Process for the preparation of thiazole derivatives
    11.
    发明授权
    Process for the preparation of thiazole derivatives 失效
    噻唑衍生物的制备方法

    公开(公告)号:US06677457B2

    公开(公告)日:2004-01-13

    申请号:US10047807

    申请日:2002-01-15

    IPC分类号: C07D27716

    摘要: The invention relates to a process for the preparation of a compound of the formula wherein Q, Y, Z, R1, R2, R3, R4 and R5 are as defined in the specification, which comprises a) reacting a compound of the formula  with a halogenating agent to form a compound of the formula or b) converting a compound of formula (II) by means of a halogenating agent into a compound of the formula optionally c) converting the compound of formula (IV) into a compound of formula (III); d) converting a compound of formula (III) by means of a compound of the formula into a compound of the formula or e) converting a compound (IV) by means of a compound (V) into a compound (VI); and f) converting a compound (VI) by means of a chlorinating agent into a compound (I); a compound (IV); to a process for the preparation of a compound (III) and to a process for the preparation of a compound (IV).

    摘要翻译: 本发明涉及制备糠醛的化合物的方法,其中Q,Y,Z,R 1,R 2,R 3,R 4和R 5如本说明书中所定义,其包括:a)将卤化剂的化合物与 将式(II)化合物通过卤化剂转化成式(Ⅲ)的化合物,将式(Ⅳ)化合物转化为式(Ⅳ)化合物; d)将化合物 通过化学式(Ⅳ)将化合物(Ⅳ)转化为化合物(Ⅵ);将式(Ⅳ)化合物与式 和(f)通过氯化剂将化合物(VI)转化为化合物(I);化合物(IV); 涉及制备化合物(III)的方法和制备化合物(IV)的方法。

    Process for the preparation of aniline compounds
    12.
    发明授权
    Process for the preparation of aniline compounds 有权
    苯胺化合物的制备方法

    公开(公告)号:US06657085B2

    公开(公告)日:2003-12-02

    申请号:US10276474

    申请日:2002-11-15

    IPC分类号: C07C20936

    摘要: A process for the preparation of aniline compounds of formula: wherein n and R are as defined in claim 1, by reacting nitro compounds of formula: wherein n and R are as defined, with hydrazine at elevated temperature in the presence of an aqueous base. The compounds of formula I are suitable as intermediates in the preparation of herbicides of the isobenzofuranone type.

    摘要翻译: 其中n和R如权利要求1中所定义,其中n和R如权利要求1所定义,其方法是在碱水溶液存在下,在升高的温度下,使下式的硝基化合物:其中n和R如上定义。 式I化合物适合作为制备异苯并呋喃酮类除草剂的中间体。

    Process for the preparation of 1-aminoanthraquinones
    13.
    发明授权
    Process for the preparation of 1-aminoanthraquinones 失效
    1-氨基蒽醌的制备方法

    公开(公告)号:US4770818A

    公开(公告)日:1988-09-13

    申请号:US110162

    申请日:1987-10-19

    IPC分类号: C09B1/22 C09B1/20 C07C97/24

    CPC分类号: C09B1/201

    摘要: There is disclosed a process for the preparation of 1-aminoanthraquinones from 5-nitro-1,4,4a,9a-tetrahydroanthraquinones with a basic reducing agent, which process is carried out under pressure in the temperature range above 100.degree. C. and in an aqueous-organic medium. The process affords very pure 1-aminoanthraquinone, which is, inter alia, an important intermediate.

    摘要翻译: 公开了用碱还原剂从5-硝基-1,4,4a,9a-四氢蒽醌制备1-氨基蒽醌的方法,该方法在压力下在100℃以上的温度下进行, 水 - 有机介质。 该方法提供非常纯的1-氨基蒽醌,其特别是重要的中间体。

    Process for the preparation of thiazole derivatives
    15.
    发明授权
    Process for the preparation of thiazole derivatives 有权
    噻唑衍生物的制备方法

    公开(公告)号:US6121455A

    公开(公告)日:2000-09-19

    申请号:US331432

    申请日:1999-08-13

    摘要: The invention relates to a process for the preparation of a compound of the formula ##STR1## and, where applicable, its E/Z-isomers, mixtures of E/Z-isomers and/or tautomers, in each case in free form or in salt form, whereinQ is CH or N,Y is NO.sub.2 or CN,Z is CHR.sub.3, O, NR.sub.3 or S,R.sub.1 and R.sub.2 are either each independently of the other hydrogen or unsubstituted or R.sub.4 -substituted C.sub.1 -C.sub.8 alkyl, or together form an alkylene bridge having two or three carbon atoms, and said alkylene bridge may additionally contain a hetero atom selected from the group consisting of NR.sub.5, O and S,R.sub.3 is H or unsubstituted or R.sub.4 -substituted C.sub.1 -C.sub.12 alkyl,R.sub.4 is unsubstituted or substituted aryl or heteroaryl, andR.sub.5 is H or C.sub.1 -C.sub.12 alkyl; which comprisesa) reacting a compound of the formula ##STR2## and, where applicable, its E/Z-isomers, mixtures of E/Z-isomers and/or tautomers, in each case in free form or in salt form, which is known or can be prepared by processes known.

