di(hetero)arylamines were obtained by C–N Buchwald–Hartwig coupling with bromonitrobenzenes and with 2-bromopyridine. In the latter case a tetracyclic compound was formed by intramolecular cyclization. Using a brominated derivative in the pyridine ring as a coupling component, it was possible to synthesize C–C (Suzuki and Sonogashira) and C–N (Buchwald–Hartwig) coupling products and a tetracyclic compound obtained
两个甲基
3-氨基噻吩并[3,2- b ]
吡啶-2-
羧酸盐是从3制备-
氟或3- nitropicolinonitriles和
巯基乙酸甲酯在
DMF / KOH(
水溶液)。从
吡啶环中未取代的前体中,通过C–N Buchwald–Hartwig与
溴硝基苯和2-
溴吡啶的偶联,获得二(杂)芳基胺。在后一种情况下,通过分子内环化形成四环化合物。使用
吡啶环中的
溴化衍
生物作为偶联成分,可以合成C–C(Suzuki和Sonogashira)和C–N(Buchwald–Hartwig)偶联产物,以及通过
噻吩并
吡啶系统双官能化获得的四环化合物。