λ<sup>3</sup>-Iodane/Lewis Acid Mediated Intramolecular Cross-Nucleophile Coupling of β-Amino Acrylates: Chemodivergent Syntheses of Indole Alkaloidal Frameworks
作者:Zenghui Sun、Shilin Xue、Yining Zhang、Shiyang Xin、Ran Guo、Xiaowei Shi、Yan Fu、Huicai Guo、Yi Liu、Lei Wang
DOI:10.1021/acs.orglett.2c02060
日期:2022.7.29
Herein, we report an unprecedented intramolecular cross-nucleophile coupling strategy of indole tethered β-amino acrylates using a catalyst system combining λ3-iodanes and Lewis acids to achieve the chemodivergent synthesis of three unique alkaloid skeletons. It was worth noting that the acquisition of spiroindolenines and azepino[4,5-b]indoles derivatives was switchable with choice of the Lewis acids
在此,我们报告了一种前所未有的吲哚系链β-氨基丙烯酸酯的分子内交叉亲核偶联策略,该策略使用结合λ 3 -碘烷和路易斯酸的催化剂体系来实现三种独特生物碱骨架的化学发散合成。值得注意的是,螺二氢吲哚和氮杂[4,5- b ]吲哚衍生物的获得可以通过路易斯酸的选择进行切换。此外,含有内酯片段的多环螺二氢吲哚也可以通过交叉亲核偶联级联分子内缩合序列首次获得。