Consecutive S<sub>N</sub><sup>H</sup>and Suzuki-Miyaura Cross-Coupling Reactions - an Efficient Synthetic Strategy to Pyrimidines Bearing Pyrrole and Indole Fragments
作者:Egor V. Verbitskiy、Gennady L. Rusinov、Valery N. Charushin、Oleg N. Chupakhin、Ekaterina M. Cheprakova、Pavel A. Slepukhin、Marina G. Pervova、Marina A. Ezhikova、Mikhail I. Kodess
DOI:10.1002/ejoc.201201035
日期:2012.10.8
The combination of the Suzuki–Miyaura cross-coupling and nucleophilic aromatic substitution of hydrogen reactions is a versatile tool for the syntheses of 4-(1R-pyrrol-2-yl)- and 4-(1R-indol-3-yl)-5-(hetero)aryl-substituted pyrimidines from commercially available 5-bromopyrimidine. The SNH [AE, (addition–elimination)] and SNH [AO, (addition–oxidation)] reactions of 5-bromopyrimidine with pyrroles and
Suzuki-Miyaura 交叉偶联和氢反应的亲核芳香取代的组合是合成 4-(1R-pyrrol-2-yl)- 和 4-(1R-indol-3-yl)- 的通用工具来自市售的 5-溴嘧啶的 5-(杂)芳基取代的嘧啶。通过气相色谱-质谱法研究了 5-溴嘧啶与吡咯和吲哚的 SNH [AE,(加成-消除)] 和 SNH [AO,(加成-氧化)] 反应。通过X射线晶体结构分析首次建立了中间体σH加合物以及吡咯-(杂)芳基嘧啶和吲哚-(杂)芳基嘧啶二元组的结构。