[EN] PROCESS FOR THE PRODUCTION OF CYCLIC DIKETONES<br/>[FR] PROCEDE DE PRODUCTION DE DICETONES CYCLIQUES
申请人:SYNGENTA PARTICIPATIONS AG
公开号:WO2005105745A1
公开(公告)日:2005-11-10
The present invention relates to a process for the preparation of compounds of formula (I), wherein the substituents are as defined in claim 1, by reacting a compound of formula (II), either with a chlorination or bromination agent or with a compound of formula (III) CI-SO2R9, R9 being C1-C4alkyl, C1-C4haloalkyl, phenyl or C1-C4alkyl-substituted phenyl, to form the compound of formula (IV), reacting the compound of formula (IV) with a compound of formula (V) M+-O--C(O)-Y, wherein Y is as defined above and M+ is the hydrogen cation or an alkali metal ion, alkaline earth metal ion or ammonium ion, to form the compound of formula (VI) and treating that compound with a cyanide source in the presence of a base.
本发明涉及一种制备式(I)化合物的方法,其中取代基如权利要求1所定义,通过将式(II)化合物与氯化剂或溴化剂或式(III)CI-SO2R9化合物反应来形成式(IV)化合物,然后将式(IV)化合物与式(V)M+ -O- -C(O)-Y化合物反应,其中Y如上所定义,M+是氢离子或碱金属离子、碱土金属离子或铵离子,形成式(VI)化合物,并在碱存在下用氰源处理该化合物。