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p-Toluene Sulfonic Acid-Promoted Rapid and Facile Baeyer Condensation with Microwave Irradiation under Solvent-Free Conditions

A.R. Khosropour^a,*, K. Esmaeilpoor^b and A. Moradie^a

^aDepartment of Chemistry, Razi University, Kermanshah 67149, Iran
^bDepartment of Chemistry, Malek-Ashtar Technology University, Isfahan, 83145115, Iran

A fast and efficient method has been developed for the synthesis of triarylmethanes catalyzed by p-TsOH under microwave irradiation. The reactions of different aryl aldehydes carrying activated and deactivated groups with N,N-dimethylaniline in the presence of a catalytic amount of p-TsOH produced the corresponding triarylmethanes in good to excellent yields.

Keywords: Aldehydes, Baeyer condensation, N,N-Dimethylaniline, Microwave, Catalyst, p-Toluene sulfonic acid