中R 1和R 2如上定义 然后使由此获得的中间体与氯甲基氯甲酸酯反应,或者使式(II)的化合物首先与氯甲酸氯甲酯反应,然后进行氯乙酰化,然后使由此得到的中间体与醇的醇反应 任选地在酸性结合剂存在下在溶剂介质中,以已知方式回收式(I)的产物,其中R3如上所定义的式R3-OH(III)。 本发明的方法使得可以更简单和经济地制备具有改进纯度的式(I)化合物。

    Herbicide compositions containing a nitrile derivative as antidote
    3.
    发明授权
    Herbicide compositions containing a nitrile derivative as antidote 失效
    含有腈衍生物作为解毒剂的除草剂组合物

    公开(公告)号:US4787933A

    公开(公告)日:1988-11-29

    申请号:US65265

    申请日:1987-06-22

    CPC分类号: A01N25/32

    摘要: The invention relates to a herbicide composition comprising as herbicidally active ingredient an urea derivative and/or a thiolcargamate derivative and/or a chloroacetanilide derivative together with a nitrile derivative of the general formula (I), ##STR1## wherein R.sub.1 and R.sub.2 which are the same or different, stand for hydroger, halogen or a methyl, ethyl, allyl, vinyl, phenyl or benzyl group; orR.sub.1 and R.sub.2 together may stand for a benzylidene group; andR.sub.3 means chlorine or a methyl, phenyl, chlorophenyl, alkoxyphenyl, chlorophenylamino, anilino, anilinomethylene, N-alkylanilinomethylene, N,N-dialkylanilinomethylene, alkoxyanilinomethylene, benzylaminomethylene, cyclohexylaminomethylene, N-alkyl-cyclohexylaminomethylene, hexamethyleniminomethylene, phthalimidomethylene, nitrophthalimidomethylene, morpholinomethylene, piperidinomethylene, C.sub.1-3 alkylaminomethylene, allylaminomethylene or di(C.sub.1-3 alkyl)aminorethylene groupand/or together with a cyanopyridine and/or with a benzonitrile derivative optionally mono- or polysubstituted by halogen(s) or C.sub.1-3 alkoxy group(s) as antidote(s) in a mass ratio from 40:1 to 1:1 of the herbicidally active ingredient to the antidote nitrile derivative.

    摘要翻译: 本发明涉及一种除草剂组合物,其包含作为除草活性成分的尿素衍生物和/或硫氰酸酯衍生物和/或氯代乙酰苯胺衍生物以及通式(I)的腈衍生物,其中R1和R2 氢原子,卤素或甲基,乙基,烯丙基,乙烯基,苯基或苄基;它们相同或不同。 或者R 1和R 2可以一起代表亚苄基; 并且R 3表示氯或甲基,苯基,氯苯基,烷氧基苯基,氯苯基氨基,苯胺基,苯胺基亚甲基,N-烷基苯胺基亚甲基,N,N-二烷基苯胺基亚甲基,烷氧基亚氨基亚甲基,苄基亚氨基亚甲基,环己基氨基亚甲基,N-烷基 - 环己基亚氨基亚甲基,六亚甲基亚氨基亚甲基,邻苯二甲酰亚胺亚甲基,硝基邻苯二甲酰亚甲基,吗啉代亚甲基, 哌啶亚甲基,C 1-3烷基氨基亚甲基,烯丙基氨基亚甲基或二(C 1-3烷基)氨基亚乙基和/或与氰基吡啶和/或与任选被卤素或C 1-3烷氧基单取代或多取代的苄腈衍生物一起作为 解毒剂与除草剂腈衍生物的除草活性成分的质量比为40:1-1:1。