The present invention relates to a process for the preparation of 2-thienylethylamine derivatives of general formula: ##STR1## as well as their acid addition salts, in which R represents a halogen atom and R.sub.1 represents a C.sub.1 -C.sub.4 alkyl group, characterized in that a thienylglycidic derivative of general formula: ##STR2## in which M represents an alkali metal atom or a fraction of an alkaline-earth metal atom, is reacted with a phenylglycine ester, optionally in the form of a strong acid salt, of general formula: ##STR3## in which R and R.sub.1 have the same meaning as above, in the presence of an alkali metal borchydride of general formula: X--Y IV in which X represents an alkali metal atom and Y represents a group of formula: --BH.sub.3 CN or --BH.sub.(4-w) Z.sub.w in which Z represents a carboxylic acid residue and optionally in the presence of a C.sub.1 -C.sub.4 carboxylic acid, which gives the desired compound in the form of a free base which can be treated, if necessary, with an acid in order to obtain an addition salt of this compound.
本发明涉及一种制备2-
噻吩乙基胺衍
生物的方法,其通式为:##STR1##以及它们的酸盐,其中R代表卤素原子,R.sub.1代表C.sub.1-C.sub.4烷基,其特征在于将一种
噻吩基
乙烯酸衍
生物与一种苯基甘
氨酯反应,该苯基甘
氨酯可以是强酸盐,通式为:##STR3##其中R和R.sub.1具有上述相同的含义,在碱
金属
硼氢化物的存在下,碱
金属原子或碱土
金属原子的部分,通式为:X--Y IV,其中X代表碱
金属原子,Y代表公式:--BH.sub.3 CN或--BH.sub.(4-w)Z.sub.w的基团,其中Z代表
羧酸残基,必要时可以在C.sub.1-C.sub.4
羧酸的存在下给出所需的化合物的自由碱,然后可以用酸处理以获得该化合物的加成盐。