Synthesis of Alkyl-Aryl Ethers by Copper-catalyzed Etherization Reactions of Aryl Fluorides with Tetraalkylammonium Bromides and H2O
作者:Feng Wang、Boxiao Tang、Yexiang Xie、Jinheng Li
DOI:10.1002/cjoc.201090383
日期:2010.11
Synthesis of alkyl arylethers via copper‐catalyzed etherizations of electron‐deficient aryl fluorides with quaternary ammonium bromides and water has been developed. In the presence of Cu(OAc)2, POPh3 (L4) and Cs2CO3, a variety of electron‐deficient aryl fluorides underwent the reaction with quaternary ammonium bromides and H2O in moderate to good yields. The mechanism was also discussed.
已经开发了通过缺电子的芳基氟化物与溴化季铵和水的铜催化醚化反应来合成烷基芳基醚的方法。在存在Cu(OAc)2,POPh 3(L4)和Cs 2 CO 3的情况下,各种缺电子的芳基氟化物与季铵溴化物和H 2 O反应的产率中等至良好。还讨论了该机制。
Nitro-Group–Directed Selective Dealkylation
作者:Xiujie Ji、Bowen Cheng、Jun Song、Chao Liu、Yufei Wang
DOI:10.1080/00397910802633439
日期:2009.5.7
Abstract Nitro-substituted phenolicethers were successfully selectively dealkylated. The directing effect of the nitro group is supported by the excellent regioselectivities and good yields. These reactions demonstrate that the complexation of AlCl3 with the phenolic nitro group is stronger than with the phenolicether alone. The mechanism for the selective dealkylation directed by the nitro group