发明名称 |
Process for preparing trichlorophenoxy alkanoic acid and hydrolyzable derivatives thereof free of chlorinated dibenzo-p-dioxins |
摘要 |
Trichlorophenoxy alkanoic acid including hydrolyzable salts, aliphatic esters and amides thereof said compounds being free of chlorinated dibenzo-p-dioxins are prepared by liquid phase alkaline condensation of 3-chlorophenol or 3,4-dichlorophenol with an alpha halo alkanoic acid, ester or amide followed by liquid phase chlorination of the condensation product.
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申请公布号 |
US4293707(A) |
申请公布日期 |
1981.10.06 |
申请号 |
US19790045549 |
申请日期 |
1979.06.04 |
申请人 |
PPG INDUSTRIES, INC. |
发明人 |
RICHTER, SIDNEY B.;GROVE, WILLIAM S. |
分类号 |
C07C59/68;C07C59/70;(IPC1-7):C07C59/56 |
主分类号 |
C07C59/68 |
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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