Pd<sup>II</sup>
-Catalyzed Oxidative Tandem aza-Wacker/Heck Cyclization for the Construction of Fused 5,6-Bicyclic N,O-Heterocycles
作者:Chenghao Ye、Xuezhen Kou、Jingzhao Xia、Guoqiang Yang、Li Kong、Quhao Wei、Wanbin Zhang
DOI:10.1002/asia.201800646
日期:2018.8.6
A PdII‐catalyzed oxidative tandem cyclization was developed for the construction of fused 5,6‐bicyclic N, O‐heterocycles. This reaction was enabled by the combined use of a 3‐methylpyridine ligand and pentafluorobenzoic acid additive. A range of heterocyclic products with different substituents could be prepared in moderate to good yields via this methodology. Several transformations, including a scaled‐up
Pd II催化的氧化串联环化反应被开发用于构建稠合的5,6-双环N,O-杂环。通过联合使用3-甲基吡啶配体和五氟苯甲酸添加剂可以实现该反应。通过该方法,可以以中等到良好的产率制备一系列具有不同取代基的杂环产物。一些变革,包括产品的扩大规模的准备 2,也分别进行了展示我们的方法的良好的适用性。