发明名称 |
VERFAHREN ZUR HERSTELLUNG VON DI-ORTHO-SUBSTITUIERTEN DI-META-HALOGENIERTEN PARA-HALOMETHYLPHENOLEN. |
摘要 |
<p>The invention is a process to prepare a 4-(bromo or chloro)methyl-3,5-dihalo-2,6-disubstituted phenol from a 4-methyl-2,6-disubstituted phenol and a brominating or chlorinating agent, in an aprotic organic diluent. The process is highly selective and efficient. For example, high purity 4-bromomethyl-3,5-dibromo-2,6-dimethylphenol can be prepared from 2,4,6-trimethylphenol and bromine, in bromochloromethane at high conversion.</p> |
申请公布号 |
DE3779801(D1) |
申请公布日期 |
1992.07.23 |
申请号 |
DE19873779801 |
申请日期 |
1987.04.22 |
申请人 |
THE DOW CHEMICAL CO., MIDLAND, MICH., US |
发明人 |
MENDOZA, ABEL, MIDLAND MICHIGAN 48640, US |
分类号 |
C07C37/02;C07C27/00;C07C37/62;C07C39/02;C07C39/26;C07C67/00;(IPC1-7):C07C37/62 |
主分类号 |
C07C37/02 |
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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