Synthesis of 2-aryl-6-nitro-4-(vic-triazol-1-yl)-1H-indoles from E-2,4,6-trinitrostilbenes
作者:O. Yu. Sapozhnikov、V. V. Dyachuk、M. D. Dutov、V. V. Kachala、S. A. Shevelev
DOI:10.1007/s11172-005-0403-4
日期:2005.5
A method is developed for the preparation of 4-(vic-triazol-1-yl)indoles that involves replacement of the ortho-NO2 group in E-2,4,6-trinitrostilbenes by an azido group, condensation of E-2-azido-4,6-dinitrostilbenes with acetylacetone, replacement of the second ortho-NO2 group in the resulting stilbenes by N3, and subsequent thermolysis of the azide into the target indole. The reactions of E-2-azido-4,6-dinitrostilbenes with cyclohexane-1,3-dione gave E-2-amino-4,6-dinitrostilbenes, which can be used for selective transformation of the ortho-NO2 group into an amino group in E-2,4,6-trinitrostilbenes.
一种制备4-(vic-三唑-1-基)吲哚的方法被开发出来,该方法涉及将E-2,4,6-三硝基苯乙烯中的邻-NO2基团替换为叠氮基团,将E-2-叠氮-4,6-二硝基苯乙烯与乙酰丙酮缩合,将所得苯乙烯中的第二个邻-NO2基团替换为N3,然后将叠氮化物热解为目标吲哚。E-2-叠氮-4,6-二硝基苯乙烯与环己烷-1,3-二酮的反应产生了E-2-氨基-4,6-二硝基苯乙烯,可用于选择性地将E-2,4,6-三硝基苯乙烯中的邻-NO2基团转化为