| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: present invention refers to method of producing diarylamine compound of Formulas , including the stage (1) including formula 21 compound tailing to amine of formula 22 with alkali salt or transition metal catalyst added, and the stage (2) group Y removing from produced compound with acid added: , where radical values are those specified in cl. 1 of formula of invention; as well as to compound of formula (A) or , where X1, X2, X3 and X4 are independently chosen from fluorine and chlorine; and R represents H or methyl. ^ EFFECT: high-yield production of high purity diaryamines. ^ 49 cl, 9 ex |
