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Internal rotations in N,N-dimethyl-2,4-dinitroaniline

✍ Scribed by David D. MacNicol

Book ID
104215093
Publisher
Elsevier Science
Year
1975
Tongue
French
Weight
113 KB
Volume
16
Category
Article
ISSN
0040-4039

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✦ Synopsis

A study by the dynamic n.m.r. method has established' that appreciable barriers to internal rotation of the dimethylamino-group around the N-aryl bond exist in para-substituted N.Ndimethylanilines (I), a barrier dependence being found reflecting the contribution of the zwitterionic resonance form (II), where 2 denotes a group capable of strong electron-accepting resonance.

H kN.CH3

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