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72 条记录 (耗时 0.056 秒)

    Preparation of thiazoles
    42.
    发明授权
    Preparation of thiazoles 失效
    噻唑的制备

    公开(公告)号：US06548676B1

    公开(公告)日：2003-04-15

    申请号：US09331433

    申请日：1999-06-18

    申请人： Thomas Pitterna ,  Henry Szczepanski ,  Peter Maienfisch ,  Ottmar Franz Hüter ,  Thomas Rapold ,  Marcel Senn ,  Thomas Göbel ,  Anthony Cornelius O'Sullivan

    发明人： Thomas Pitterna ,  Henry Szczepanski ,  Peter Maienfisch ,  Ottmar Franz Hüter ,  Thomas Rapold ,  Marcel Senn ,  Thomas Göbel ,  Anthony Cornelius O'Sullivan

    IPC分类号： C07D27732

    CPC分类号： C07D277/32 ,  C07D277/16 ,  C07D277/36 ,  C07D277/70 ,  C07D277/74

    摘要： Described is a process for the preparation of a compound of formula (I) wherein R is unsubstituted or substituted C1-C12alkyl, C2-C4alkenyl, C2-C4alkynyl, C3-C6cycloalkyl, aryl or heteroaryl, or —SR1; R1 is unsubstituted or substituted C1-C12alkyl, C2-C4alkenyl, C2-C4alkynyl, cycloalkyl, aryl or heteroaryl; and X is a leaving group; which comprises: a) reacting a compound of formula (II) wherein R is as defined for formula (I), with a water-removing reagent; or b) for the preparation of a compound of formula (I) wherein X is halogen or a sulfonate, reacting a compound of the formula (III) wherein R is as defined for formula (I), with a halogenating or a sulfonylating agent; or c) for the preparation of a compound of formula (I) wherein X is halogen, reacting a compound of formula (IV) wherein R is as defined for formula (I); and wherein R2 and R3 are for example H, C1-C6alkyl, C3-C6cycloalkyl, phenyl or benzyl; with a compound of the formula halogen-C(═O)—O—C1-C8alkyl, halogen-C(═O)—O-aryl or halogen-C(═O)—O-benzyl. Intermediates for the preparation of the synthesis of compounds (II) to (IV) and method of the preparation thereof.

    摘要翻译： 描述了制备式（I）化合物的方法，其中R是未取代的或取代的C 1 -C 12烷基，C 2 -C 4烯基，C 2 -C 4炔基，C 3 -C 6环烷基，芳基或杂芳基或-SR 1; R1是未取代的或取代的C1-C12烷基，C2-C4链烯基，C2-C4炔基，环烷基，芳基或杂芳基; X为离去群; 其包括：a）使其中R如式（I）所定义的式（II）化合物与除水试剂反应; 或者b）用于制备其中X为卤素或磺酸盐的式（I）化合物，其中R为式（I）所定义的式（III）化合物与卤化剂或磺酰化剂反应; 或c）用于制备其中X为卤素的式（I）化合物，其中R为式（I）所定义的式（IV）化合物; 并且其中R 2和R 3是例如H，C 1 -C 6烷基，C 3 -C 6环烷基，苯基或苄基; 与卤素-C（= O）-O-C 1 -C 8烷基，卤素-C（= O）-O-芳基或卤素-C（= O）-O-苄基的化合物反应。 用于制备化合物（II）至（IV）的合成的中间体及其制备方法。

    Process of preparing 2-(imidazolin-2-yl)-nicotinic acid compounds
    47.
    发明授权
    Process of preparing 2-(imidazolin-2-yl)-nicotinic acid compounds 失效
    制备2-（咪唑啉-2-基） - 烟酸化合物的方法

    公开(公告)号：US4997947A

    公开(公告)日：1991-03-05

    申请号：US426901

    申请日：1989-10-24

    申请人： Henry Szczepanski ,  Dieter Durr

    发明人： Henry Szczepanski ,  Dieter Durr

    IPC分类号： A01N43/50 ,  A01N43/90 ,  C07D213/80 ,  C07D401/04 ,  C07D401/14 ,  C07D405/14 ,  C07D409/14 ,  C07D471/04 ,  C07D471/14 ,  C07D491/04 ,  C07D491/048

    CPC分类号： C07D213/80 ,  A01N43/50 ,  A01N43/90 ,  C07D401/04 ,  C07D401/14 ,  C07D405/14 ,  C07D409/14 ,  C07D471/04 ,  C07D471/14 ,  C07D491/04

