Iron-Catalyzed Arylation of Aromatic Ketones and Aldehydes Mediated by Organosilanes
作者:Risto Savela、Marcin Majewski、Reko Leino
DOI:10.1002/ejoc.201402023
日期:2014.7
arylation of aromatic carbonyl compounds is reported. The use of 4 % FeCl3 or Fe(acac)3 as the catalyst, in combination with a slight excess of chlorotrimethylsilane and triethylsilane, chlorination of benzylic ketones and aldehydes with subsequent Friedel–Craftsalkylation of arenes is achieved. Although the method is limited by the general constraints associated with Friedel–Craftsalkylation reactions
A Surprising Substituent Effect Provides a Superior Boronic Acid Catalyst for Mild and Metal-Free Direct Friedel-Crafts Alkylations and Prenylations of Neutral Arenes
作者:Carolynne L. Ricardo、Xiaobin Mo、J. Adam McCubbin、Dennis G. Hall
DOI:10.1002/chem.201500020
日期:2015.3.9
for Friedel–Crafts alkylations is an important objective of interest toward the production of pharmaceuticals and commodity chemicals. Herein, 2,3,4,5‐tetrafluorophenylboronic acid was identified as a potent air‐ and moisture‐tolerant metal‐free catalyst that significantly improves the scope of direct Friedel–Crafts alkylations of a variety of slightly activated and neutral arenes, including polyarenes