The room and low temperature absorption and c.d. spectra of the isomeric (–)-(S)-2-, 3-, and 4-pyridylethanols, (–)-(S)-(I)–(III) have been measured. The data obtained are satisfactorily interpreted by assuming the existence of a second n→π*(A2â†�A1) electronic transition of the pyridine chromophore at ca. 240 nm.
G. Gottarelli and B. Samori, J. Chem. Soc., Perkin Trans. 2, 1974, 1462 DOI: 10.1039/P29740001462
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