Process for preparing N-substituted 1H-pyrazole-5-carbonylchloride compounds
    84.
    发明授权
    Process for preparing N-substituted 1H-pyrazole-5-carbonylchloride compounds 有权
    制备N-取代的1H-吡唑-5-碳酰氯化合物的方法

    公开(公告)号:US08921567B2

    公开(公告)日:2014-12-30

    申请号:US14235556

    申请日:2012-08-10

    IPC分类号: C07D401/04

    CPC分类号: C07D401/04

    摘要: The present invention relates to a process for preparing an N-substituted 1H-pyrazole-5-carbonylchloride compound of the formula (I) in which R1 is hydrogen, halogen, cyano, C1-C6-alkyl, C1-C6-fluoroalkyl, C3-C8-cycloalkyl, C3-C8-fluorocycloalkyl, C2-C6-alkenyl, C2-C6-fluoroalkenyl, C1-C6-alkoxy, C1-C6-fluoroalkoxy, C1-C4-fluoroalkoxy-C1-C4-alkyl, phenyl and the like; each R2 is independently selected from halogen, C1-C6-alkyl, C1-C6-fluoroalkyl, C3-C8-cycloalkyl, C3-C8-fluorocycloalkyl, C2-C6-alkenyl, C2-C6-fluoroalkenyl, C1-C6-alkoxy, phenyl and the like; r is 0, 1, 2, 3 or 4; comprising the steps of i) deprotonating a compound of the formula (II) in which the variables R1, R2 and r are each as defined above, with a base selected from lithium-organic base having a carbon or nitrogen bound lithium or with a magnesium-organic base having a carbon bound magnesium; and ii) subjecting the product obtained in step (i) to a chlorocarbonylation by reacting it with a reagent selected from the group consisting of phosgene or a phosgene equivalent, to obtain a compound of formula (I).

    摘要翻译: 本发明涉及制备式(I)的N-取代的1H-吡唑-5-碳酰氯化合物的方法,其中R1是氢,卤素,氰基,C1-C6-烷基,C1-C6-氟烷基,C3 C 1-8 - 环烷基,C 3 -C 8 - 氟代环烷基,C 2 -C 6 - 烯基,C 2 -C 6 - 氟烯基,C 1 -C 6 - 烷氧基,C 1 -C 6 - 氟烷氧基,C 1 -C 4 - 氟烷氧基-C 1 -C 4烷基,苯基和 喜欢; 每个R 2独立地选自卤素,C 1 -C 6 - 烷基,C 1 -C 6 - 氟代烷基,C 3 -C 8 - 环烷基,C 3 -C 8 - 氟代环烷基,C 2 -C 6 - 烯基,C 2 -C 6 - 氟烯基,C 1 -C 6烷氧基, 苯基等; r为0,1,2,3或4; 包括以下步骤:i)将其中变量R1,R2和r各自如上定义的式(II)化合物与选自具有碳或氮键合的锂的锂基或与镁结合的碱的碱 具有碳结合镁的无机碱; 和ii)通过使步骤(i)中获得的产物与选自光气或光气当量的试剂反应来进行氯羰化反应,得到式(I)化合物。

    Process for preparing N-substituted 1H-pyrazole-5-carbonylchloride compounds

    公开(公告)号:US20140163234A1

    公开(公告)日:2014-06-12

    申请号:US14235556

    申请日:2012-08-10

    IPC分类号: C07D401/04

    CPC分类号: C07D401/04

    摘要: The present invention relates to a process for preparing an N-substituted 1H-pyrazole-5-carbonylchloride compound of the formula (I) in which R1 is hydrogen, halogen, cyano, C1-C6-alkyl, C1-C6-fluoroalkyl, C3-C8-cycloalkyl, C3-C8-fluorocycloalkyl, C2-C6-alkenyl, C2-C6-fluoroalkenyl, C1-C6-alkoxy, C1-C6-fluoroalkoxy, C1-C4-fluoroalkoxy-C1-C4-alkyl, phenyl and the like; each R2 is independently selected from halogen, C1-C6-alkyl, C1-C6-fluoroalkyl, C3-C8-cycloalkyl, C3-C8-fluorocycloalkyl, C2-C6-alkenyl, C2-C6-fluoroalkenyl, C1-C6-alkoxy, phenyl and the like; r is 0, 1, 2, 3 or 4; comprising the steps of i) deprotonating a compound of the formula (II) in which the variables R1, R2 and r are each as defined above, with a base selected from lithium-organic base having a carbon or nitrogen bound lithium or with a magnesium-organic base having a carbon bound magnesium; and ii) subjecting the product obtained in step (i) to a chlorocarbonylation by reacting it with a reagent selected from the group consisting of phosgene or a phosgene equivalent, to obtain a compound of formula (I).

