Herbicidal o-(substituted, aminomethylbenzoic, nicotinic and
申请人:American Cyanamid Company
公开号:US04861887A1
公开(公告)日:1989-08-29
A method for the preparation of o-carboxyl imidazolinone compounds 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.
Method for the preparation of herbicidal O-carboxyarylimidazolinones
申请人:American Cyanamid Company
公开号:US04959476A1
公开(公告)日:1990-09-25
A method for the preparation of o-carboxyl imidazolinone compounds 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.
Method for the preparation of quinolyl and pyridyl substituted
申请人:American Cyanamid Company
公开号:US05034532A1
公开(公告)日:1991-07-23
A method for the preparation of O-carboxyl imidazolinone compounds 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.
Method for the preparation of herbicidal intermediates
申请人:American Cyanamid Company
公开号:US05103009A1
公开(公告)日:1992-04-07
A method for the preparation of o-carboxyl imidazolinone compounds 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.
Method for the preparation of O-carboxyarylimindazolinones
申请人:AMERICAN CYANAMID COMPANY
公开号:EP0325730A2
公开(公告)日:1989-08-02
A method for the preparation of o-carboxyl imidazolinone compounds of formula (I) 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.
一种制备式(I)邻甲酰基咪唑啉酮化合物的方法,其中
A 是 CH 或 N
R1 是 H 或 C₁-C₁₂ 烷基;
R₂ 是 H 或 C₁-C₆ 烷基;
R₃是H、C₁-C₆烷基,或者当R₂和R₃合在一起时,它们可以形成一个由以下各项代表的环
-CH=C-CH=CH-表示的环;
包括用溴化剂氧化适当的 2-[(1-氨基甲酰基-1,2-二甲基丙基)氨基]甲基}-苯甲酸中间体。本发明公开了可用作氧化法中间体的化合物及其制备方法。