respectively. Depending on the substrate a Pd-catalyzed amination, a base-assisted nucleophilic aromatic substitution or a combination of both is occurring. An explanation based on the aromaticity of the amidine, supported by theoretical calculations, is provided. In addition we gained evidence that the intramolecular metal-catalyzed amination of N-(3-bromopyridin-2-yl)azaheteroarylamines and N-(2-ch
研究了N-(3-
溴吡啶-2--2-基)氮杂杂环芳基胺和N-(2-
氯吡啶-3--3-基)氮杂杂环芳基胺的分子内胺化作用。通过这种方式,我们揭示了2,3-二
溴吡啶与
氨基(苯并)(di)嗪和2-chloro-3-的自动串
联胺化(分子间和分子内Pd催化胺化)中的闭环反应机理。
碘吡啶分别与
氨基(苯并)(二)嗪。取决于底物,发生Pd催化的胺化,碱辅助的亲核芳族取代或两者的组合。提供了基于theoretical的芳香性的解释,并得到了理论计算的支持。此外,我们获得了证据表明分子内
金属催化的N胺化-(3-
溴吡啶基-2-基)氮杂杂环芳基胺和N-(2-
氯吡啶基-3-基)氮杂杂环芳基胺的确包含未被氢原子取代的氮原子。