发明名称 |
PROCESS FOR PREPARING 4-NITRO-OXY-METHYL-BENZOIC ACID. |
摘要 |
<p>This invention relates to a new process for preparing 4-nitro-oxy-methyl- benzoic acid, comprising the following steps: a) reaction of 4-chloromethyl-benzoic acid with silver nitrate and in the presence of an acid as a catalyst in acetonitrile at reflux temperature, followed by cooling and adding of a polar aprotic solvent; b) separation of the silver salts by filtration, followed by washout with a polar aprotic solvent; c) precipitation of the 4-nitro-oxy-methyl-benzoic acid with water from the filtrate obtained in step b); and d) drying of the 4-nitro-oxy-methyl-benzoic acid.</p> |
申请公布号 |
MX2012005615(A) |
申请公布日期 |
2012.11.12 |
申请号 |
MX20120005615 |
申请日期 |
2010.11.15 |
申请人 |
FERRER INTERNACIONAL, S.A. |
发明人 |
PALOMER, ALBERT;ANGLADA, LUIS;SOBRAL, LUIS |
分类号 |
C07C201/02;C07C203/04 |
主分类号 |
C07C201/02 |
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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