IMPROVED PROCESS FOR THE PREPARATION OF ESTERS OF 1-H-PYRAZOLE-4-CARBOXYLIC ACIDS
    12.
    发明申请
    IMPROVED PROCESS FOR THE PREPARATION OF ESTERS OF 1-H-PYRAZOLE-4-CARBOXYLIC ACIDS 审中-公开
    制备1-H-吡唑-4-羧酸的酯的改进方法

    公开(公告)号:WO2012025469A1

    公开(公告)日:2012-03-01

    申请号:PCT/EP2011/064339

    申请日:2011-08-22

    CPC classification number: C07D231/14

    Abstract: Process for the manufacture of an ester of a 1-H-pyrazole-4-carboxylic acid of formula (I) wherein - R1 is H or an organic residue - R2 is H or an organic residue - R3 is H, an alkyl group having from 1 to 12 carbon atoms, an halogenated alkyl group having from 1 to 12 carbon atoms, an aralkyl group, an aryl group, a halogen. which comprises reacting a compound of formula (II): wherein R4 is C 1 -C 8 -alkyl, C 3 -C 8 -cycloalkyl, C 2 -C 8 -alkenyl, benzyl or phenyl,R1 and R3, are as defined above with a hydrazine of formula (III): R2NHNH 2 (III) wherein R2 is as defined above, in the presence of an organic solvent comprising at least one halogen.

    Abstract translation: 用于制备式(I)的1-H-吡唑-4-羧酸的酯的方法,其中-R 1是H或有机残基-R 2是H或有机残基-R 3是H,具有 1至12个碳原子,具有1至12个碳原子的卤代烷基,芳烷基,芳基,卤素。 其包括使式(II)的化合物:其中R 4是C 1 -C 8 - 烷基,C 3 -C 8 - 环烷基,C 2 -C 8 - 烯基,苄基或苯基,R 1和R 3如上所定义,与式 III):R2NHNH 2(III)其中R 2如上定义,在包含至少一个卤素的有机溶剂的存在下。

    PROCESS FOR THE PREPARATION OF ESTERS OF 1-SUBSTITUTED-3-FLUOROALKYL-PYRAZOLE-4-CARBOXYLIC ACIDS
    18.
    发明申请
    PROCESS FOR THE PREPARATION OF ESTERS OF 1-SUBSTITUTED-3-FLUOROALKYL-PYRAZOLE-4-CARBOXYLIC ACIDS 审中-公开
    1-取代-3-氟代甲基 - 吡唑-4-羧酸的酯的制备方法

    公开(公告)号:WO2012010692A1

    公开(公告)日:2012-01-26

    申请号:PCT/EP2011/062635

    申请日:2011-07-22

    CPC classification number: C07D231/14

    Abstract: Process for the manufacture of an ester or the respective free acid of a 1-substituted-3-fluoroalkyl-pyrazole-4-carboxylic acid of formula (I) wherein - Y is H, F or an alkyl group having from 1 to 12 carbon atoms which is optionally substituted by at least one halogen atom, an aralkyl group or an aryl group, - R 1 is H or an organic residue, - R 2 is H or an organic residue, which comprises submitting a compound of formula (II) wherein Y is as defined above - X is CI, Br or I, - R 1 is H or an organic residue, - R 2 is H or an organic residue, to a reduction reaction.

    Abstract translation: 用于制备式(I)的1-取代-3-氟烷基 - 吡唑-4-羧酸的酯或相应游离酸的方法,其中-Y是H,F或具有1至12碳的烷基 任选被至少一个卤素原子,芳烷基或芳基取代的原子,-R 1是H或有机残基,-R 2是H或有机残基,其包括将式(II)的化合物(其中Y 如上所定义 - X为Cl,Br或I,-R 1为H或有机残基,-R 2为H或有机残基,为还原反应。

    A METHOD FOR PRODUCING A CHEMICAL COMPOUND AND APPARATUS THEREFOR
    20.
    发明申请
    A METHOD FOR PRODUCING A CHEMICAL COMPOUND AND APPARATUS THEREFOR 审中-公开
    一种生产化学化合物的方法及其装置

    公开(公告)号:WO2016079122A1

    公开(公告)日:2016-05-26

    申请号:PCT/EP2015/076834

    申请日:2015-11-17

    Applicant: SOLVAY SA

    Inventor: BRAUN, Max Josef

    Abstract: The invention relates to a method for the manufacture of chemical compounds wherein corrosive and/ or abrasive starting compounds, catalysts, intermediates or target compounds are involved; and a suitable reactor. The method is performed in a reactor at least partially made from or at least partially coated with material which is resistant to the reaction mixture, but has a low heat transfer coefficient, and where heat is supplied by a heat exchanger from a material which has a high heat transfer coefficient and high resistance to corrosion and/or abrasion. Preferably, the reactor is coated or at least partially coated with a (chloro)fluorosubstituted material, e.g. PTFE, and the heat exchanger is preferably constructed from silicon carbide. For example, hydrochlorofluorocarbons can be manufactured using HF as a starting compound, and antimony halides as catalyst.

    Abstract translation: 本发明涉及一种制造化学化合物的方法,其中涉及腐蚀性和/或研磨性起始化合物,催化剂,中间体或目标化合物; 和合适的反应器。 该方法在至少部分由至少部分地由反应混合物制成或至少部分地涂覆有反应混合物的材料制成但具有低传热系数的反应器中进行,并且其中通过热交换器从具有 传热系数高,耐腐蚀和/或耐磨性高。 优选地,反应器被涂覆或至少部分地涂覆有(氯)氟取代的材料,例如。 PTFE,并且热交换器优选由碳化硅构成。 例如,可以使用HF作为起始化合物和卤化锑作为催化剂来制造氢氯氟烃。

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