A Suitable Functionalization of Nitroindazoles with Triazolyl and Pyrazolyl Moieties via Cycloaddition Reactions
作者:Mohammed Eddahmi、Nuno M. M. Moura、Latifa Bouissane、Ouafa Amiri、M. Amparo F. Faustino、José A. S. Cavaleiro、Ricardo F. Mendes、Filipe A. A. Paz、Maria G. P. M. S. Neves、El Mostapha Rakib
DOI:10.3390/molecules25010126
日期:——
The alkylation of a series of nitroindazole derivatives with 1,2-dibromoethane afforded the corresponding N-(2-bromoethyl)- and N-vinyl-nitro-1H-indazoles. The Cu(I)-catalysed azide- alkyne 1,3-dipolar cycloaddition was selected to substitute the nitroindazole core with 1,4-disubstituted triazole units after converting one of the N-(2-bromoethyl)nitroindazoles into the corresponding azide. The reactivity
一系列硝基吲唑衍生物与 1,2-二溴乙烷的烷基化得到相应的 N-(2-溴乙基)-和 N-乙烯基-硝基-1H-吲唑。在将 N-(2-溴乙基)硝基吲唑之一转化为相应的叠氮化物后,Cu(I)催化的叠氮化物-炔烃 1,3-偶极环加成反应被选择用 1,4-二取代的三唑单元取代硝基吲唑核。用带有乙烯基单元的硝基吲唑研究了与由腙-α-溴乙醛酸乙酯原位生成的腈亚胺的 1,3-偶极环加成反应的反应性。以良好至极好的产率获得了相应的硝基吲唑-吡唑啉衍生物。