Efficient Regioselective Synthesis of 6-Amino-5-benzoyl-1-Substituted 2(1<i>H</i>)-Pyridinones
作者:Hartmut Schirok、Cristina Alonso-Alija、Jordi Benet-Buchholz、Andreas H. Göller、Rolf Grosser、Martin Michels、Holger Paulsen
DOI:10.1021/jo0515428
日期:2005.11.1
A regioselective and efficient approach toward 6-amino-5-benzoyl-1-substituted 2(1H)-pyridinones by reaction of acyclic ketene aminals with propiolic acid ester was developed. The effect of the solvent and temperature on the regioselectivity of the reaction and the compatibility of the target compounds to functional group manipulations was examined. Substrates with an ortho substituent build atropisomers