The cobalt-catalyzed regioselective C-H alkoxylation of 1-naphthylamide with diols through a bidentate-chelation assistance has been developed. In this transformation, not only linear diols, but also branched diols and oligoethylene glycols were tolerated under current reaction conditions, affording the corresponding hydroxyalkyl aryl ethers. In addition, control experiments suggested that picolinoyl
Copper-Catalyzed Remote C–H Functionalizations of Naphthylamides through a Coordinating Activation Strategy and Single-Electron-Transfer (SET) Mechanism
作者:Jun-Ming Li、Yong-Heng Wang、Yang Yu、Rui-Bo Wu、Jiang Weng、Gui Lu
DOI:10.1021/acscatal.6b03671
日期:2017.4.7
carbon–hydrogen (C–H) functionalization reactions. Herein, the copper-catalyzed and picolinamide-assisted remote p-C–H sulfonylation of 1-naphthylamides was realized. The synthetic utility of this method was further examined by sequential functionalizations and the efficient synthesis of the pharmaceutically useful 5-HT6 serotonin receptor ligand. This approach also provided a general strategy for other p-C–H bond
实现p -C Ar -H的位点选择性是直接碳氢(C–H)官能化反应的主要挑战之一。在此,实现了铜催化和吡啶甲酰胺辅助的1-萘甲酰胺的远程p -CH磺酰化。通过顺序功能化和药物合成的5-HT 6血清素受体配体的有效合成,进一步检查了该方法的合成效用。这种方法还提供了一个总体战略的其他p-C–H键功能化,例如C–O,C–Br,C–I,CC和C–N键的高选择性结构。控制实验和理论计算表明,该C–H磺酰化反应可能会通过单电子转移过程进行。
Silver(I) Promoted the C4–H Bond Phosphonation of 1-Naphthylamine Derivatives with H-Phosphonates
作者:Lixiao Zhao、Mengmeng Sun、Fan Yang、Yangjie Wu
DOI:10.1021/acs.joc.1c00971
日期:2021.9.3
A simple and efficient protocol for silver-promoted direct C–H phosphonation of 1-naphthylamine derivatives with H-phosphonates was described. This reaction proceeded smoothly for 1-naphthylamine derivatives at the C4 site, providing a facile and efficient route to 4-phosphonated 1-naphthylamine derivatives. This phosphonation could tolerate a diverse type of functional groups at the pyridinyl and
An efficient protocol for cobalt (II)-catalyzed regioselective aryl C8H bond alkoxylation of 1-naphthylamine derivatives with readily available alcohols has been developed, demonstrating an efficient approach to 8-alkoxy-1-naphthylamine derivatives with good functional group tolerance. Note that the picolinamide moiety as a bidentate directing group may play a key role in this regioselective transformation
Iron(III)-catalyzed regioselective direct remote C–H carboxylation of naphthyl and quinoline amides was developed using CBr4 and alcohol. The reaction involves a radical pathway using a coordination activation strategy and single electron transfer process. The use of sustainable iron catalysis, selectivity, and the substrate scope are the important practical features.