The Journal of Organic Chemistry

Sterically Crowded Amines. IV. Secondary and Tertiary Bispropargylic Amines and Their Hydrogenation Products1

GF Hennion, CV DiGiovanna

Index: Hennion; Sheehan Journal of the American Chemical Society, 1949 , vol. 71, p. 1965

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Citation Number: 17

Abstract

The nmr spectrum of heptaniethyl-3-pyrroline (XIIIa) showed three singlets at T 9.09, 8.65, and 7.91, respectively, with peak height ratios of 4: 2: 1. The infrared spectrum showed a peak at 6.03 p but no peaks in the 10-11-p region indicating a tetrasubstituted double bond. The nmr spectrum of 3-methylene-2, 2, 4, 5, 5-pentamethylpyrrolidine hydrochloride (XIV