发明名称 |
PROCESS TO PREPARE 3-METHYL-2-NITROBENZOIC ACID BY AIR OXIDATION |
摘要 |
A method for preparing 3-methyl-2-nitrobenzoic acid is disclosed wherein 1, 3 -dimethyl-2-nitrobenzene is combined with an oxidation catalayst in the presence of an oxygen source and an initiator, provided that less than 99% of the 1,3 -dimethyl-2- nitrobenzene is oxidized. A method for preparing compounds of Formula 7 and Formula 11 is also disclosed wherein the method is characterized by using 3-methyl-2-nitrobenzoic acid as prepared by the method disclosed above. wherein R1 is C1-C7 alkyl, C3-C6 cycloalkyl or C4-C7 alkylcycloalkyl |
申请公布号 |
WO2015184229(A1) |
申请公布日期 |
2015.12.03 |
申请号 |
WO2015US33131 |
申请日期 |
2015.05.29 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
JACOBSON, STEPHEN ERNEST;DUMAS, DONALD J.;SPENCE, RUPERT |
分类号 |
C07C201/12;C07C205/57 |
主分类号 |
C07C201/12 |
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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