Process for the preparation of 3-substituted 4-cyano-pyrrole compounds
    2.
    发明授权
    Process for the preparation of 3-substituted 4-cyano-pyrrole compounds 失效
    制备3-取代的4-氰基 - 吡咯化合物的方法

    公开(公告)号:US06204397B1

    公开(公告)日:2001-03-20

    申请号:US08086602

    申请日:1993-07-01

    IPC分类号: C07D31752

    CPC分类号: C07D317/46

    摘要: A process for the preparation of 3-substituted 4-cyano-pyrrole compounds of the formula (I) in which Ar has the meaning given in the description, by reaction in a 1st stage of bromides (II) Ar—Br  (II) with acrylonitrile in the presence of a solvent and a suitable reaction auxiliary to give acrylonitrile derivatives (III) Ar—CH═CH—CN  (III) and in a 2nd stage with a phenylsulphonylmethyl isocyanide (IV) Ph—SO2—CH2—CN  (IV) in the presence of a solvent and optionally in the presence of a suitable reaction auxiliary, characterised in that the the 1st stage is carried out in the presence of a palladium catalyst and the 2nd stage in the presence of a 1.2- to 1.8-fold molar excess of alkali metal alcoholate or alkali metal hydroxide.

    摘要翻译: 制备式(I)的3-取代的4-氰基 - 吡咯化合物的方法,其中Ar具有在描述中给出的含义,通过在第一阶段的溴化物(II)与丙烯腈在溶剂存在下反应 和适当的反应助剂,在溶剂存在下,任选地在合适的反应助剂的存在下,在丙烯腈衍生物(III)中和在第二阶段中与苯基磺酰基甲基异氰化物(IV)反应,其特征在于携带第一阶段 在钯催化剂存在下进行,第二阶段在1.2至1.8倍摩尔过量的碱金属醇化物或碱金属氢氧化物的存在下进行。

    Process for the preparation of 3-substituted 4-cyano-pyrrole compounds
    3.
    发明授权
    Process for the preparation of 3-substituted 4-cyano-pyrrole compounds 失效
    制备3-取代的4-氰基 - 吡咯化合物的方法

    公开(公告)号:US5258526A

    公开(公告)日:1993-11-02

    申请号:US843480

    申请日:1992-02-28

    CPC分类号: C07D405/04 C07D207/34

    摘要: A process for the preparation of 3-substituted 4-cyanopyrrole compounds of the formula (I) ##STR1## in which Ar has the meaning given in the description, by reaction in a 1st stage of bromides (II)Ar--Br (II)with acrylonitrile in the presence of a solvent and a suitable reaction auxiliary to give acrylonitrile derivatives (III)Ar--CH.dbd.CH--CN (III)and in a 2nd stage with a phenylsulphonylmethyl isocyanide (IV)Ph--SO.sub.2 --CH.sub.2 --CN (IV)in the presence of a solvent and optionally in the presence of a suitable reaction auxiliary, characterised in that the 1st stage is carried out in the presence of a palladium catalyst and the 2nd stage in the presence of a 1.2- to 1.8-fold molar excess of alkali metal alcoholate or alkali metal hydroxide.

    摘要翻译: 其中Ar具有在描述中给出的含义,通过在溴化物(II)Ar-Br(II)的第一阶段中的反应制备式(I)所示的3-取代的4-氰基吡咯化合物的方法, 与丙烯腈在溶剂和适当的反应助剂存在下反应,得到丙烯腈衍生物(III)Ar-CH = CH-CN(III),第二阶段与苯基磺酰基甲基异氰化物(Ⅳ)Ph-SO2-CH2-CN( IV)在溶剂存在下,任选地在合适的反应助剂的存在下,其特征在于第一阶段在钯催化剂存在下进行,第二阶段在1.2-1.8倍的存在下进行 过量的碱金属醇化物或碱金属氢氧化物。

    Process for the manufacture of sulfonylaminocarbonyl triazolinones and
salts thereof under pH controlled conditions
    4.
    发明授权
    Process for the manufacture of sulfonylaminocarbonyl triazolinones and salts thereof under pH controlled conditions 有权
    在pH控制条件下制备磺酰氨基羰基三唑啉酮及其盐的方法

    公开(公告)号:US6147222A

    公开(公告)日:2000-11-14

    申请号:US472672

    申请日:1999-12-27

    IPC分类号: C07D249/12

    CPC分类号: C07D249/12

    摘要: The present invention relates to a process for manufacturing sulfonylaminocarbonyl triazolinones and salts thereof, which are herbicidally active compounds, wherein the improvement comprises conducting the conversion reaction of the sulfonylaminocarbonyl triazolinone to a salt thereof under pH controlled conditions. In particular, this invention relates to the conversion of a substituted triazolinone to a sulfonylaminocarbonyl triazolinone, and without the isolation of this intermediate product, the sulfonylaminocarbonyl triazolinone is then converted to a salt thereof.

