发明名称 |
Process for the production of lower alkyl 2-chloro-2-hydroxyiminoacetates |
摘要 |
Lower alkyl 2-chloro-2-hydroxyiminoacetates are produced by (A) reacting chloral with a lower alkanol and a hydroxylamine salt in the presence of a Lewis acid or a metal oxide which is convertible into said Lewis acid during the course of the reaction to give a lower alkyl 2-hydroxyiminoacetate and then chlorinating the resulting product or (B) reacting chloral oxime with a lower alkanol in the presence of a base to give a lower alkyl 2-hydroxyiminoacetate and finally chlorinating the thus formed product.
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申请公布号 |
US4190728(A) |
申请公布日期 |
1980.02.26 |
申请号 |
US19780895476 |
申请日期 |
1978.04.11 |
申请人 |
SHIONOGI & CO LTD |
发明人 |
ADACHI, IKUO;HIRAMATSU, YOSHIHARU;YAMAMORI, TERUO |
分类号 |
C07B61/00;B01J21/00;B01J27/00;C07C67/00;C07C239/00;C07C251/34;C07C259/02;C07C259/06;C07D261/14;(IPC1-7):C07C131/00 |
主分类号 |
C07B61/00 |
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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