    Process for manufacturing 5-formyl-pyridine-2,3-dicarboxylic acid esters
    87.
    发明授权
    Process for manufacturing 5-formyl-pyridine-2,3-dicarboxylic acid esters 有权
    5-甲酰基 - 吡啶-2,3-二羧酸酯的制备方法

    公开(公告)号:US08629279B2

    公开(公告)日:2014-01-14

    申请号:US13133013

    申请日:2009-12-07

    IPC分类号: C07D213/48 C07D213/55

    CPC分类号: C07D213/80

    摘要: A process for manufacturing a 5-formyl-pyridine-2,3-dicarboxylic acid ester (I) wherein Z is hydrogen or halogen; Z1 is hydrogen, halogen, cyano or nitro and R1, R2 are independently C1-C10-alkyl, comprising the steps of (i) reacting a compound of formula (II), wherein the symbols are as in formula (I), with a nitrosation agent (III) R3—O—N═O (III) wherein R3 is C1-C8-alkyl, in the presence of an alkali metal or alkaline earth metal alcoholates or carbonates in a polar aprotic solvent at a temperature of from −45 to 40° C., to obtain an oxime compound (IV) where Z, Z1, R1 and R2 are as in formula (I), and (ii) reacting oxime compound (IV) with an aliphatic C1-C10-aldehyde in the presence of a Lewis acid at a temperature in the range of from 0 to 100° C. The compounds of formula (I) are useful intermediates in the synthesis of herbicidal imidazolinones, like imazamox.

    摘要翻译: 制备其中Z为氢或卤素的5-甲酰基 - 吡啶-2,3-二羧酸酯(I)的方法; Z1是氢,卤素,氰基或硝基,R1,R2独立地是C1-C10-烷基,包括以下步骤:(ⅰ)使符号如式(I)所示的式(ⅱ)化合物与式 在碱金属或碱土金属醇盐或碳酸盐存在下,在极性非质子溶剂中,温度为-45〜40℃的亚硝化剂(Ⅲ)R3-ON = O(Ⅲ)其中R3为C1-C8-烷基 ℃,得到其中Z,Z 1,R 1和R 2如式(I)中的肟化合物(Ⅳ),和(ⅱ)使肟化合物(Ⅳ)与脂族C 1 -C 10 - 醛在 在0至100℃的温度范围内的路易斯酸。式(I)化合物是合成除草咪唑啉酮如咪唑氧化物的有用中间体。

    Process for preparing fluoromethyl-substituted heterocyclic compounds
    90.
    发明授权
    Process for preparing fluoromethyl-substituted heterocyclic compounds 失效
    氟甲基取代的杂环化合物的制备方法

    公开(公告)号:US07994207B2

    公开(公告)日:2011-08-09

    申请号:US12519032

    申请日:2007-12-20

    IPC分类号: A61K31/415 C07D231/12

    CPC分类号: C07D231/14

    摘要: The present invention relates to a process for preparing fluoromethyl-substituted heterocyclic compounds of the general formula (I) in which R1 is H or F; R2 is an -[A-O]m—R3 group in which A is C2-C4-alkanediyl, R3 is C1-C4-alkyl and m is 1 or 2; by converting the corresponding chloromethyl-substituted compounds (II) in the presence of fluorinating agents, to processes for preparing the chloromethyl-substituted compounds (II), to processes for preparing amides of the general formula (IV) and to compounds of the general formulae (I) and (II).

    摘要翻译: 本发明涉及制备通式(I)的氟甲基取代的杂环化合物的方法,其中R 1为H或F; R2是其中A是C 2 -C 4烷二基,R 3是C 1 -C 4烷基,m是1或2的 - [A-O] m -R 3基团; 通过在氟化剂的存在下将相应的氯甲基取代的化合物(II)转化为制备氯甲基取代的化合物(II)的方法,制备通式(IV)的酰胺的方法和通式 (I)和(II)。