Ketone-enol structures in carboxy indanone and tetralone compounds investigation with NMR spectroscopy

In this study, the studies of the dynamic NMR with the 1D-, 2D-NMR spectral analysis of some carboxy indanone and tetralone derivatives synthesized by Göksu and his group were examined. The results of the spectral analysis was consistent with the structure of the compounds. In dynamic NMR experiments at different temperatures, keto-enol tautomerism were studied. The reaction of some compounds were examined with acid and base. The enol form of mono methoxy compounds was dominant at room temperatures whereas the keto form was observed at high temperatures (+40, +50...°C).