申请人:Shell Research Limited
公开号:US05151550A1
公开(公告)日:1992-09-29
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.
该发明提供了一种制备一般公式##STR1##中的环戊二醇衍生物的方法,其中n表示从0到5的整数;每个R代表卤素原子、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、烷氧羰基、羧基、烷酰基、烷基硫基、烷基砜基、碳酰胺基、烷基酰胺基、环烷基或苯基;而R.sup.1、R.sup.2和R.sup.3分别表示氢原子或烷基的方法;其中包括将一般公式##STR2##的环戊醇衍生物与还原剂反应。该发明还提供了公式II的环戊醇衍生物中间体本身以及其制备方法。公式I和II的化合物在制备某些具有杀菌活性的环戊烷衍生物中起着中间体的作用。