| 发明名称 |
Process for the preparation of 3,5-dialkyl-4-hydroxy benzoic acid |
| 摘要 |
An improved process for the preparation of 3,5-dialkyl-4-hydroxybenzoic acid comprising the reaction of 2,6-dialkylphenol and carbon dioxide in the presence of a mono- or polyalkylene glycol ether.
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| 申请公布号 |
US4730083(A) |
申请公布日期 |
1988.03.08 |
| 申请号 |
US19860898794 |
申请日期 |
1986.08.18 |
| 申请人 |
CIBA-GEIGY CORPORATION |
发明人 |
PASTOR, STEPHEN D.;SPIVACK, JOHN D.;ODORISIO, PAUL |
| 分类号 |
C07C51/15;(IPC1-7):C07C51/15 |
主分类号 |
C07C51/15 |
| 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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