Carbamat-benzoxazinones
    52.
    发明授权
    Carbamat-benzoxazinones 有权
    二恶烷 - 苯并恶嗪酮

    公开(公告)号:US09353070B2

    公开(公告)日:2016-05-31

    申请号:US14421348

    申请日:2013-08-07

    Applicant: BASF SE

    CPC classification number: C07D265/36 C07D413/04

    Abstract: The present invention relates to carbamat-benzoxazinones of formula (I), wherein the variables are defined according to the description, as well as to a process for manufacturing carbamat-benzoxazinones of formula (I), and to the use of carbamat-benzoxazinones of formula (I) in manufacturing benzoxazinones of formula (X).

    Abstract translation: 本发明涉及式(I)的氨基甲酰 - 苯并恶嗪酮,其中根据描述定义变量,以及制备式(I)的氨基甲酰 - 苯并恶嗪酮的方法,以及使用式(I)的氨基甲酰 - 苯并恶嗪酮 式(I)在制备式(X)的苯并恶嗪酮时。

    Process for manufacturing 5-chloromethyl-2,3-pyridine dicarboxylic acid anhydrides
    53.
    发明授权
    Process for manufacturing 5-chloromethyl-2,3-pyridine dicarboxylic acid anhydrides 有权
    制备5-氯甲基-2,3-吡啶二羧酸酐的方法

    公开(公告)号:US09278977B2

    公开(公告)日:2016-03-08

    申请号:US14220561

    申请日:2014-03-20

    Applicant: BASF SE

    Abstract: A process for manufacturing 5-chloromethyl-2,3-pyridine dicarboxylic acid anhydrides (I) wherein Z is hydrogen or halogen; Z1 is hydrogen, halogen, cyano or nitro; comprising the steps of (i) reacting a compound of formula (II), wherein the symbols have the meaning given in formula (I), with a chlorinating agent, optionally in the presence of a radical initiator in a solvent selected from halogenated hydrocarbons, and (ii) crystallizing the compound (I) formed in step (i) from a solvent selected from chlorobenzene, 1,2-dichlorobenzene, 1,3-dichlorobenzene, 1,4-dichlorobenzene, dichloroethane, trichloromethane, dichloromethane, toluene, xylenes, ethyl acetate, methyl tert.-butyl ether, and mixtures thereof. Compounds (I) are useful intermediates in the synthesis of herbicidal imidazolinones.

    Abstract translation: 制备其中Z为氢或卤素的5-氯甲基-2,3-吡啶二羧酸酐(I)的方法; Z1是氢,卤素,氰基或硝基; 包括以下步骤:(i)使式(II)化合物(其中符号具有式(I)中给出的含义)与氯化剂反应,任选在自由基引发剂存在下,在选自卤代烃, 和(ii)从选自氯苯,1,2-二氯苯,1,3-二氯苯,1,4-二氯苯,二氯乙烷,三氯甲烷,二氯甲烷,甲苯,二甲苯中的溶剂中,使步骤(i)中形成的化合物(I) ,乙酸乙酯,甲基叔丁基醚及其混合物。 化合物(I)是合成除草咪唑啉酮的有用中间体。

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