Complex Polyheterocycles and the Stereochemical Reassignment of Pileamartine A via Aza-Heck Triggered Aryl C–H Functionalization Cascades
作者:Benjamin T. Jones、Javier García-Cárceles、Lewis Caiger、Ian R. Hazelden、Richard J. Lewis、Thomas Langer、John F. Bower
DOI:10.1021/jacs.1c08615
日期:2021.9.29
N-polyheterocycles can be accessed via intramolecular Pd(0)-catalyzed alkene 1,2-aminoarylation reactions. The method uses N-(pentafluorobenzoyloxy)carbamates as the initiating motif, and this allows aza-Heck-type alkene amino-palladation in advance of C–H palladation of the aromatic component. The chemistry is showcased in the first total synthesis of the complex alkaloid (+)-pileamartine A, which has resulted in
结构复杂的苯并和螺融合的 N-多杂环可以通过分子内 Pd(0)-催化的烯烃 1,2-氨基芳基化反应获得。该方法使用N -(五氟苯甲酰氧基)氨基甲酸酯作为起始基序,这允许在芳烃组分的 C-H 钯化之前进行 aza-Heck 型烯烃氨基化。这种化学反应在复杂生物碱 (+)-pileamartine A 的首次全合成中得到了展示,这导致了其绝对立体化学的重新分配。