A method for producing meta-xylylenediamines includes a reaction step in which monohalogenated benzenes, formaldehydes, and an amide compound having a primary amide group or a secondary amide group are allowed to react in the presence of an acidic liquid, a dehalogenation step in which the halogen atom derived from the monohalogenated benzenes is replaced with a hydrogen atom, and a deprotection step in which the primary amide group or the secondary amide group derived from the amide compound is converted to an amino group. In the reaction step, the acidic liquid contains inorganic acid, the equivalent ratio of the hydrogen atom of the inorganic acid relative to the monohalogenated benzenes is more than 16; the acidic liquid has an inorganic acid concentration of more than 80 mass %; and the reaction temperature is more than 40° C.
                            一种生产
间二甲苯二胺的方法,包括反应步骤,在此步骤中,单卤代苯、
甲醛和具有一级酰胺基或二级酰胺基的酰胺化合物在酸性液体存在下反应,脱卤步骤,在此步骤中,来自单卤代苯的卤原子被氢原子替换,去保护步骤,在此步骤中,来自酰胺化合物的一级酰胺基或二级酰胺基被转化为
氨基。在反应步骤中,酸性液体含有
无机酸,相对于单卤代苯的氢原子的当量比大于16;酸性液体的
无机酸浓度大于80质量%;反应温度大于40℃。