Process for producing thiolcarbamates
    1.
    发明授权
    Process for producing thiolcarbamates 失效
    生产硫代氨基甲酸盐的方法

    公开(公告)号:US4248779A

    公开(公告)日:1981-02-03

    申请号:US948346

    申请日:1978-10-04

    CPC分类号: C07D295/21

    摘要: A thiolcarbamate having the formula ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and respectively represent an alkyl, alkoxy, alkenyl, cycloalkyl, hydroxyalkyl, phenyl or benzyl group and R.sub.1 and R.sub.2 can form a ring by binding each other with or without oxygen atom; and R.sub.3 represents a lower alkyl or benzyl group or a substituted benzyl group having one or two substituent of halogen atom, alkyl, alkoxy, alkylthio, nitro, or cyano group, which comprises reacting carbonyl sulfide with a sec-amine having the formula ##STR2## wherein R.sub.1 and R.sub.2 are defined above, in an aqueous medium and then reacting a halogenated hydrocarbon having the formulaX--R.sub.3 (IV)wherein R.sub.3 is defined above and X represents a halogen atom, in an aqueous medium.

    摘要翻译: 具有式(VI)的硫代氨基甲酸酯其中R 1和R 2相同或不同并分别表示烷基,烷氧基,烯基,环烷基,羟基烷基,苯基或苄基,并且R 1和R 2可以通过彼此结合而形成环 有或没有氧原子; 并且R 3表示低级烷基或苄基或具有一个或两个卤原子,烷基,烷氧基,烷硫基,硝基或氰基取代基的取代苄基,其包括使硫化羰与具有式 (I)其中R 1和R 2如上定义,在水性介质中,然后在水性介质中使具有式X-R3(Ⅳ)的卤代烃,其中R3定义如上,X表示卤素原子。

    Process for production of N-cyclopropylanilines and intermediates
therefor
    2.
    发明授权
    Process for production of N-cyclopropylanilines and intermediates therefor 失效
    制备N-环丙基苯胺及其中间体的方法

    公开(公告)号:US6162944A

    公开(公告)日:2000-12-19

    申请号:US423339

    申请日:1999-11-22

    摘要: Process for production of, from inexpensive raw materials of high commercial availability, N-cyclopropylanilines which are an important intermediate in producing a quinolonecarboxylic acid having a cyclopropyl group at the 1-position, a fluorine atom at the 6-position, and an alkyl group, an alkoxy group or a fluorine-substituted methoxy group at the 8-position (this quinolonecarboxylic acid is a useful synthetic antibacterial agent); and intermediates therefor. For example, a process for producing an N-cyclopropyl-3,4-difluoroaniline represented by the formula (4): ##STR1## includes reacting, in the presence of an acid in an alcohol type solvent, a 3,4-difluoro-2-substituted-aniline with a 1-alkoxy-1-trialkylsilyloxycyclopropane to produce an N-alkoxycyclopropylaniline represented by the general formula (3): ##STR2## and then reducing the N-alkoxycyclopropylaniline.

    摘要翻译: PCT No.PCT / JP98 / 01395 Sec。 一九九九年十一月二十二日 102(e)1999年11月22日PCT PCT 1998年3月27日PCT公布。 WO99 /​​ 50226 PCT公开号 日期1999年10月7日从商业利用的廉价原料生产制造在1-位具有环丙基的喹啉酮羧酸的重要中间体的6-氟苯基-N- ,8位上的烷基,烷氧基或氟取代的甲氧基(该喹诺酮羧酸是有用的合成抗菌剂)。 及其中间体。 例如,由式(4)表示的制备N-环丙基-3,4-二氟苯胺的方法包括在醇类溶剂中的酸存在下,使3,4-二氟-2-取代 - 苯胺与1-烷氧基-1-三烷基甲硅烷氧基环丙烷反应生成由通式(3)表示的N-烷氧基环丙基苯胺,然后还原N-烷氧基环丙基苯胺。