Method of producing glyphosate or a salt thereof
    2.
    发明授权
    Method of producing glyphosate or a salt thereof 失效
    制备草甘膦或其盐的方法

    公开(公告)号:US06867326B1

    公开(公告)日:2005-03-15

    申请号:US10031234

    申请日:2000-07-21

    IPC分类号: C07B61/00 C07F9/38 C07F9/22

    CPC分类号: C07F9/3813

    摘要: In a process for preparing N-phosphonomethylglycine or a salt thereof by bringing phosphonomethyliminodiacetic acid or a salt thereof into contact with at least one oxygen-containing oxidant in the presence of a heterogeneous catalyst, the heterogeneous catalyst comprises at least one silicate.

    摘要翻译: 在非均相催化剂存在下,通过使膦酰甲基亚氨基二乙酸或其盐与至少一种含氧氧化剂接触来制备N-膦酰基甲基甘氨酸或其盐的方法中,所述多相催化剂包含至少一种硅酸盐。

    Method for producing 1 substituted 5-chloro-4 methly pyrazoles
    4.
    发明授权
    Method for producing 1 substituted 5-chloro-4 methly pyrazoles 失效
    1取代的5-氯-4-甲基吡唑的制备方法

    公开(公告)号:US07002023B2

    公开(公告)日:2006-02-21

    申请号:US10381411

    申请日:2001-09-28

    IPC分类号: C07D231/16 C07D231/18

    CPC分类号: C07D231/16 C07D231/22

    摘要: The present invention relates to a process for preparing 1-substituted 5-chloro-4-methylpyrazoles of the general formula I with the meaning for R stated in claim 1, in which a 4-methylpyrazole of the formula II is reacted with chlorine, the resulting mixture of monochlorinated and dichlorinated product is fractionated by distillation, and subsequently the dichlorinated compound is dehalogenated to compound II and returned to the reaction with chlorine.

    摘要翻译: 本发明涉及一种制备通式I的化合物1-(化学式id =“CHEM-US-00001”num =“000”的1-取代的5-氯-4-甲基吡唑的方法

    Method of preparing 1,2-dimethyl-3,5-diarylpyrazolium methylsulfates
    5.
    发明授权
    Method of preparing 1,2-dimethyl-3,5-diarylpyrazolium methylsulfates 失效
    1,2-二甲基-3,5-二芳基吡唑甲基硫酸盐的制备方法

    公开(公告)号:US5847154A

    公开(公告)日:1998-12-08

    申请号:US981925

    申请日:1998-01-13

    IPC分类号: C07D231/12 C07D231/10

    CPC分类号: C07D231/12

    摘要: A process for the preparation of 1,2-dimethyl-3,5-diaryl-pyrazolium methylsulfates of the formula I ##STR1## where R.sup.1 and R.sup.2 independently of one another are hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, nitro, C.sub.1 -C.sub.4 -haloalkyl or aryl all of which are inert under the reaction conditions, in which 1-methyl-3,5-diarylpyrazoles of the formula II ##STR2## where R.sup.1 and R.sup.2 have the abovementioned meanings are reacted with a) methanol and SO.sub.3, b) methanol and sulfuric acid or optionally, c) methanol and methylsulfuric acid elevated temperatures.

    摘要翻译: PCT No.PCT / EP96 / 03316 Sec。 371日期1998年1月13日 102(e)1998年1月13日PCT PCT 1996年7月26日PCT公布。 出版物WO97 / 06148 日期1997年2月20日制备式Ⅰ的1,2-二甲基-3,5-二芳基 - 吡唑鎓甲基硫酸盐的方法,其中R 1和R 2彼此独立地是氢,C 1 -C 4烷基, C 3 -C 8 - 环烷基,C 1 -C 4 - 烷氧基,卤素,硝基,C 1 -C 4卤代烷基或芳基,其中所有这些在反应条件下是惰性的,其中式II的1-甲基-3,5-二芳基吡唑

    Method for producing substituted pyrazoles
    7.
    发明授权
    Method for producing substituted pyrazoles 有权
    制备取代的吡唑的方法

    公开(公告)号:US06229022B1

    公开(公告)日:2001-05-08

    申请号:US09445766

    申请日:1999-12-13

    IPC分类号: C07D23110

    CPC分类号: C07D231/12

    摘要: Pyrazole derivatives are prepared by reacting carbonyl compounds R1—C(O)—CH(R2)—CH2R3 with hydrazine, its hydrate or its salts in 30 to 100% by weight sulfuric acid in the presence of catalytic amounts of iodine or of an iodine compound.

