A PROCESS FOR THE PREPARATION OF 3- AND/OR 5-SUBSTITUTED ANTHRANILIC ACIDS
申请人:DOWELANCO
公开号:EP0638065B1
公开(公告)日:1997-08-06
US5189210A
申请人:——
公开号:US5189210A
公开(公告)日:1993-02-23
[EN] A PROCESS FOR THE PREPARATION OF 3- AND/OR 5-SUBSTITUTED ANTHRANILIC ACIDS<br/>[FR] PROCEDE DE PREPARATION D'ACIDES ANTHRANILIQUES SUBSTITUES EN POSITION 3 ET/OU 5
申请人:DOWELANCO
公开号:WO1993022276A1
公开(公告)日:1993-11-11
(EN) Anthranilic acids substituted in the 3- and/or 5-position are valuable intermediates for the production of agricultural chemicals. These substituted anthranilic acids can be obtained in good yield without undesirable isomeric byproducts by the oxidative ring-opening of dihydroquinolin-4-ones or quinolin-2,4-diones with $i(t)-butyl hydroperoxide in the presence of a base.(FR) Cette invention concerne des acides anthraniliques substitués en position 3 et/ou 5 qui sont des intermédiaires utiles dans la production de substances chimiques agricoles. On peut produire avec un bon rendement ces acides anthraniliques substitués sans dérivés secondaires indésirables, par ouverture du cycle oxydant des dihydroquinolin-4-ones ou des quinoline-2,4-diones avec de l'hydroperoxyde de t-butyle en présence d'une base.
Process for the preparation of 3- and/or 5-substituted anthranilic acids
申请人:DowElanco
公开号:US05189210A1
公开(公告)日:1993-02-23
Anthranilic acids substituted in the 3- and/or 5-position are valuable intermediates for the production of agricultural chemicals. These substituted anthranilic acids can be obtained in good yield without undesirable isomeric byproducts by the oxidative ring-opening of dihydroquinolin-4-ones or quinolin-2,4-diones with t-butyl hydroperoxide in the presence of a base.