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1.用1,2-二(对甲苯胺基)乙烷与醛类缩合而得1,3-二(对甲苯基)-2-烃基四氢咪唑,在反应的专属性,缩合手续,产率及产物的熔点范围方面似均较前人用1,2-双苄胺基乙烷,1,2-二(对甲氧苄胺基)乙烷或1,2-二(对氯苄胺基)乙烷为佳. 2.改进1,2-二(对甲苯胺基)乙烷的合成方法,使产量提高,并消除副反应. 3.曾制备二十四种新的1,3-二(对甲苯基)-2-烃基四氢咪唑类化合物,和三种1,2-二(对甲苯胺基)乙烷的衍生物. 4.1,3-二(对甲苯基)-2-邻硝基苯四氢咪唑可用稀盐酸分解为相应的邻硝基苯甲醛和1,2-二(对甲苯胺基)乙烷的二盐酸盐,其反应几为定量.
1. With 1,2-bis (p-toluidine) ethane condensation with aldehydes 1,3-bis (p-tolyl) -2-alkyl tetrahydroimidazole, in the reaction of the specific, condensation procedures, The melting point of the product and the melting point range of the product are all similar to those of the former using 1,2-bis-benzylaminoethane, 1,2-bis (p-methoxybenzylamino) ethane or 1,2-bis ) Ethane. 2. Improved 1,2-bis (p-toluidine) ethane synthesis to increase yield and eliminate side reactions 3. Twenty-four new 1,3- Di (p-tolyl) -2-alkyltetrahydroimidazoles, and three derivatives of 1,2-bis (p-toluidino) ethane. Nitrobenzene tetrahydroimidazole with dilute hydrochloric acid can be decomposed into the corresponding o-nitrobenzaldehyde and 1,2-bis (p-toluidine) ethane dihydrochloride, the reaction of several quantitative.