发明名称 |
PROCESS FOR PRODUCING CARBOXYLIC ACID CHLORIDE |
摘要 |
<p>This invention relates to a method for producing a carboxylic acid chloride, which efficiently decomposes a Vilsmeier reagent type compound in a carboxylic acid chloride lacking a thermal stability or a carboxylic acid chloride hardly distilled in practice due to a high boiling point with a simple operation and has no adverse effect on a subsequent step, and more particularly to a method for producing a carboxylic acid chloride, characterized by comprising reacting a carboxylic acid with a chlorinating agent in the presence of a catalyst, removing the excessive chlorinating agent from a reaction system after the reaction, and then further adding 1.0 to 3.0 equivalents of the starting carboxylic acid based on the catalyst to the reaction system to decompose a Vilsmeier reagent type compound remaining in the reaction system.</p> |
申请公布号 |
EP2128122(A1) |
申请公布日期 |
2009.12.02 |
申请号 |
EP20080712044 |
申请日期 |
2008.02.27 |
申请人 |
MITSUI CHEMICALS, INC. |
发明人 |
KOBAYASHI, TAKESHI;KIDO, KIYOMI;NAGATOMO, AKINORI |
分类号 |
C07C51/60;C07C51/64;C07C55/36 |
主分类号 |
C07C51/60 |
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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