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Chemical shift non-equivalence of methylene protons adjacent to an asymmetric nitrogen atom

✍ Scribed by A. Vigevani; B. Gioia; B. Cavalleri; G. G. Gallo

Publisher
John Wiley and Sons
Year
1971
Tongue
English
Weight
286 KB
Volume
3
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The chemical shift non‐equivalence of the methylene protons adjacent to the quaternary nitrogen in compounds of the type has been investigated. The behaviour of the examined compounds is interpreted in terms of different rotation rates around the three CN^⊕^ bonds. The vicinal and geminal coupling constants of the non‐equivalent methylene protons are also reported and discussed in terms of steric factors.

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