Reactions of a-Oxo Ketenes with Amides: Experimental Data and Semiempirical AM1 Molecular Orbital Calculations
作者:Emin Saripinar、Ilhan Ozer Ilhan、Yunus Akçamur
DOI:10.3987/com-02-9504
日期:——
nucleophilic addition reactions with amides. Some of α-N-acyl-oxo-amide derivatives (4a-h) obtained show keto-enol tautomerism. The reaction mechanism of ketene (R1) with formamide (R2) are calculated by AMI method. Transition states (TS1 and TS2) were further confirmed by vibrational analysis and characterized by the corresponding imaginary vibration modes and frequencies. According to calculations, intermediate