1153-79-3Relevant articles and documents
Simple and efficient procedure for the friedel-crafts acylation of aromatic compounds with carboxylic acids in the presence of P2O5/AL2O3 under heterogeneous conditions
Hajipour, Abdol R.,Zarei, Amin,Khazdooz, Leila,Ruoho, Arnold E.
experimental part, p. 2702 - 2722 (2009/12/06)
An efficient and chemoselective method for the Friedel-Crafts acylation of aromatic compounds using P2O5/Al2O3 and carboxylic acids. Both aromatic and aliphatic carboxylic acids reacted easily to afford the corresponding aromatic ketones in good yields.
BiCl3-catalyzed Friedel-Crafts acylation reactions: Bismuth(III) oxychloride as a water insensitive and recyclable procatalyst
Répichet, Sigrid,Le Roux, Christophe,Roques, Nicolas,Dubac, Jacques
, p. 2037 - 2040 (2007/10/03)
The Friedel-Crafts acylation of activated and polycyclic aromatics is efficiently catalyzed by bismuth(III) chloride which is generated in situ from bismuth(III) oxychloride, a water insensitive and eco-friendly material. Bismuth(III) oxychloride is easily recovered in near quantitative yields after an aqueous work-up.
Carboxylic Trifluoromethanesulfonic Anhydrides as Highly Effective Acylation Agents. - Perfluoroalkanesulfonic Acid Catalyzed Acylation of Arenes
Effenberger, Franz,Sohn, Erich,Epple, Gerhard
, p. 1195 - 1208 (2007/10/02)
Arene- and alkanecarboxylic trifluoromethanesulfonic anhydrides 2 and 5 are highly effective acylation agents, which react without Friedel-Crafts catalysts even with deactivated aromatics to yield aryl ketones 3 and 6, respectively.Acylation of arenes with carbonyl chlorides 4 and catalytic amounts of perfluoroalkanesulfonic acid gives ketones 3 and 6, resp., in good yields.Under similar conditions other strong Broensted acids show a considerably smaller degree of catalytic effect.