1153-79-3Relevant academic research and scientific papers
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.
Friedel-Crafts acylation of aromatic compounds with carboxylic acids in the presence of P2O5/SiO2 under heterogeneous conditions
Zarei, Amin,Hajipour, Abdol R.,Khazdooz, Leila
scheme or table, p. 6715 - 6719 (2009/04/07)
A convenient and efficient procedure for the Friedel-Crafts acylation of aromatic compounds with carboxylic acids in the presence of P2O5/SiO2 is described. Both aromatic and aliphatic carboxylic acids reacted easily to afford the corresponding aromatic ketones. The use of non-toxic and inexpensive materials, simple and clean work-up, short reaction times and good yields of the products are the advantages of this method.
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.
High-Throughput Synthesis of Alkylbenzophenones with Indium Triflate in the Absence of Solvents Using Microwave
Koshima, Hideko,Kubota, Masashi
, p. 3983 - 3988 (2007/10/03)
A series of alkylbenzophenones were rapidly and efficiently prepared from alkylbenzenes and benzoyl chlorides by Friedel-Crafts acylation catalyzed with indium triflate under solvent-free conditions by microwave heating.
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.
Acylierung von Aromaten mit Carbonsaeure-dihalogenphosphorsaeure-anhydriden
Effenberger, Franz,Koenig, Gerd,Klenk, Herbert
, p. 926 - 936 (2007/10/02)
Aryl ketones 4, 9 are formed in good yields without the addition of Friedel-Crafts catalysts from activated arenes (e. g. alkylbenzenes, anisole) and aryl- and alkylcarboxylic dihalophosphoric anhydrides 1, 2, and 7, 8, respectively.The anhydrides 7, 8 may be prepared in situ by mixing the respective carboxylic and dihalophosphoric anhydrides.This procedure is especially advantageous in care of the less stable compounds.
