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Davoodnia, Abolghasem,Khojastehnezhad, Amir,Tavakoli-Hoseini, Niloofar Korean Chemical Society 2011 Bulletin of the Korean Chemical Society Vol.32 No.7
Carbon-based solid acid catalyst was found to be highly efficient, eco-friendly and recyclable heterogeneous catalyst for the multicomponent reaction of dimedone, aromatic aldehydes, and a nitrogen source (ammonium acetate or aromatic amines) under solvent-free conditions, giving rise to 1,8-dioxodecahydroacridines in high yields. The present methodology offers several advantages, such as a simple procedure with an easy work-up, short reaction times, high yields, and the absence of any volatile and hazardous organic solvents.
Abolghasem Davoodnia,Amir Khojastehnezhad,Niloofar Tavakoli-Hoseini 대한화학회 2011 Bulletin of the Korean Chemical Society Vol.32 No.7
Carbon-based solid acid catalyst was found to be highly efficient, eco-friendly and recyclable heterogeneous catalyst for the multicomponent reaction of dimedone, aromatic aldehydes, and a nitrogen source (ammonium acetate or aromatic amines) under solvent-free conditions, giving rise to 1,8-dioxodecahydroacridines in high yields. The present methodology offers several advantages, such as a simple procedure with an easy work-up,short reaction times, high yields, and the absence of any volatile and hazardous organic solvents.
Zeinali-Dastmalbaf, Mohsen,Davoodnia, Abolghasem,Heravi, Majid M.,Tavakoli-Hoseini, Niloofar,Khojastehnezhad, Amir,Zamani, Hassan Ali Korean Chemical Society 2011 Bulletin of the Korean Chemical Society Vol.32 No.2
A green and efficient method for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones and -thiones through one-pot three-component reaction of ethyl acetoacetate, an aryl aldehyde, and urea or thiourea in acetonitrile using silica gel-supported polyphosphoric acid (PPA-$SiO_2$) as catalyst is described. Compared to the classical Biginelli reaction conditions, the present methodology offers several advantages such as high yields, relatively short reaction times, mild reaction condition and a recyclable catalyst with a very easy work up.
Mohsen Zeinali-Dastmalbaf,Abolghasem Davoodnia,Niloofar Tavakoli-Hoseini,Amir Khojastehnezhad,Majid M. Heravi,Hassan Ali Zamani 대한화학회 2011 Bulletin of the Korean Chemical Society Vol.32 No.2
A green and efficient method for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones and -thiones through one-pot three-component reaction of ethyl acetoacetate, an aryl aldehyde, and urea or thiourea in acetonitrile using silica gel-supported polyphosphoric acid (PPA-SiO_2) as catalyst is described. Compared to the classical Biginelli reaction conditions, the present methodology offers several advantages such as high yields, relatively short reaction times, mild reaction condition and a recyclable catalyst with a very easy work up.