发明名称 |
METHOD FOR THE PREPARATION OF O-CARBOXYARYLIMIDAZOLINONES |
摘要 |
A method for the preparation of o-carboxyl imidazolinone compounds of formula (I) <CHEM> wherein A is CH or N; R1 is H or C1-C12 alkyl; R2 is H or C1-C6 alkyl; R3 is H, C1-C6 alkyl, or when R2 and R3 are taken together they may form a ring represented by -CH=C-CH=CH-; including oxidizing the appropriate 2-{[(1-carbamoyl-1,2-dimethylpropyl)amino]methyl}-benzoic acid intermediate with a brominating agent. Compounds useful as intermediates in the oxidation method and methods for preparing them are disclosed. |
申请公布号 |
ZA8900643(B) |
申请公布日期 |
1989.10.25 |
申请号 |
ZA19890000643 |
申请日期 |
1989.01.26 |
申请人 |
AMERICAN CYANAMID COMPANY |
发明人 |
ROBERT FRANCIS DOEHNER JR. |
分类号 |
A01N43/50;C07C237/06;C07D213/80;C07D215/48;C07D233/70;C07D401/04 |
主分类号 |
A01N43/50 |
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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