申请人:——
公开号:US20020007086A1
公开(公告)日:2002-01-17
The invention relates to a process for producing a trifluotomethylbenzylamine represented by the following general formula (1),
1
where each R independently represents a halogen selected from the group consisting of fluorine, chlorine, bromine and iodine, an alkyl group having a carbon atom number of 1-4, an alkoxy group having a carbon atom number of 1-4, an amino group, a hydroxyl group or a trifluoromethyl group, and n represents an integer from 0 to 4. The process includes hydrogenating a trifluoromethylbenzonitrile by hydrogen in an organic solvent in the presence of ammonia and a catalyst containing a platinum group element. This trifluoromethylbenzonitrile is represented by the following general formula (2),
2
where R and n are defined as above. With this process, it is possible to obtain the trifluoromethylbenzylamine at an extremely high yield.
该发明涉及一种制备三氟甲基苄胺的方法,其通式如下(1),其中每个R独立地表示从氟、氯、溴和碘组成的卤素,具有1-4个碳原子数的烷基基团、具有1-4个碳原子数的烷氧基团、氨基、羟基或三氟甲基基团,n表示0到4之间的整数。该方法包括在有机溶剂中在氨和含有铂族元素的催化剂存在下,通过氢气氢化三氟甲基苯腈。这种三氟甲基苯腈的通式如下(2),其中R和n的定义如上所述。通过这种方法,可以以极高的产率获得三氟甲基苄胺。