Transition‐Metal‐Free DMAP‐Mediated Aromatic Esterification of Amides with Organoboronic Acids
作者:Tao Wang、Yanqing Wang、Kai Xu、Yuheng Zhang、Jiarui Guo、Lantao Liu
DOI:10.1002/ejoc.202100478
日期:2021.6.14
A new, transition-metal-free, effective method for aromatic esterification of amides with organoboronic acids has been developed, leading to a wide range of benzoate derivatives with yields ranging from moderate to good. The catalytic reaction shows broad substrate scope and excellent functional group tolerance.
Gold-Catalyzed C–O Cross-Coupling Reactions of Aryl Iodides with Silver Carboxylates
作者:Guifang Chen、Bo Xu
DOI:10.1021/acs.orglett.3c02254
日期:2023.9.1
We have developed a C–O cross-coupling reaction of (hetero)aryl iodides with silver carboxylates via a AuI/AuIII catalytic cycle. The transformation featured exclusive chemoselectivity and moisture/air insensitivity. Aromatic and aliphatic (including primary, secondary, and tertiary) silver carboxylates are all suitable substrates. Moreover, this protocol worked well intermolecularly and intramolecularly
我们开发了(杂)芳基碘化物与羧酸银通过 Au I /Au III催化循环进行的 C-O 交叉偶联反应。该转化具有独特的化学选择性和湿气/空气不敏感性。芳香族和脂肪族(包括伯、仲和叔)羧酸银都是合适的底物。此外,该方案在分子间和分子内均表现良好。最重要的是,无论底物的电子效应和空间位阻如何,都获得了良好的产率。
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