Process for preparing O-alkyl, O-alkylphosphorochloridothioates
    1.
    发明授权
    Process for preparing O-alkyl, O-alkylphosphorochloridothioates 失效
    O-烷基,O-烷基磷酰氯化物的制备方法

    公开(公告)号:US5948930A

    公开(公告)日:1999-09-07

    申请号:US927850

    申请日:1997-09-11

    IPC分类号: C07F9/20 C07F9/16

    CPC分类号: C07F9/20

    摘要: The invention relates to process for the preparation of an O-alkyl, O-alkyl phosphorochloridothioate by 1) reacting A) a thiophosphoryl halide with B) an alcohol, in the presence of C) a tertiary amine acid acceptor and D) a solvent, and 2) reacting the resultant product with a second alcohol, different from the alcohol used in step 1). In the preferred embodiment, the intermediate product is not isolated before reaction with the second alcohol.

    摘要翻译: 本发明涉及通过以下步骤制备O-烷基,O-烷基氯代硫代磷酸酯的方法:1)在C)叔胺酸受体和D)溶剂的存在下,使A)硫代磷酰卤与B)醇反应, 和2)使所得产物与不同于步骤1)中使用的醇的第二醇反应。 在优选的实施方案中,中间产物在与第二醇反应之前不分离。

    Process for producing
N-(4-fluorophenyl)-N-(1-methylethyl)-2-�(5-trifluoromethyl-1,3,4-thiadia
zol-2-yl)oxy!acetamide
    2.
    发明授权
    Process for producing N-(4-fluorophenyl)-N-(1-methylethyl)-2-�(5-trifluoromethyl-1,3,4-thiadia zol-2-yl)oxy!acetamide 失效
    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:US5792872A

    公开(公告)日:1998-08-11

    申请号:US989564

    申请日:1997-12-12

    CPC分类号: C07D285/13

    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, which process includes the steps of reacting 2-(methylsulfonyl)-5-(trifluoromethyl)-1,3,4,-thiadiazole with N-(4-fluorophenyl)-2-hydroxy-N(1-methylethyl)acetamide in an aprotic, aromatic solvent with aqueous alkali to form an aqueous phase and an organic phase, separating the aqueous and organic phases and recovering the N-(4-fluorophenyl)-N-(1-methylethyl)-2-�(5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl)oxy!acetamide from the organic phase. A preferred solvent and aqueous alkali are toluene and aqueous sodium hydroxide, respectively.

    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 ,该方法包括使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)乙酰胺反应的步骤 非质子芳族溶剂与水溶液形成水相和有机相,分离水相和有机相,并回收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。 优选的溶剂和碱水溶液分别是甲苯和氢氧化钠水溶液。

    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
    4.
    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 。

    Method to prepare trimethylsulfonium halides
    5.
    发明授权
    Method to prepare trimethylsulfonium halides 失效
    制备三甲基锍卤化物的方法

    公开(公告)号:US5118842A

    公开(公告)日:1992-06-02

    申请号:US615829

    申请日:1990-11-16

    IPC分类号: C07C381/12

    CPC分类号: C07C381/12

    摘要: Trimethylsulfonium halides are made by reacting dimethyl sulfide and a methyl halide in the presence of a solvent mixture which includes water and a water-immiscible organic solvent. The organic water-immiscible solvent is generally present in an amount which is at least 40% but no more than 95% of the total solvent mixture. The reaction is preferably conducted under pressure.

    摘要翻译: 三甲基锍卤化物通过二甲基硫醚和甲基卤化物在包括水和与水不混溶的有机溶剂的溶剂混合物存在下反应制备。 有机水不混溶溶剂的存在量通常为总溶剂混合物的至少40%但不超过95%。 反应优选在压力下进行。

    Process for the production of dialkyl pyrimidylphosphates
    7.
    发明授权
    Process for the production of dialkyl pyrimidylphosphates 失效
    制备二乙基嘧啶基磷酸盐的方法

    公开(公告)号:US5502190A

    公开(公告)日:1996-03-26

    申请号:US151322

    申请日:1993-11-12

    IPC分类号: C07F9/6512

    CPC分类号: C07F9/65125

    摘要: O,O-dialkyl pyrimidylphosphates are made by reacting an O,O-dialkyl phosphorohalothioate with a 5-hydroxypyrimidine in the presence of an imidazole phase transfer catalyst, an aromatic solvent and an alkali metal hydroxide at a pH of from about 8 to about 12 and a temperature of up to about 70.degree. C. The products of this process are obtained in high yield. These compounds are useful as pesticides and insecticides.

    摘要翻译: O,O-二烷基嘧啶基磷酸酯通过在咪唑相转移催化剂,芳族溶剂和碱金属氢氧化物存在下,在约8至约12的pH下,使O,O-二烷基硫代磷酸酯与5-羟基嘧啶反应制备 并且温度高达约70℃。该方法的产物以高产率获得。 这些化合物可用作农药和杀虫剂。