Stable, dry compositions for use as herbicides
    1.
    发明授权
    Stable, dry compositions for use as herbicides 有权
    用作除草剂的稳定的干燥组合物

    公开(公告)号:US6071858A

    公开(公告)日:2000-06-06

    申请号:US165139

    申请日:1998-10-01

    IPC分类号: A01N43/82 A01N43/64

    CPC分类号: A01N43/82

    摘要: The present invention relates to a dry composition that can be used as a herbicide. The composition contains N-(4-fluorophenyl)-N-(1-methylethyl)-2-[[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]oxy]acetamide, 4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5-(4H)-one, and a pH adjusting agent. The pH adjusting agent is present in an amount such that it constitutes from about 0.1% to about 10% of the composition, and the resulting pH is from about 2.8 to about 5.4. The molar ratio of 4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5-(4H)-one to N-(4-fluorophenyl)-N-(1-methylethyl)-2-[[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]oxy]acetamide in the composition is from about 1:1 to about 1:6.

    摘要翻译: 本发明涉及可用作除草剂的干组合物。 该组合物含有N-(4-氟苯基)-N-(1-甲基乙基)-2 - [[5-(三氟甲基)-1,3,4-噻二唑-2-基]氧基]乙酰胺,4-氨基-6- - (1,1-二甲基乙基)-3-(甲硫基)-1,2,4-三嗪-5-(4H) - 酮和pH调节剂。 pH调节剂的存在量使其占组合物的约0.1%至约10%,所得pH为约2.8至约5.4。 4-氨基-6-(1,1-二甲基乙基)-3-(甲硫基)-1,2,4-三嗪-5-(4H) - 酮与N-(4-氟苯基)-N- (1-甲基乙基)-2 - [[5-(三氟甲基)-1,3,4-噻二唑-2-基]氧基]乙酰胺为约1:1至约1:6。

    Process for the production of an N-acyl derivative of O,S-dialkyl
phosphoroamidothioate
    4.
    发明授权
    Process for the production of an N-acyl derivative of O,S-dialkyl phosphoroamidothioate 有权
    制备O,S-二烷基氨基硫代磷酸酯的N-酰基衍生物的方法

    公开(公告)号:US5973180A

    公开(公告)日:1999-10-26

    申请号:US143769

    申请日:1998-08-31

    IPC分类号: C07F9/00 C07F9/24

    CPC分类号: C07F9/2487

    摘要: The present invention relates to an improved process for the preparation of an acyl derivative of O,S-dialkyl phosphoroamidothioate by reacting an O,S-dialkyl phosphoroamidothioate with an acylating agent in the presence of an acid, wherein the improvement resides in adding a C.sub.4 to C.sub.8 aliphatic alcohol, following completion of the acylation reaction, to the mixture of the N-acyl-O,S-dialkyl phosphoroamidothioate, the acylating agent and the acid. In an embodiment of the present invention, the acylation reaction is conducted in the absence of a solvent. The aliphatic alcohol is easily recovered and can be reused in a subsequent acylation reaction.

    摘要翻译: 本发明涉及通过在酸存在下使O,S-二烷基磷酰胺硫代磷酸酯与酰化剂反应制备O,S-二烷基硫代氨基硫代酯的酰基衍生物的改进方法,其中改进在于加入C4 C8酰化O,S-二烷基硫代氨基硫代磷酸酯,酰化剂和酸的混合物。 在本发明的一个实施方案中,酰化反应在不存在溶剂的情况下进行。 脂肪醇容易回收,可以在随后的酰化反应中重复使用。

    Process for making
N-(4-fluorophenyl)-N-(1-methylethyl)-2-�(5-trifuloromethyl)-1,3,4-thiadi
azol-2-yl)oxy!acetamide using an aprotic, aromatic solvent
    6.
    发明授权
    Process for making N-(4-fluorophenyl)-N-(1-methylethyl)-2-�(5-trifuloromethyl)-1,3,4-thiadi azol-2-yl)oxy!acetamide using an aprotic, aromatic solvent 失效
    使用非质子芳族溶剂制备N-(4-氟苯基)-N-(1-甲基乙基)-2 - [(5-三氟甲基)-1,3,4-噻二唑-2-基)氧基]乙酰胺的方法

    公开(公告)号:US5895818A

    公开(公告)日:1999-04-20

    申请号:US989597

    申请日:1997-12-12

    CPC分类号: C07D285/12

    摘要: The present invention relates to a process for making N-(4-fluorophenyl)-N-(1-methylethyl)-2-�(5-trifluoromethyl)-1,3,4-thiadiazol-2-yl)oxy!acetamide in an aprotic, aromatic solvent. The process includes the steps of: (a) reacting 2-(methylsulfonyl)-5-(trifluoromethyl)-1,3,4-thiadiazole with N-(4-fluorophenyl)-2-hydroxy-N-(1-methylethyl)acetamide in the presence of an aprotic, aromatic solvent to form an aqueous phase and an organic phase; (b) acidifying the phases, (c) separating the phases; and (d) recovering the N-(4-fluorophenyl)-N-(1-methylethyl)-2-�(5-trifluoromethyl)-1,3,4-thiadiazol-2-yl)oxy!acetamide from the organic phase.

