申请人:Union Carbide Corporation
公开号:US04339601A1
公开(公告)日:1982-07-13
The novel compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are each either hydrogen or an alkyl group containing from 1 to 4 carbon atoms, and maybe the same or different, are useful intermediates in a novel process for the preparation of herbicidally active compounds such as 2,5-dichloro-3-nitro-benzoic acid, 2,5-dichloro-3-amino-benzoic acid and their functional derivatives.
该式的新化合物:##STR1## 其中R.sup.1和R.sup.2分别为氢或含有1至4个碳原子的烷基基团,可以相同或不同,是制备具有除草活性的化合物(例如2,5-二氯-3-硝基苯甲酸,2,5-二氯-3-氨基苯甲酸及其功能衍生物)的新工艺中有用的中间体。