49680-05-9Relevant academic research and scientific papers
B2O3/Al2O3 as a new, highly efficient and reusable heterogeneous catalyst for the selective synthesis of β-enamino ketones and esters under solvent-free conditions
Chen, Jiu-Xi,Zhang, Chang-Fu,Gao, Wen-Xia,Jin, Hui-Le,Ding, Jin-Chang,Wu, Hua-Yue
experimental part, p. 1552 - 1556 (2010/11/16)
Boron oxide adsorbed on alumina (B2O3/Al 2O3) has been found to be a new and highly efficient heterogeneous catalyst for the synthesis of β-enamino ketones and esters by the enamination of various primary and secondary amines with β-dicarbonyl compounds under solvent-free conditions. The important features of this methodology are broad substrate scope, high yield, no requirement of metal catalysts, high regio-and chemoselectivity and environmental friendliness. In addition, the catalyst could be recovered easily after the reactions and reused without evident loss of reactivity.