    摘要翻译: 本发明涉及作为除草活性化合物的磺酰基氨基羰基三唑啉酮及其盐的制备方法,其中改进包括在pH控制条件下进行磺酰氨基羰基三唑啉酮与其盐的转化反应。 特别地,本发明涉及取代的三唑啉酮转化为磺酰基氨基羰基三唑啉酮,并且不分离该中间产物,然后将磺酰基氨基羰基三唑啉酮转化为其盐。

    Process for preparing 4-amino-1,2,4-triazolin-5-ones
    5.
    发明授权
    Process for preparing 4-amino-1,2,4-triazolin-5-ones 有权
    制备4-氨基-1,2,4-三唑啉-5-酮的方法

    公开(公告)号:US5912354A

    公开(公告)日:1999-06-15

    申请号:US210321

    申请日:1998-12-11

    IPC分类号: C07D249/12

    CPC分类号: C07D249/12

    摘要: The present invention is related to an improved process for the commercial preparation of substituted aminotriazolinones, which are known intermediates in the preparation of herbicidal active compounds. In particular, this invention relates to the preparation of 4-amino-1,2,4-triazolin-5-ones, and more particularly to the preparation of 3-isopropyl-4-aminotriazolinone. The process of the invention includes reacting an oxadiazolinone with hydrazine hydrate in the absence of a solvent. In a preferred embodiment, the hydrazine hydrate is mixed with a basic compound, preferably aqueous sodium hydroxide.

    摘要翻译: 本发明涉及商业上制备取代氨基三唑啉酮的改进方法,其是制备除草活性化合物的已知中间体。 特别地,本发明涉及4-氨基-1,2,4-三唑啉-5-酮的制备,更具体地说涉及3-异丙基-4-氨基三唑啉酮的制备。 本发明的方法包括在不存在溶剂的情况下使恶二唑啉酮与水合肼反应。 在优选的实施方案中,将水合肼与碱性化合物,优选氢氧化钠水溶液混合。

    Process for the manufacture of substituted triazolinones
    8.
    发明授权
    Process for the manufacture of substituted triazolinones 有权
    制备取代的三唑啉酮的方法

    公开(公告)号:US06197971B1

    公开(公告)日:2001-03-06

    申请号:US09472482

    申请日:1999-12-27

    IPC分类号: C07D24912

    CPC分类号: C07D249/12

    摘要: The present invention relates to a process for manufacturing substituted triazolinones, which are intermediates in the preparation of herbicidally active compounds. In particular, this invention relates to the alkylation of a non-alkylated triazolinone intermediate product, wherein the improvement comprises conducting the alkylation reaction under pH controlled conditions. In a preferred embodiment, the invention relates to the preparation of a 5-alkoxy(or aryloxy)-2,4-dihydro-3H-1,2,4-triazol-3-one, and the alkylation of this non-alkylated triazolinone intermediate product, to produce a 5-alkoxy(or aryloxy)-4-alkyl-2,4-dihydro-3H-1,2,4-triazol-3-one.

    摘要翻译: 本发明涉及一种制备取代三唑啉酮的方法,它是制备除草活性化合物的中间体。 特别地,本发明涉及非烷基化三唑啉酮中间产物的烷基化,其中改进包括在pH控制条件下进行烷基化反应。 在优选的实施方案中,本发明涉及5-烷氧基(或芳氧基)-2,4-二氢-3H-1,2,4-三唑-3-酮的制备,并且该非烷基化的三唑啉酮的烷基化 中间产物,生成5-烷氧基(或芳氧基)-4-烷基-2,4-二氢-3H-1,2,4-三唑-3-酮。

    Process for the preparation of
2-(methylsulfonyl)-5-(trifluoromethyl)-1,3,4-thiadiazole (TDA sulfone)
    9.
    发明授权
    Process for the preparation of 2-(methylsulfonyl)-5-(trifluoromethyl)-1,3,4-thiadiazole (TDA sulfone) 有权
    制备2-(甲基磺酰基)-5-(三氟甲基)-1,3,4-噻二唑(TDA砜)的方法

    公开(公告)号:US6031108A

    公开(公告)日:2000-02-29

    申请号:US153920

    申请日:1998-09-16

    CPC分类号: C07D285/125

    摘要: The present invention provides a process for making thiadiazole sulfones. In particular, the present process is used to make 2-(methylsulfonyl)-5-(trifluoromethyl)-1,3,4-thiadiazole using catalytic oxidation in the presence of a suitable oxidizing agent. The catalyst system used for the oxidation reaction is a mixture of glacial acetic acid and a tungsten catalyst. The tungsten catalyst is preferably selected from the group consisting of sodium tungstate, potassium tunstate, and tungstic acid.

    摘要翻译: 本发明提供了制备噻二唑砜的方法。 特别地,本方法用于在合适的氧化剂存在下使用催化氧化制备2-(甲基磺酰基)-5-(三氟甲基)-1,3,4-噻二唑。 用于氧化反应的催化剂体系是冰醋酸和钨催化剂的混合物。 钨催化剂优选选自钨酸钠,焦磷酸钾和钨酸。

    Process for producing
N-(4-fluorophenyl)-N-(1-methylethyl)-2-�(5-trifluoromethyl-1,3,4-thiadia
zol-2-yl)oxy!acetamide
    10.
    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。