发明名称 |
Process for obtaining (nitroxymethyl)phenyl esters of salicylic acid derivatives |
摘要 |
A process for obtaining (nitroxymethyl)phenyl esters of salicylic acid derivatives of formula (I) wherein R1 is the OCOR3 group characterized in that it comprises the following steps: a) reaction of a halide of a salicylic acid derivative with hydroxybenzylacohol in the presence of a base: b) nutration of the obtained product in anhydrous conditions by a mixture of nitric acid with a different inorganic acid, or an organic acid, or an anhydride of one or two organic acids: c) recovery of the final product.
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申请公布号 |
US6696591(B1) |
申请公布日期 |
2004.02.24 |
申请号 |
US20020019316 |
申请日期 |
2002.01.09 |
申请人 |
NICOX S.A. |
发明人 |
CASTALDI GRAZIANO;OLDANI ERMINIO;RAZZETTI GABRIELE;BENEDINI FRANCESCA |
分类号 |
C07C67/14;C07C69/90;C07C201/02;C07C203/04;(IPC1-7):C07C203/04 |
主分类号 |
C07C67/14 |
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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