    摘要： The invention relates to processes for the preparation of 6-substituted 2-(imidazolin-2-yl)-nicotinic acid derivatives that are distinguished by excellent herbicidal and plant growth-regulating properties, and to intermediates and processes for the preparation of the intermediates. The derivatives correspond to formula I ##STR1## in which R.sub.1 represents hydrogen or a salt, ester or amide radical,each of R.sub.2 and R.sub.3, independently of the other, represents C.sub.1 -C.sub.4 -alkyl or they together represent a C.sub.3 -C.sub.5 -alkylene radical,X represents hydrogen or methyl,Y represents hydrogen, halogen, alkyl, haloalkyl, hydroxyalkyl, alkoxy, alkylthio, phenoxy, nitro, cyano, alkylamino, phenyl, alkenyloxy or alkynyloxy, andZ represents a --CQ.sub.1 Q.sub.2 Q.sub.3 or --CQ.sub.1 Q.sub.4 Q.sub.5 radical in whichQ.sub.1 and Q.sub.2 each represents hydrogen or C.sub.1 -C.sub.4 -alkyl,Q.sub.3 represents C.sub.1 -C.sub.6 -alkoxy or phenoxy that is unsubstituted or substituted, or C.sub.3 -C.sub.6 -alkenyloxy or C.sub.3 -C.sub.6 -alkynyloxy andQ.sub.4 and Q.sub.5, together with the carbon atom to which they are bonded, represent a cycloalkyl, furyl, pyran, dioxan or dioxolan radical, orZ represents a 5- or 6-membered heterocyclic radical.

    摘要翻译： 本发明涉及用优异的除草和植物生长调节特性来区分的6-取代的2-（咪唑啉-2-基） - 烟酸衍生物的方法，以及制备中间体的中间体和方法。 衍生物对应于式I（I）其中R 1表示氢或盐，酯或酰胺基，R 2和R 3各自独立地表示C 1 -C 4 - 烷基，或它们一起表示C 3 -C 4 - C5-亚烷基，X代表氢或甲基，Y代表氢，卤素，烷基，卤代烷基，羟基烷基，烷氧基，烷硫基，苯氧基，硝基，氰基，烷基氨基，苯基，烯氧基或炔氧基，Z代表-CQ1Q2Q3或-CQ1Q4Q5 基团，其中Q1和Q2各自表示氢或C1-C4-烷基，Q3表示未取代或取代的C1-C6-烷氧基或苯氧基，或C3-C6-烯氧基或C3-C6-炔氧基，Q4和Q5连同 它们键合的碳原子代表环烷基，呋喃基，吡喃，二恶烷或二氧戊环，或Z表示5或6元杂环基。

    3H imidazo[1'2':2,2]pyrrolo[3,4-b]pyridine-2,5-dione, useful as herbicidal agents
    50.
    发明授权
    3H imidazo[1'2':2,2]pyrrolo[3,4-b]pyridine-2,5-dione, useful as herbicidal agents 失效
    3H咪唑并[1'2“：2,2]吡咯并[3,4-b]吡啶-2,5-二酮，可用作除草剂

    公开(公告)号：US4726838A

    公开(公告)日：1988-02-23

    申请号：US936216

    申请日：1986-12-01

    申请人： Dieter Durr ,  Hans-Georg Brunner ,  Henry Szczepanski

    发明人： Dieter Durr ,  Hans-Georg Brunner ,  Henry Szczepanski

    IPC分类号： A01N43/90 ,  C07D471/14 ,  A01N43/36 ,  A01N43/40

    CPC分类号： C07D471/14 ,  A01N43/90

    摘要： This continuation-in-part is directed to novel pyridine compounds of formula I below have good selective herbicidal properties pre- and postemergence and also influence or inhibit plant growth. The compounds are of formula I ##STR1## wherein each of X, Y and Z independently of one another is hydrogen or a C.sub.1 -C.sub.4 alkyl group, or two adjacent substituents together also form a saturated or unsaturated 3- or 4-membered alkylene chain or alkenyl chain, each of which chains may in turn by substituted by one to four C.sub.1 -C.sub.4 alkyl groups and R is a C.sub.1 -C.sub.4 nitroalkyl group.

    摘要翻译： 这部分继续部分是针对以下式I的新型吡啶化合物在芽前和芽后具有良好的选择性除草性质，并且还影响或抑制植物生长。 所述化合物具有式I（I）其中X，Y和Z各自独立地为氢或C 1 -C 4烷基，或两个相邻取代基一起也形成饱和或不饱和的3-或4- 每个链可以依次被1-4个C1-C4烷基取代，R是C1-C4烷基。