    摘要翻译: 本发明涉及制备N-(4-氟苯基)-N-(1-甲基乙基)-2 - [(5-三氟甲基)-1,3,4-噻二唑-2-基)氧基]乙酰胺的方法 非质子,芳香族溶剂。 该方法包括以下步骤:(a)使2-(甲基磺酰基)-5-(三氟甲基)-1,3,4-噻二唑与N-(4-氟苯基)-2-羟基-N-(1-甲基乙基) 乙酰胺在非质子芳香族溶剂的存在下形成水相和有机相; (b)使相酸化,(c)分离相; 和(d)从有机相中回收N-(4-氟苯基)-N-(1-甲基乙基)-2 - [(5-三氟甲基)-1,3,4-噻二唑-2-基)氧基]乙酰胺 。

    Process for the manufacture of thiophosphoryl chloride
    9.
    发明授权
    Process for the manufacture of thiophosphoryl chloride 失效
    制备硫代磷酰氯的方法

    公开(公告)号:US06251350B1

    公开(公告)日:2001-06-26

    申请号:US09337088

    申请日:1999-06-21

    IPC分类号: C01B2510

    CPC分类号: C01B25/10

    摘要: The present invention relates to an improved process for the preparation of thiophosphoryl chloride which is useful as an intermediate for the synthesis of insecticidally active compounds. The improvement comprises the presence in the reaction mixture of a catalytic amount of a nitroxide free radical of the following general formula: wherein R1, R2, R3 and R4 represent an alkyl group.

    摘要翻译: 本发明涉及一种制备硫代磷酰氯的改进方法,其可用作合成杀虫活性化合物的中间体。 改进包括在反应混合物中存在催化量的以下通式的氮氧自由基:其中R1,R2,R3和R4表示烷基。

    Process for making 2-(methylthio)-5-(trifluoromethyl)-1,3,4-thiadiazole
using methyldithiocarbazinate with trifluoroacetic acid with selective
removal of 2,5-bis(methylthio)-1,3,4-thiadiazole
    10.
    发明授权
    Process for making 2-(methylthio)-5-(trifluoromethyl)-1,3,4-thiadiazole using methyldithiocarbazinate with trifluoroacetic acid with selective removal of 2,5-bis(methylthio)-1,3,4-thiadiazole 有权
    使用甲基二硫代肼基甲酸酯与三氟乙酸制备2-(甲硫基)-5-(三氟甲基)-1,3,4-噻二唑的方法,选择性除去2,5-二(甲硫基)-1,3,4-噻二唑

    公开(公告)号:US6034245A

    公开(公告)日:2000-03-07

    申请号:US215492

    申请日:1998-12-18

    IPC分类号: C07D285/12 C07D285/125

    CPC分类号: C07D285/125 Y02P20/582

    摘要: The present invention provides a process for making 2-(methylthio)-5-(trifluoromethyl)-1,3,4-thiadiazole. The process includes the steps of reacting methyidithiocarbazinate with trifluoroacetic acid, in the absence of phosphorus trichloride, to form a mixture of 2-(methylthio)-5-(trifluoromethyl)-1,3,4-thiadiazole and 2,5-bis-(methylthio)-1,3,4-thiadiazole. Further, the process of the present invention includes selectively removing the 2,5-bis-(methylthio)-1,3,4-thiadiazole by acidifying the reaction mixture, and then separating the aqueous and organic phases.

    摘要翻译: 本发明提供制备2-(甲硫基)-5-(三氟甲基)-1,3,4-噻二唑的方法。 该方法包括在不存在三氯化磷的情况下使甲基二硫代肼基甲酸酯与三氟乙酸反应,形成2-(甲硫基)-5-(三氟甲基)-1,3,4-噻二唑和2,5-双 (甲硫基)-1,3,4-噻二唑。 此外,本发明的方法包括通过酸化反应混合物,然后分离水相和有机相,选择性地除去2,5-双(甲硫基)-1,3,4-噻二唑。