Collect. Czech. Chem. Commun. 1971, 36, 2944-2950
https://doi.org/10.1135/cccc19712944

On phthalides and indandiones. XXXIX. Infrared spectra and substituent effects in 3-aroxymethylenephthalides and 3-arylthiomethylenephthalides

A. Perjéssy and M. Lácová

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