The present invention relates to a process for preparing substituted anthranilic acid derivatives of the formula (I)
in which R
1
, R
2
, R
3
and R
4
are each as defined in the description, by conversion of compounds of the general formula (IV) in the presence of a palladium catalyst and carbon monoxide. The present invention likewise relates to compounds of the general formula (IV).
本发明涉及一种制备式(I)的取代
蒽酸衍
生物的方法,其中R1、R2、R3和R4的定义如描述中所述,通过在
钯催化剂和
一氧化碳存在下转化通式(IV)化合物。本发明还涉及通式(IV)的化合物。