Process for producing aromatic isothiocyanate derivatives
    4.
    发明公开
    Process for producing aromatic isothiocyanate derivatives 失效
    伊斯兰堡zur Herstellung von aromatischen Isothiocyanatderivaten。

    公开(公告)号:EP0626370A1

    公开(公告)日:1994-11-30

    申请号:EP94108090.5

    申请日:1994-05-25

    IPC分类号: C07C331/28 C07D265/16

    CPC分类号: C07C331/28 C07D265/36

    摘要: There is disclosed a process for producing an aromatic isothiocyanate derivative of the general formula [ I ]:

    wherein X is chlorine or -O-; when X is chlorine, Y is -O- or -S-, and Z is hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl, alkoxycarbonyl, cycloalkoxycarbonyl, carboxyalkyl, alkoxycarbonylalkyl or cycloalkoxycarbonylalkyl, or when X is -O-, X and Z are taken together to form -O-CH₂-CO-, and Y is -NR- wherein R is hydrogen, alkyl, cycloalkyl, alkenyl or alkynyl, which process including reacting an aromatic amine derivative of the general formula [II]:

    wherein X, Y and Z are each as defined above, with carbon disulfide in the presence of a base in a nitrogen-containing polar solvent, and then with a chlorinated oxidizing agent.

    摘要翻译: 公开了通式[I]的芳族异硫氰酸酯衍生物的制造方法:其中X为氯或-O-; 当X为氯时,Y为-O-或-S-,Z为氢,烷基,环烷基,烯基,炔基,烷氧基羰基,环烷氧基羰基,羧基烷基,烷氧基羰基烷基或环烷氧羰基烷基,或当X为-O-,X和Z为 一起形成-O-CH2-CO-,Y是-NR-,其中R是氢,烷基,环烷基,烯基或炔基,该方法包括使通式[II]的芳族胺衍生物: 其中X,Y和Z各自如上所定义,与二硫化碳在碱的存在下在含氮极性溶剂中,然后与氯化氧化剂反应。

    Method for producing optically active chrysanthemic acid
    5.
    发明公开
    Method for producing optically active chrysanthemic acid 有权
    Verfahren zur Herstellung von optisch aktivenChrysanthemumsäure

    公开(公告)号:EP0933349A1

    公开(公告)日:1999-08-04

    申请号:EP99101475.4

    申请日:1999-01-27

    摘要: The present invention provides an advantageous method for producing an optically active chrysanthemic acid.
    Disclosed is a method for producing an optically active chrysanthemic acid whose trans isomer ratio and optical purity are improved, which comprises reacting chrysanthemic acid having a trans isomer ratio of not less than 50% and an optical purity of not less than 10% e.e. with an optically active organic amine to optically resolve said chrysanthemic acid.

    摘要翻译: 本发明提供了一种制备光学活性菊酸的有利方法。 公开了一种旋光异构体比例和光学纯度得到改善的光学活性菊酸的制造方法,其特征在于使具有反式异构体比率为50%以上的菊酸与光学纯度不小于10%e.e。 与光学活性的有机胺旋光分解所述菊酸。