Journal article

Aromatic amides. xi: 1, 3- Phenylenediamines and their diacyl derivatives

ID Rae

Australian Journal of Chemistry | Published : 1978

Abstract

In 4,6-disubstituted N,N'-(1,3-phenylene)bispivalamides, the ring hydrogen between the two amide groups is deshielded by both and consequently shows its 1H nuclear magnetic resonance at extremely low field. Preferential stabilization of a particular amide configuration by dipole-dipole interactions gives rise to differential shielding effects in N,N'-(4-chloro-1,3-phenylene)bispivalamide and to strong deshielding of the aromatic C5-H in N,N'-(2-methylthiopyrimidine-4,6-diyl)bispivalamide.

University of Melbourne Researchers

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