Page 1. Aust. J. Chern., 1983, 36, 1159-66 The Effect of Acid Concentration on the Pyridine Nitramine Rearrangement: an NMR Study Leslie W. Deady and Olga L. Korytsky Organic Chemistry Department, La Trobe University, Bundoora, Vic. 3083. ... I A 1 I 5 4 3 Chemical shift Fig. ...