Iron-catalyzed selective construction of indole derivatives <i>via</i> oxidative C(sp<sup>3</sup>)–H functionalization of indolin-2-ones
作者:Wei Chen、Lang-Qi Wen、Xiao-Bing Lu、Hui Zhou
DOI:10.1039/d4ob00133h
日期:2024.4.17
manipulating the reaction conditions, particularly the choice of solvent, catalyst loading, and reaction sequence, a series of valuable indole derivatives, including isatins and symmetrical and nonsymmetrical isoindigos, were selectively synthesized in good to excellent yields. Furthermore, the gram-scale synthesis of compounds with biological anticancer activity under simple conditions highlights their great
考虑到开发强大的催化剂的重要性和吲哚衍生物的药效团特征,我们描述了一种铁催化的吲哚啉-2-酮氧化C(sp 3 )–H功能化的可转换方法。使用FeCl 2作为催化剂、空气作为氧化剂、醇作为溶剂,选择性转化表现出优异的活性和化学选择性。通过控制反应条件,特别是溶剂的选择、催化剂负载量和反应顺序,选择性地合成了一系列有价值的吲哚衍生物,包括靛红以及对称和非对称异靛,收率良好至优异。此外,在简单条件下克级合成具有生物抗癌活性的化合物凸显了其在实际应用中的巨大潜力。