Preparation of 2'-methyl-2-haloacetanilides
    21.
    发明授权
    Preparation of 2'-methyl-2-haloacetanilides 失效
    2'-甲基-2-卤代乙酰苯胺的制备

    公开(公告)号:US4618713A

    公开(公告)日:1986-10-21

    申请号:US530154

    申请日:1983-09-07

    CPC分类号: C07C233/02

    摘要: This invention relates to a process for preparing 2'-methyl-2-haloacetanilides by selective catalytic hydrogenation of 2'-(halomethyl)-2-haloacetanilides. The 2'-(halomethyl)-2-haloacetanilides are initially prepared by reacting an ortho-(halomethyl) aniline or its anilinium salt with a haloacetyl halide.

    摘要翻译: 本发明涉及通过2' - (卤代甲基)-2-卤代乙酰苯胺的选择性催化氢化制备2'-甲基-2-卤代乙酰苯胺的方法。 最初通过使邻 - (卤代甲基)苯胺或其苯胺盐与卤代乙酰卤反应来制备2' - (卤代甲基)-2-卤代乙酰苯胺。

    Electrolytic desulfurization of anilino sulfur compounds
    24.
    发明授权
    Electrolytic desulfurization of anilino sulfur compounds 失效
    苯胺硫化合物的电解脱硫

    公开(公告)号:US4404069A

    公开(公告)日:1983-09-13

    申请号:US358771

    申请日:1982-03-17

    IPC分类号: C07C209/68 C25B3/04 C07C85/20

    CPC分类号: C25B3/04 C07C209/68

    摘要: Various substituted ortho-alkyl anilines are prepared by electrolytic desulfurization of various benzyl sulfides, sulfoxides and sulfones, e.g. 2-methyl-6-trifluoromethylaniline is prepared from 2-amino-3-trifluoromethylbenzyl sulfides, sulfoxides and sulfones. The processes are conducted in concentrated aqueous quaternary ammonium hydroxide, as well as in aprotic media. The substituted anilines obtained are useful as intermediates for herbicide compounds.

    摘要翻译: 各种取代的邻烷基苯胺通过各种苄基硫化物,亚砜和砜的电解脱硫制备。 2-甲基-6-三氟甲基苯胺由2-氨基-3-三氟甲基苄基硫化物,亚砜和砜制备。 该方法在浓缩的氢氧化季铵水溶液以及非质子介质中进行。 获得的取代的苯胺可用作除草剂化合物的中间体。

    Process for the in-solvent, in-situ generation of haloalkyl alkyl ethers
    25.
    发明授权
    Process for the in-solvent, in-situ generation of haloalkyl alkyl ethers 失效
    卤代烷基烷基醚的溶剂,原位产生方法

    公开(公告)号:US4371717A

    公开(公告)日:1983-02-01

    申请号:US230996

    申请日:1981-02-03

    IPC分类号: C07D309/06 C07C41/01

    CPC分类号: C07D309/06

    摘要: The present invention is directed to a process for the preparation of certain N-substituted-2-haloacetanilides via the reaction of a secondary 2-haloacetanilide with a haloalkyl ether, particularly, halomethyl ethers, which comprises forming the ether in situ by the in-solvent reaction of an alcohol, formaldehyde or other aldehyde and an acid halide to produce high purity haloalkyl ethers, while decreasing the concentration of undesirable bis by products, as for example bis(chloromethyl) ether. The ether formed in situ thereafter reacts with the secondary 2-haloacetanilide in the presence of a phase transfer catalyst and base to form the N-substituted-2-haloacetanilide.

    摘要翻译: 本发明涉及一种通过二次2-卤代乙酰苯胺与卤代烷基醚,特别是卤代甲基醚的反应制备某些N-取代-2-卤代乙酰苯胺的方法,该方法包括通过在室温下原位形成醚, 醇,甲醛或其它醛和酰卤的溶剂反应产生高纯度卤代烷基醚,同时降低不期望的双产物浓度,例如双(氯甲基)醚。 原位形成的醚在相转移催化剂和碱存在下与仲2-卤代乙酰苯胺反应形成N-取代-2-卤代乙酰苯胺。

    Ortho-bromination of ortho-alkylated anilines
    26.
    发明授权
    Ortho-bromination of ortho-alkylated anilines 失效
    正烷基化苯胺的正交溴化

    公开(公告)号:US4188342A

    公开(公告)日:1980-02-12

    申请号:US5057

    申请日:1979-01-22

    申请人: John P. Chupp

    发明人: John P. Chupp

    CPC分类号: C07C209/74 C07C231/02

    摘要: The disclosure herein pertains to o-brominated-o-alkylated anilines and a process for the preparation thereof. The substituted anilines prepared herein are useful as intermediates in the preparation of herbicidal 2-haloacetanilides.

    摘要翻译: 本文的公开涉及邻溴代O-烷基化苯胺及其制备方法。 本文制备的取代的苯胺可用作制备除草2-卤代乙酰苯胺的中间体。

    Herbicidal tertiary 2-haloacetamides
    29.
    发明授权
    Herbicidal tertiary 2-haloacetamides 失效
    除草叔叔2-卤代乙酰胺

    公开(公告)号:US4351667A

    公开(公告)日:1982-09-28

    申请号:US31087

    申请日:1979-04-18

    申请人: John P. Chupp

    发明人: John P. Chupp

    CPC分类号: A01N37/36 A01N37/26 A01N41/06

    摘要: The disclosure herein relates to tertiary 2-haloacetamides substituted on the amide nitrogen atom with certain 1-cycloalken-1-yl, alkoxymethyl, alkylthiomethyl or acetamidomethyl radicals. These acetamides are useful as herbicides.

    摘要翻译: 本文的公开内容涉及在酰胺氮原子上与某些1-环烯烃-1-基,烷氧基甲基,烷基硫代甲基或乙酰氨基甲基取代的叔2-卤代乙酰胺。 这些乙酰胺可用作除草剂。