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    Process for preparing 2-(aminomethylidene)-4,4-difluoro-3-oxobutyric esters
    21.
    发明授权
    Process for preparing 2-(aminomethylidene)-4,4-difluoro-3-oxobutyric esters 有权
    制备2-（氨基亚甲基）-4,4-二氟-3-氧代丁酸酯的方法

    公开(公告)号：US08592578B2

    公开(公告)日：2013-11-26

    申请号：US13653615

    申请日：2012-10-17

    Applicant: BASF SE

    Inventor： Thomas Zierke ,  Volker Maywald ,  Michael Rack ,  Sebastian Peer Smidt ,  Michael Keil ,  Bernd Wolf ,  Christopher Koradin

    IPC: C07D231/14 ,  C07D265/30 ,  C07D295/145

    CPC classification number: C07D231/14 ,  C07C229/30 ,  C07D295/145

    Abstract: The present invention relates to a process for preparing difluoromethyl-substituted pyrazol-4-ylcarboxylic acids and their esters, 2-(aminomethylidene)-4,4-difluoro-3-oxobutteric esters of the formula (I) in which R1, R2 and R3 independently of one another are C1-C6-alkyl, C1-C6-haloalkyl, C2-C6-alkenyl, C3-C10-cycloalkyl or benzyl or NR2R3 is a 5- to 10-membered heterocyclic radical, to a process for preparing compounds of the formula (I) wherein an appropriate 3-aminoacrylic ester is reacted with difluoroacetyl fluoride and to the use of compounds of the formula (I) in the process for preparing difluoromethyl-substituted pyrazol-4-ylcarboxylic acids and their esters.

    Abstract translation: 本发明涉及式（I）的二氟甲基取代的吡唑-4-基羧酸及其酯，2-（氨基亚甲基）-4,4-二氟-3-氧代苦味酯的方法，其中R 1，R 2和 R 3彼此独立地是C 1 -C 6 - 烷基，C 1 -C 6 - 卤代烷基，C 2 -C 6 - 烯基，C 3 -C 10 - 环烷基或苄基或NR 2 R 3是5-至10-元杂环基， 式（I）的化合物，其中适当的3-氨基丙烯酸酯与二氟乙酰氟反应，以及在制备二氟甲基取代的吡唑-4-基羧酸及其酯的方法中使用式（I）的化合物。

    CRYSTALLINE FORMS OF 1-(1,2-DIMETHYLPROPYL)-N-ETHYL-5-METHYL-N-PYRIDAZIN-4-YL-PYRAZOLE-4-CARBOXAMIDE
    25.
    发明申请
    CRYSTALLINE FORMS OF 1-(1,2-DIMETHYLPROPYL)-N-ETHYL-5-METHYL-N-PYRIDAZIN-4-YL-PYRAZOLE-4-CARBOXAMIDE 有权

    公开(公告)号：US20220024898A1

    公开(公告)日：2022-01-27

    申请号：US17311403

    申请日：2020-01-10

    Applicant: BASF SE

    Inventor： Joachim Gebhardt ,  Martin Viertelhaus ,  Tiziana Chiodo ,  Michael Rack ,  Eric George Klauber ,  Wen Xu ,  Roland Goetz ,  Florian Vogt ,  Birgit Gockel ,  Sebastian Soergel

    IPC: C07D403/12 ,  A01N43/58 ,  A01P7/04

    Abstract: The present invention relates to a novel crystalline form of 1-(1,2-dimethylpropyl)-N-ethyl-5-methyl-N-pyridazin-4-yl-pyrazole-4-carboxamide recently assigned the common name dimpropyridaz. The invention also relates to the use of the crystalline form B for combating invertebrate pests and to formulations for plant protection which contain the crystalline form B of 1-(1,2-dimethylpropyl)-N-ethyl-5-methyl-N-pyridazin-4-yl-pyrazole-4-carboxamide. The crystalline form B according to the present invention can be identified by powder X-ray diffractometry on the basis of its powder X-ray diffraction diagram, hereinafter also termed powder X-ray diffraction pattern or PXRD pattern, of the polymorph form B recorded using Cu—Kα radiation (1.54178 Å) at 25° C. displays the 3 following reflections, quoted as 2θ values: 20.69±0.10°, 24.15±0.10° and 30.52±0.10°. In addition to these 3 reflections, the polymorph B of the present invention may display in such a PXRD pattern one or more, in particular at least 2, often at least 4, in particular at least 6 or at least 8 reflections and especially all of the reflections quoted hereinafter as 2θ values: 7.99±0.10°, 10.07±0.10°, 12.38±0.10°, 15.31±0.10°, 15.97±0.10°, 16.50±0.10°, 18.03±0.10°, 19.29±0.10°, 20.22±0.0.10°, 20.96±0.10°, 23.40±0.10°, 23.70±0.10°, 26.09±0.10°, 27.26±0.10° and 32.91±0.10°.

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