Directing Group in Decarboxylative Cross-Coupling: Copper-Catalyzed Site-Selective C–N Bond Formation from Nonactivated Aliphatic Carboxylic Acids
作者:Zhao-Jing Liu、Xi Lu、Guan Wang、Lei Li、Wei-Tao Jiang、Yu-Dong Wang、Bin Xiao、Yao Fu
DOI:10.1021/jacs.6b05788
日期:2016.8.3
Copper-catalyzed directed decarboxylative amination of nonactivated aliphatic carboxylic acids is described. This intramolecular C-N bond formation reaction provides efficient access to the synthesis of pyrrolidine and piperidine derivatives as well as the modification of complex natural products. Moreover, this reaction presents excellent site-selectivity in the C-N bond formation step through the
Divergent Synthesis of Aziridine and Imidazolidine Frameworks under Blue LED Irradiation
作者:Xiao Cheng、Bao-Gui Cai、Hui Mao、Juan Lu、Lei Li、Kun Wang、Jun Xuan
DOI:10.1021/acs.orglett.1c00979
日期:2021.6.4
We develop a visible light-promoted divergent cycloaddition of α-diazo esters with hexahydro-1,3,5-triazines, leading to a series of aziridine and imidazolidine frameworks in average good yield, by simply changing the reaction media used. It is noteworthy that the reaction occurs under sole visible light irradiation without the need for exogenous photoredox catalysts. More significantly, a reasonable
Silver-Catalyzed Three-Component Approach to Quinolines Starting from Anilines, Aldehydes, and Alcohols
作者:Xu Zhang、Zhiqiang Wang、Wenmin Liu、Ruixue Sun、Xuefeng Xu、Yanlei Yan
DOI:10.1055/s-0035-1561916
日期:——
A silver-catalyzed sequential formation of two C–C bonds for the construction of a series of polysubstituted quinolines from anilines, aldehydes, and alcohols under mild conditions has been developed. The transformation is effective for a broad range of substrates, including aliphatic alcohols, arylalkanols, cycloalkanols, and ethylene glycol, thereby permitting the expansion of the constituent architectures
A novel atom-economic synthesis of functionalized imidazolidines through copper(I)-catalyzed domino three-component coupling and cyclization reactions
作者:Yufeng Li、Zhengguang Wu、Jie Shi、Hongzhong Bu、Jiachao Gu、Yi Pan
DOI:10.1016/j.tet.2014.03.063
日期:2014.5
An interesting approach to functionalized imidazolidines is described. These compounds are obtained in a copper(I)-catalyzed domino three-component coupling and cyclization reaction involving two formaldehyde-derived imine units and a terminal alkyne. Alternatively, imidazolidines can be obtained from propargylamines and formaldehyde-derived imines. This strategy provides a straightforward and atom-economic
in addition to a small amount of demethoxylated naphthofuran II and benzoindolinone III (Scheme 1, eq. 1). Although the yield of the heterocyclic compounds II and III was poor, the carbon-carbon bond formation efficiently occurred during the reaction. We also reported the facile synthesis of 3,4-dihydro-2(1H)-quinolinones, 540 HETEROCYCLES, Vol. 90, No. 1, 2015