    摘要翻译: PCT No.PCT / EP97 / 07087第 371日期1999年8月13日 102(e)日期1999年8月13日PCT 1997年12月17日PCT公布。 第WO98 / 27074号公报 日期1998年6月25日本发明涉及一种制备下式化合物和(如适用的话)其E / Z-异构体,E / Z-异构体和/或互变异构体的混合物的方法,在每种情况下为游离形式 或盐形式,其中Q是CH或N,Y是NO 2或CN,Z是CHR 3,O,NR 3或S,R 1和R 2各自独立地是另一个氢或未取代的或者R 4取代的C 1 -C 8烷基,或一起 形成具有两个或三个碳原子的亚烷基桥,并且所述亚烷基桥可以另外含有选自NR5,O和S的杂原子,R3是H或未取代的或R4取代的C1-C12烷基,R4是未取代的或 取代的芳基或杂芳基,R5是H或C1-C12烷基; 其包括:a)使游离形式或盐形式的下式化合物和/或其可能的E / Z-异构体,E / Z-异构体和/或互变异构体的混合物在各种情况下反应,其为已知或可以 由已知的方法准备。

    Process for the preparation of pyrimidine derivatives
    16.
    发明授权
    Process for the preparation of pyrimidine derivatives 失效
    制备嘧啶衍生物的方法

    公开(公告)号:US4900827A

    公开(公告)日:1990-02-13

    申请号:US288751

    申请日:1988-12-22

    IPC分类号: C07D239/60

    CPC分类号: C07D239/60

    摘要: 4,6-Bis(difluoromethoxy)pyrimidines of formula I ##STR1## wherein R is C.sub.1 -C.sub.4 alkyl or unsubstituted or substituted phenyl or benzyl, are prepared by reacting a 4,6-dihydroxypyrimidine dialkali metal salt of formula II ##STR2## wherein R is as defined for formula I and Me is an alkali metal, with chlorodifluoromethane in a solvent selected from the group consisting of ketones and alkyl cyanides, in the presence of 0.05 to 1.1 mol of water per mol of dialkali metal salt of formula II.

    摘要翻译: 式I的4,6-双(二氟甲氧基)嘧啶其中R是C1-C4烷基或未取代或取代的苯基或苄基的(I)化合物是通过使式II的4,6-二羟基嘧啶二碱金属盐 >(II)其中R为如式I所定义,Me为碱金属,氯代二氟甲烷在选自酮和烷基氰的溶剂中,每摩尔二价金属为0.05-1.1摩尔水 式Ⅱ的盐。

    PROCESS FOR THE PREPARATION OF THIOPHENOLS
    17.
    发明申请
    PROCESS FOR THE PREPARATION OF THIOPHENOLS 审中-公开
    制备噻吩酚的方法

    公开(公告)号:US20070161817A1

    公开(公告)日:2007-07-12

    申请号:US11679526

    申请日:2007-03-23

    IPC分类号: C07C319/02

    CPC分类号: C07C319/02 C07C323/62

    摘要: A process for the preparation of thiophenols of formula wherein n is an integer from 1 to 5 and R is hydrogen, alkyl hydroxyalkyl, alkylamino, dialkylamino, alkenyl, alkynyl, alkoxy, alkylthio, phenyl, naphthyl, phenoxy, phenylthio, halogen, hydroxy, mercapto, carboxyl, sulfo or heterocyclyl, by reacting phenyldiazonium salts of formula wherein n and R are as defined and X is halogen or hydrogen sulfate, with sulfur at elevated temperature in the presence of an aqueous base and isolating the compounds of formula I.

    摘要翻译: 一种制备下式的噻吩的方法,其中n为1至5的整数,R为氢,烷基羟基烷基,烷基氨基,二烷基氨基,烯基,炔基,烷氧基,烷硫基,苯基,萘基,苯氧基,苯硫基,卤素,羟基, 巯基,羧基,磺基或杂环基,通过在碱水溶液的存在下,在升高的温度下,通过使下式的苯基重氮盐其中n和R如上定义,X​​是卤素或硫酸氢盐,并分离式I化合物。

    Process for the preparation of N,N'-substituted ureas
    19.
    发明授权
    Process for the preparation of N,N'-substituted ureas 失效
    制备N,N'-取代脲的方法

    公开(公告)号:US5508402A

    公开(公告)日:1996-04-16

    申请号:US451712

    申请日:1995-05-26

    摘要: A process for the preparation of substituted benzenes or benzenesulfonic acid and its derivatives comprising diazotisation of an aminobenzene or ortho-amino-benzenesulfonic acid derivative followed by homogeneous palladium-catalysed coupling with an olefine and heterogeneous palladium-catalysed hydrogenation of the olefinic substituent, wherein the homogeneous catalyst is reduced and precipitated as metal after the coupling in the reaction mixture and used as a heterogeneous palladium catalyst for the hydrogenation step. The process is particular suitable for the preparation N-benzenesulfon-N'-triazinyl-urea herbicides.

    摘要翻译: 用于制备取代苯或苯磺酸及其衍生物的方法,其包括氨基苯或邻氨基苯磺酸衍生物的重氮化,随后与烯烃和烯烃取代基的异烯烃催化氢化进行均相钯催化偶联,其中 在反应混合物中偶联后,均匀的催化剂被还原并沉淀为金属,并用作氢化步骤的非均相钯催化剂。 该方法特别适用于制备N-苯磺酰基-N'-三嗪基 - 脲除草剂。