申请人:Abe Noboru
公开号:US20070293701A1
公开(公告)日:2007-12-20
A novel process for producing a 2-halogenobenzamide compound useful as a raw material or active ingredient for medicines and agricultural chemicals. The process, which is for producing a 2-halogenobenzamide compound represented by the general formula (I):
(wherein R
1
, R
2
, R
3
, R
4
, and R
6
may be the same or different and each represents hydrogen or C
1-6
alkyl; R
5
represents C
1-6
alkyl; k is 1 or 2; Y
1
, Y
2
, Y
3
, and Y
4
may be the same or different and each represents hydrogen, halogeno, etc.; and X represents chlorine, bromine, or iodine), is characterized by reacting an benzamide compound with a halogenating agent in the presence of a palladium catalyst to obtain a substituted benzamide compound and then reacting the resultant substituted benzamide compound with an oxidizing agent after or without isolating the substituted benzamide compound.
一种生产用作药品和农药活性成分或原料的2-卤代苯甲酰胺化合物的新型工艺。该工艺用于生产由通式(I)表示的2-卤代苯甲酰胺化合物(其中R1、R2、R3、R4和R6可以相同也可以不同,每个代表氢或C1-6烷基;R5代表C1-6烷基;k为1或2;Y1、Y2、Y3和Y4可以相同也可以不同,每个代表氢、卤素等;X代表氯、溴或碘),其特征在于在钯催化剂存在下,将苯甲酰胺化合物与卤化剂反应,以获得取代苯甲酰胺化合物,然后在分离取代苯甲酰胺化合物之后或不分离取代苯甲酰胺化合物的情况下,将所得的取代苯甲酰胺化合物与氧化剂反应。