A novel deacylation during the amination of trifluoromethyl β-dicarbonyl compounds
作者:Stefania Fioravanti、Lucio Pellacani、Federico Ramadori、Paolo A. Tardella
DOI:10.1016/j.tetlet.2007.09.014
日期:2007.10
Starting from trifluoromethyl beta-dicarbonyl compounds, a rare loss of CF3CO was observed in the amination reactions performed under heterogeneous conditions using NsONHCO(2)Et as the aminating agent and CaO or NaH as the base, while corresponding nonfluorinated beta-dicarbonyl compounds under analogous conditions give non deacylated aminated compounds. This reaction can facilitate a direct synthesis of N-substituted alpha-amino esters or alpha-amino ketones. (C) 2007 Elsevier Ltd. All rights reserved.