发明名称 |
PROCESS FOR THE PRODUCTION OF CYCLIC DIKETONES |
摘要 |
<p>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.</p> |
申请公布号 |
EP1756059(A1) |
申请公布日期 |
2007.02.28 |
申请号 |
EP20050741812 |
申请日期 |
2005.04.29 |
申请人 |
SYNGENTA PARTICIPATIONS AG;SYNGENTA LIMITED |
发明人 |
JACKSON, D.;EDMUNDS, A.,;BOWDEN, M. C.,;BROCKBANK, B., |
分类号 |
C07D213/52;C07C13/42;C07C45/54;C07C45/63;C07C49/687;C07C69/76;C07C309/66;C07D213/50;C07D213/55 |
主分类号 |
C07D213/52 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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