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    • 9. 发明授权
    • Cyclopentane derivatives
    • 环戊烷衍生物
    • US5151550A
    • 1992-09-29
    • US746874
    • 1991-08-19
    • Paul H. Briner
    • Paul H. Briner
    • C07C35/21C07C45/29C07C49/697C07C49/83C07C51/31C07C205/18
    • C07C205/18C07C35/21C07C45/292C07C49/697C07C49/83C07C51/31
    • The invention provides a process for the preparation of cyclopentanediol derivatives of the general formula ##STR1## in which n represents an integer from 0 to 5; each R represents a halogen atom, nitro, cyano, hydroxyl, alkyl, haloalkyl, alkoxy, haloalkoxy, amino, alkylamino, dialkylamino, alkoxycarbonyl, carboxyl, alkanoyl, alkylthio, alkylsulphinyl, alkylsulphonyl, carbamoyl, alkylamido, cycloalkyl or phenyl group; and R.sup.1, R.sup.2 and R.sup.3 independently represent a hydrogen atom or an alkyl group; which comprises reacting a cyclopentanol derivative of the general formula ##STR2## with a reducing agent. The invention also provides the cyclopentanol derivative intermediates of formula II per se and a process for their preparation. Compounds of formulae I and II are useful as intermediates in the preparation of certain fungicidally active cyclopentane derivatives.
    • 本发明提供了制备通式为(I)的环戊二醇衍生物的方法,其中n表示0至5的整数; 每个R表示卤素原子,硝基,氰基,羟基,烷基,卤代烷基,烷氧基,卤代烷氧基,氨基,烷基氨基,二烷基氨基,烷氧基羰基,羧基,烷酰基,烷硫基,烷基亚磺酰基,烷基磺酰基,氨基甲酰基,烷基酰氨基,环烷基或苯基。 R1,R2和R3独立地表示氢原子或烷基; 其包括使通式(IMAGE)(II)的环戊醇衍生物与还原剂反应。 本发明还提供式II本身的环戊醇衍生物中间体及其制备方法。 式I和II的化合物可用作制备某些杀真菌活性环戊烷衍生物的中间体。