Friedel–Crafts alkylation between chalcone epoxides and heteroarenes induced by triarylaminium salt
作者:Congde Huo、Xiaolan Xu、Xiaodong Jia、Xicun Wang、Jinzhu An、Chougu Sun
DOI:10.1016/j.tet.2011.10.062
日期:2012.1
Triarylaminiumsalt was disclosed as a highly efficient nonmetallic initiator for the Friedel–Crafts reaction between chalcone epoxides and heteroarenes to construct a series of complex β-heteroaryl α-ketols in mild conditions and with good yields. Chalcone epoxides were presented as valuable halogen-free pre-electrophile in Friedel–Crafts alkylation through the formation of the stabilized benzylic
Approach to Construct Polysubstituted 1,2-Dihydronaphtho[2,1-<i>b</i>]furans and Their Aerobic Oxidative Aromatization
作者:Congde Huo、Xiaolan Xu、Jinzhu An、Xiaodong Jia、Xicun Wang、Cheng Wang
DOI:10.1021/jo300827s
日期:2012.9.21
2-naphthols to construct polysubstituted 1,2-dihydronaphtho[2,1-b]furans. The DDQ/NaNO2/O2 catalytic system was first applied to the aerobic oxidative aromatization of heterocycles, and a simple and efficient one-pot tandem FC alkylation/annulation/aerobic oxidative aromatization procedure was also developed for the synthesis of complex naphtho[2,1-b]furans.
公开了三芳基ami盐作为查尔酮环氧化物和2-萘酚之间新型Friedel-Crafts烷基化/环状级联反应以构建多取代的1,2-二氢萘并[2,1- b ]呋喃的有效引发剂。DDQ / NaNO 2 / O 2催化系统首先用于杂环的好氧氧化芳构化,还开发了一种简单高效的一锅串联FC烷基化/环化/好氧氧化芳构化方法来合成复杂的萘[2]。 ,1- b ]呋喃。
Tandem reaction between chalcone epoxides and 2-naphthyl ethers to construct complex naphtho[2,1-b]furans
作者:Congde Huo、Jinzhu An、Xiaolan Xu、Xiaodong Jia、Xicun Wang、Lisheng Kang
DOI:10.1016/j.tetlet.2012.12.078
日期:2013.2
The reaction of chalcone epoxides with 2-naphthyl ethers can be initiated by stable triarylaminium salt. And after subsequent aerobic oxidative aromatization in one pot, a series of polysubstituted naphtho[2,1-b]furans were delivered.
查尔酮环氧化物与2-萘醚的反应可以通过稳定的三芳基ami盐引发。然后在一个锅中进行好氧氧化芳构化后,输送了一系列多取代的萘并[2,1- b ]呋喃。