Synthesis of new (trifluoromethyl)-1H-benzo[e][1,2,4]triazolo[1,2-a][1,2,4]triazine-1,3(2H)-diones and (trifluoromethyl)benzo[5,6][1,2,4]triazino [1,2-b]phthalazine-8,13-diones
作者:Mahin Ramezani、Ali Darehkordi
DOI:10.1016/j.jfluchem.2016.12.004
日期:2017.1
chloride derivative has a fluorine atom at ortho position (3a–c), in two steps under a SNi mechanism and then SNAr reaction mechanism produce ayl-5-(trifluoromethyl)-1H-benzo[e][1,2,4]triazolo[1,2-a][1,2,4]triazine-1,3(2H)-diones (4a–c) and 6-(trifluoromethyl)benzo[5,6][1,2,4]triazino[1,2-b]phthalazine-8,13-diones (4i,4j) in good to excellent yields. In the other imidoyl derivatives (3d–h and 3i,3j) under
在本文中,我们研究了尿嘧啶和酞嗪与N-(芳基)-2,2,2-三氟乙亚胺基氯衍生物的反应。结果表明,当亚氨基酰氯衍生物在邻位(3a–c)处具有氟原子时,在S N i机理下分两步,然后在S N Ar反应机理下生成ayl-5-(三氟甲基)-1H-苯并[e] ] [1,2,4]三唑[1,2-a] [1,2,4]三嗪-1,3(2H)-二酮(4a–c)和6-(三氟甲基)苯并[5,6] [1,2,4]三嗪并[1,2-b]酞嗪-8,13-二酮(4i,4j)的产率高至优异。在其他亚胺基衍生物(3d–h和3i,3j)在这些条件下不会发生环化反应,因此会产生1-芳基-2,2,2-三氟甲基)-4-苯基-1,2,4-三唑烷-3,5-二酮(4d–h)和2- (2,2,2-三氟-1-(芳基)乙基)-2,3-二氢酞嗪-1,4-二酮(4k,4l)(非环状产物),收率良好。