申请人:Sumitomo Chemical Company, Limited
公开号:US04665174A1
公开(公告)日:1987-05-12
A process for preparing cyclopentenone derivatives of the formula: ##STR1## wherein R.sup.1 is hydrogen, lower alkyl or lower alkenyl, R.sup.2 is hydrogen, lower alkyl, lower alkenyl, lower alkynyl, cycloalkyl, substituted or unsubstituted aryl or substituted or unsubstituted ar(lower)alkyl and A is the residue of a nucleophilic agent from which a hydrogen atom is excluded, which comprises reacting a 3-hydroxy-4-cyclopentenone compound of the formula: ##STR2## wherein R.sup.1 and R.sup.2 are each as defined above with a nucleophilic agent of the formula A--H (III) wherein A is as defined above. The cyclopentenone derivatives of the formula (I) are useful as pharmaceuticals, agricultural chemicals, perfumes and as intermediates for the preparation of agricultural chemicals, pharmaceuticals and perfumes.
一种制备环戊烯酮衍生物的方法,其化学式为:##STR1## 其中R.sup.1为氢、较低的烷基或较低的烯基,R.sup.2为氢、较低的烷基、较低的烯基、较低的炔基、环烷基、取代或未取代的芳基或取代或未取代的芳基(较低)烷基,A为一种亲核试剂的残基,其中排除了一个氢原子,包括将化学式为:##STR2## 其中R.sup.1和R.sup.2如上所定义的3-羟基-4-环戊烯酮化合物与化学式为A--H (III)的亲核试剂反应,其中A如上所定义。化学式(I)的环戊烯酮衍生物可用作药物、农药、香料以及制备农药、药物和香料的中间体。