Journal of the American Chemical Society

Unsaturated Amines. I. Determination of the Proximity of Nitrogen to a Double Bond by Infrared Absorption Spectra1, 2

NJ Leonard, VW Gash

Index: Leonard; Gash Journal of the American Chemical Society, 1954 , vol. 76, p. 2781,2784

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Citation Number: 86

Abstract

The infrared absorption spectra have been determined for a series of a,@-and@, y- unsaturated tertiary amines and their salts. The absorption maximum in the double bond stretching region does not shift appreciably in going from a P, y-unsaturated amine to its salt. By contrast, a decided shift (ca. 20-50 cm.-l) toward higher frequency is observed in going from an o,@-unsaturated amine (enamine) to its salt, corresponding to the structural ...