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Gharib A.,Islamic Azad University at Mashhad | Gharib A.,Agricultural Researches and Services Center | Pesyan N.N.,Urmia University | Vojdanifard L.,Education Organization of Razavi Khorasan | And 3 more authors.
Bulgarian Chemical Communications | Year: 2014

A new efficient one-pot three-component condensation of aromatic aldehydes, aromatic ketones, and aromatic amines in the presence of ZnO nanoparticles as an inexpensive and effective catalyst for the synthesis of β-amino carbonyl compounds by Mannich reaction is described. The reaction was carried out at room temperature under solventfree conditions. Mild reaction temperature, cost-effective catalyst, simple product separation and catalyst recycling were notable achievements in the reaction. Simple experimental conditions and product isolation procedure make this protocol potentially applicable for the development of a clean and environment-friendly strategy for the synthesis of β-amino ketones. The present methodology offers several advantages such as good yields, short reaction times and a recyclable catalyst with a very easy work-up. © 2014 Bulgarian Academy of Sciences, Union of Chemists in Bulgari. Source


Gharib A.,Islamic Azad University at Mashhad | Gharib A.,Agricultural Researches and Services Center | Pesyan N.N.,Urmia University | Vojdanifard L.,Education Organization of Razavi Khorasan | And 4 more authors.
Bulgarian Chemical Communications | Year: 2014

New convenient conditions for the synthesis of 1,3-diaryl-2-propene-1-ones are described. 1,3-diaryl-2-propene-1-ones were readily prepared in the presence of heteropolyacids as heterogeneous recyclable catalysts in good yields and short times. © 2014 Bulgarian Academy of Sciences, Union of Chemists in Bulgari. Source

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