Highly efficient, mild and chemo- and stereoselective synthesis of enaminones and enamino esters using silica supported perchloric acid under solvent-free conditions

Das B; Venkateswarlu K; Majhi A; Reddy MR; Reddy KN; Rao YK; Ravikumar K; Sridhar B

Journal of Molecular Catalysis A-Chemical, Vol.246, No.1-2, 276-281, 2006

DOI10.1016/j.molcata.2005.11.045 Export Citation

Highly efficient, mild and chemo- and stereoselective synthesis of enaminones and enamino esters using silica supported perchloric acid under solvent-free conditions

Das B, Venkateswarlu K, Majhi A, Reddy MR, Reddy KN, Rao YK, Ravikumar K, Sridhar B

Silica supported perchloric acid (HClO4 center dot SiO2) has been utilized as a heterogeneous recyclable catalyst for a highly efficient and chemo- and stereoselective conversion of beta-dicarbonyl compounds by treatment with amines at room temperature into beta-enaminones and beta-enamino esters under solvent-free conditions. (c) 2005 Elsevier B.V. All rights reserved.

Keywords:beta-dicarbonyl compound;beta-enaminone;beta-enamino ester;HClO4 center dot SiO2;recyclable heterogeneous catalyst;solvent-free conditions