发明名称 |
PROCESS FOR THE STABILISATION OF ALKYL ALKOXYALKYLIDENE MALONATES |
摘要 |
Process for the heat stabilization of alkyl alkoxyalkylidenemalonates in the presence of Lewis acids, such as metal catalytic compounds employed as catalysts during the preparation of the alkyl alkoxyalkylidenemalonates by condensation of a suitable malonate with a suitable ortho ester. The condensation reaction mixture is heated in the presence of a stabilizing compound selected from the group consisting of 8-hydroxyquinolines and organic acid phosphates in an amount sufficient to stabilize the alkyl alkoxyalkylidenemalonates against thermal decomposition. |
申请公布号 |
DE3560136(D1) |
申请公布日期 |
1987.05.27 |
申请号 |
DE19853560136 |
申请日期 |
1985.06.19 |
申请人 |
RHONE-POULENC SPECIALITES CHIMIQUES |
发明人 |
RATTON, SERGE |
分类号 |
C07C67/62;C07C67/343;C07C69/734;(IPC1-7):C07C69/734 |
主分类号 |
C07C67/62 |
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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