Effective Palladium-Catalyzed Synthesis of Triarylethene-Based Molecules in Aqueous Solution
作者:Yan Zhu、Peng Sun、Hailong Yang、Linhua Lu、Hong Yan、Marc Creus、Jincheng Mao
DOI:10.1002/ejoc.201200577
日期:2012.9
Highly effective and selective Pd-catalyzed coupling reactions of 1,1-dibromo-1-alkenes with various arylboronic acids have been performed in aqueoussolution under mild conditions. The method is simple, economic, and practical for the synthesis of triarylethene-based compounds.
effective base for deprotonative coupling reactions of toluenes with ketones. Various functionalities are allowed on the toluenes. Notably, this system proved successful with low-reactive toluenes bearing a large pKa value compared to that of the conjugate acid of LiHMDS (hexamethyldisilazane, 25.8, THF), as demonstrated by 4-phenyltoluene (38.57, THF) and toluene itself (∼43, DMSO).