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
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.
Copper-catalyzed ortho-C–H amination of protected anilines with secondary amines
作者:Ángel Manu Martínez、Nuria Rodríguez、Ramón Gómez Arrayás、Juan C. Carretero
DOI:10.1039/c3cc49633c
日期:——
A practical Cu-catalyzed picolinamide-directed o-amination of anilines showing excellent mono-substitution selectivity and high functional group tolerance has been developed.
A coordinating activation strategy for selective para amination of arylamine with pyrazole is developed. Various substrates are compatible, giving the corresponding products in moderate to good yields. This strategy provides a practical solution for the efficient synthesis of arylamine‐containing pharmacophores from simple starting materials. A single electron transfer mechanism is suggested for this