The development of Friedel-Crafts alkylations with alcohols under continuous-flow conditions using heterogeneous catalysts is reported. The reactivities and durabilities of the examined catalysts were systematically investigated, which showed that montmorillonite clay is the best catalyst for these reactions. A high turnover frequency of 9.0 × 102 h-1 was recorded under continuous-flow conditions,
Iron-Catalyzed Benzylation Reaction of Arenes with Benzyl Thiocyanates
作者:Jin-Heng Li、Ri-Yuan Tang、Xiao-Kang Guo、Dong-Yun Zhao、Xing-Guo Zhang、Chen-Liang Deng
DOI:10.1055/s-0031-1290343
日期:2012.3
A novel, regioselective protocol for the synthesis of diphenylmethane derivatives has been developed by using iron-catalyzed Friedel-Crafts reaction of arenes with benzyl thiocyanates. In the presence of FeBr3, a variety of benzyl thiocyanates underwent the reaction with arenes to selectively afford the corresponding diarylmethane derivatives in moderate to high yields.
Pozdnyakovich, Yu. V.; Borodovitsyn, V. V.; Pozdnyakovich, S. A., Journal of Organic Chemistry USSR (English Translation), 1983, p. 353 - 359
作者:Pozdnyakovich, Yu. V.、Borodovitsyn, V. V.、Pozdnyakovich, S. A.、Shein, S. M.
DOI:——
日期:——
Rae, Ian D.; Woolcock, Mark L., Australian Journal of Chemistry, 1987, vol. 40, # 5, p. 1023 - 1029
作者:Rae, Ian D.、Woolcock, Mark L.
DOI:——
日期:——
Intermolecular Friedel–Crafts reaction catalyzed by InCl3
作者:Miho Kaneko、Ryuji Hayashi、Gregory R. Cook
DOI:10.1016/j.tetlet.2007.08.011
日期:2007.10
Our recent discovery that In(III) salts were able to activate halides catalytically under mild conditions for the intermolecular Friedel-Crafts cyclization prompted us to explore this highly efficient activation in intermolecular Friedel-Crafts reactions. The alkylation of p-xylene with allylic and benzylic halides was demonstrated under catalytic and mild condition to afford in some cases quantitative yields of the monoalkylated products without the need to employ large excesses of reactants. (c) 2007 Elsevier Ltd. All rights reserved.