申请人:Ishihara Sangyo Kaisha Ltd.
公开号:US05491239A1
公开(公告)日:1996-02-13
A method for halogenating an aromatic compound, which comprises reacting the aromatic compound of the formula (I): ##STR1## wherein X is a hydroxyl group, an amino group or an acylamino group, each of Z.sub.1 and Z.sub.2 is a hydrogen atom or a halogen atom, one of R and Y is a hydrogen atom and the other is a nitro group, a cyano group or a trifluoromethyl group, and Q is a nitrogen atom or --C(T).dbd. (wherein T is a hydrogen atom, a halogen atom, a nitro group, a cyano group or a trifluoromethyl group), with a halogenating agent to obtain a 3-halogenoaromatic compound of the formula (II): ##STR2## wherein one of R' and Y' is a halogen atom and the other is a nitro group, a cyano group or a trifluoromethyl group, and X, Z.sub.1, Z.sub.2 and Q are as defined above.
一种卤代芳香化合物的方法,包括将具有以下结构的芳香化合物(I)与卤代试剂反应,其中X为羟基、氨基或酰胺基,Z.sub.1和Z.sub.2中的每一个为氢原子或卤素原子,R和Y中的一个为氢原子,另一个为硝基、氰基或三氟甲基,Q为氮原子或--C(T).dbd.(其中T为氢原子、卤素原子、硝基、氰基或三氟甲基),从而得到具有以下结构的3-卤代芳香化合物(II),其中R'和Y'中的一个为卤素原子,另一个为硝基、氰基或三氟甲基,而X、Z.sub.1、Z.sub.2和Q如上所定义。