Optically active amines. 31. Spectral observations on the substituted benzene chromophore

HE Smith, JR Neergaard, T De Paulis…

Index: Smith, Howard E.; Neergaard, Jon R.; Paulis, Tomas de; Chen, Fu-Ming Journal of the American Chemical Society, 1983 , vol. 105, # 6 p. 1578 - 1584

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Citation Number: 27

Abstract

Abstract: Examination of the isotropic absorption and circular dichroism spectra of para- substituted and 3, 5-disubstituted a-phenyl-and a-benzylethylamines and their hydrochlorides indicates that the sign of the'Lb Cotton effects (CEs) of the benzene chromophore of the unsubstituted amines and amine hydrochlorides is determined by vibronic borrowing from the'Bb-allowed transition. Thus, both (9-a-phenylethylamine and ...