One-Pot Metal-Free Cascade Synthesis of 2-(Perfluoroalkyl)pyrroles
作者:Xuechun Sun、Jing Han、Jie Chen、Hongmei Deng、Min Shao、Hui Zhang、Weiguo Cao
DOI:10.1002/ejoc.201501010
日期:2015.11
An efficient synthesis of 2-(perfluoroalkyl)pyrroles that employs a sequential one-pot three-component reaction between substituted ω-bromoacetophenones, anilines, and methyl perfluoroalk-2-ynoates has been developed. This transition-metal-free cascade process provides a practical way to construct perfluoroalkylated pyrroles in moderate to good yields.
A general and mild method for the construction of a carbon–nitrogen bond via copper-catalyzedoxidativecross-coupling of amines with α-aminocarbonyl compounds was achieved. Amines, either aliphatic primary amines, aromatic primary amines or secondary amines can be used as the starting materials. When R2 was different from R3, two isomers would be observed. Therefore, this reaction system has a broad
A general access to 1,1-cyclopropane aminoketones and their conversion into 2-benzoyl quinolines
作者:Zhenjun Mao、Haijun Qu、Yanyan Zhao、Xufeng Lin
DOI:10.1039/c2cc35235d
日期:——
1,1-Cyclopropane aminoketones were efficiently synthesized in high yields by the tandem reaction of α-amino aryl ketones with vinyl sulfonium salts using DBU as the base in CH2Cl2. This methodology was utilized to synthesize 2-benzoyl quinolines.
Selective electrochemical thiocyanation/selenocyanation of C(sp3)-H and C(sp2)-H bonds
作者:Zhihao Wang、Binbin Chen、Qing Pang、Jialei Xu、Jiabin Shen、Jun Xu、Wanmei Li
DOI:10.1016/j.mcat.2024.114060
日期:2024.4
Herein, we report a general and eco-friendly electrochemical method for the selective thiocyanation/selenocyanation of C(sp)-H and C(sp)-Hbonds in nitrogen-containing compounds under exogenous oxidant-free conditions. This is the first example of selective thiocyanation based on a nitrogen-containing compound with excellent regional principles and chemical selectivity for different reaction sites