| 发明名称 |
PROCESS FOR THE PREPARATION OF 4,4'-DIHALOGEN-O-HYDROXYDIPHENYL COMPOUNDS |
| 摘要 |
Disclosed is a four-step process for the preparation of 4,4'-dihalogen-o-hydroxydiphenyl compounds of formula (1) by halogenation of a diphenyl compound (step 1a) or by the reaction of p-halophenol and p-dihalobenzene (step 1b), acylation of the dihalogen compound in a Friedel-Crafts reaction (2nd step), oxidation of the acyl compound (3rd step) and hydrolysis (4th step). The compounds of formula (1) are used for protecting organic materials and objects from microorganisms. |
| 申请公布号 |
IL141947(D0) |
申请公布日期 |
2002.03.10 |
| 申请号 |
IL19990141947 |
申请日期 |
1999.09.27 |
| 申请人 |
CIBA SPECIALTY CHEMICALS HOLDING INC. |
发明人 |
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| 分类号 |
A61K8/30;A01N31/14;A01N31/16;A61K8/00;A61Q5/02;A61Q11/00;A61Q17/00;A61Q19/10;C07B61/00;C07C41/26;C07C43/295;C11D3/00;C11D3/48;D06M13/10;D06M13/165;D21H17/11;D21H21/36;(IPC1-7):C07C |
主分类号 |
A61K8/30 |
| 代理机构 |
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代理人 |
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