    摘要翻译: 吡唑衍生物通过羰基化合物R1-C(O)-CH(R2)-CH2R3与肼,其水合物或其盐在30至100重量%的硫酸中,在催化量的碘或碘 复合。

    Preparation of ammonium salts of 3-isopropyl-2, 1,
3-benzothia-diazin-4-one 2,2-dioxide
    8.
    发明授权
    Preparation of ammonium salts of 3-isopropyl-2, 1, 3-benzothia-diazin-4-one 2,2-dioxide 失效
    3-异丙基-2,3-苯并噻唑-4-酮2,2-二氧化铵的铵盐的制备

    公开(公告)号:US5795983A

    公开(公告)日:1998-08-18

    申请号:US894157

    申请日:1997-08-15

    IPC分类号: A01N43/00 C07D285/16

    CPC分类号: C07D285/16

    摘要: A process for preparing salts of 3-isopropyl-2,1,3-benzothia-diazin-4-one 2,2-dioxide of the general formula I ##STR1## (R.sup.1 -R.sup.4 =H, lower alkyl, lower hydroxyalkyl) by reacting bentazone (IIa) with an amine IIIa in an organic solvent, by reacting bentazone (IIa) with an amine IIIa or an ammonium salt IIIb in a virtually water-immiscible organic solvent and taking up the salt I in water or by reacting bentazone (IIa) with an ammonium salt IIIb or bentazone-sodium (IIb) with an ammonium salt IIIc, in each case in water.

    摘要翻译: PCT No.PCT / EP96 / 00420 Sec。 371日期:1997年8月15日 102(e)日期1997年8月15日PCT提交1996年2月1日PCT公布。 WO96 / 25407 PCT出版物 日期:1996年8月22日制备通式Ⅰ(Ⅰ)的3-异丙基-2,1,3-苯并噻吩-2-酮2,2-二氧化物的盐的方法(R1-R4 = H (IIa)与胺IIIa在有机溶剂中反应,通过在实际上与水不混溶的有机溶剂中将苯扎酮(IIa)与胺IIIa或铵盐IIIb反应并吸收盐 或者通过使苯扎酮(IIa)与铵盐IIIb或苯扎他酮钠(IIb)与铵盐IIIc反应,在每种情况下都在水中。

    Process for preparing N-substituted pyrazoles
    9.
    发明授权
    Process for preparing N-substituted pyrazoles 失效
    制备N-取代吡唑的方法

    公开(公告)号:US5840913A

    公开(公告)日:1998-11-24

    申请号:US913177

    申请日:1997-08-20

    IPC分类号: C07D231/12 C07D521/00

    摘要: A process for the preparation of an N-alkyl- or N-phenylalkyl-substituted pyrazole I by reacting the corresponding N-unsubstituted pyrazole II with an alcohol III of the formula R.sup.1 --OH where R.sup.1 is the same alkyl or phenylalkyl group to be added to the unsubstituted nitrogen group --NH-- of the pyrazole reactant. Both of the reactants, i.e. the pyrazole II and alcohol III compounds, are catalytically reacted in the liquid phase in a molar ratio of from 0.001:1 to 1:1, at temperatures of 50.degree.-400.degree. C. and under a subatmosheric pressure of from 0.8 bar up to a superatmospheric pressure of 250 bar. The catalyst required for this liquid phase reaction is selected as being at least one or more non-heterogeneous acid catalysts, their alkyl esters or their acid anhydrides.

    摘要翻译: PCT No.PCT / EP96 / 00790 371日期1997年8月20日 102(e)日期1997年8月20日PCT 1996年2月27日PCT公布。 公开号WO96 / 27589 日本1996年9月12日制备N-烷基 - 或N-苯基烷基取代的吡唑I的方法,通过使相应的N-未取代的吡唑II与式R1-OH的醇III反应,其中R 1是相同的烷基或 苯基烷基加入到吡唑反应物的未取代的氮基-NH-中。 两种反应物,即吡唑II和醇III化合物,在液相中以摩尔比为0.001:1至1:1,在50-400℃的温度和低于大气压下催化反应 从0.8巴到250巴的超大气压。 该液相反应所需的催化剂选自至少一种或多种非均相酸催化剂,它们的烷基酯或其酸酐。

    Preparation of optically active 2-halopropionic acids
    10.
    发明授权
    Preparation of optically active 2-halopropionic acids 失效
    光学活性2-卤代丙酸的制备

    公开(公告)号:US5763659A

    公开(公告)日:1998-06-09

    申请号:US860085

    申请日:1997-07-01

    CPC分类号: C07B57/00 C07C51/09

    摘要: The present invention relates to a process for the preparation of optically active 2--halopropionic acids, in which the corresponding optically active alkyl 2--halopropionates are caused to react with a carboxylic acid at elevated temperature in a transacylation reaction with the formation of the optically active 2--halopropionic acid and the alkyl carboxylate, and the optically active 2--halopropionic acid obtained is separated from the reaction mixture. The optically active products produced are important intermediates for the preparation of plant protectants and pharmaceuticals.

    摘要翻译: PCT No.PCT / EP96 / 00012 Sec。 371日期1997年1月7日 102(e)日期1997年1月7日PCT提交1996年1月4日PCT公布。 公开号WO96 / 22272 日期:1996年7月25日本发明涉及一种制备光学活性2-卤代丙酸的方法,其中使相应的光学活性烷基2-卤代丙酸酯与羧酸在升高的温度下在与 从反应混合物中分离光学活性2-卤代丙酸和羧酸烷基酯的形成物和所得光学活性2-卤代丙酸。 所生产的光学活性产品是制备植物保护剂和药物的重要中间体。