TY - JOUR
T1 - 13C n.m.r. investigation on the nitrogen methylation of some azabenzenes
AU - van de Weijer, Peter
AU - Mohan, Chandra
PY - 1977
Y1 - 1977
N2 - The 1H and 13C n.m.r. spectra of N-methylated pyridine, pyridazine, pyrimidine and pyrazine and N,N-dimethylated pyrimidine and pyrazine have been recorded and analysed. The change in the 13C chemical shifts under the influence of N-methylation (Δδ) in the diazabenzenes could be predicted by the Δδ values of pyridine. A comparison of the Δδ values of N-methylation with those of N-protonation showed that both reactions have a similar effect.
AB - The 1H and 13C n.m.r. spectra of N-methylated pyridine, pyridazine, pyrimidine and pyrazine and N,N-dimethylated pyrimidine and pyrazine have been recorded and analysed. The change in the 13C chemical shifts under the influence of N-methylation (Δδ) in the diazabenzenes could be predicted by the Δδ values of pyridine. A comparison of the Δδ values of N-methylation with those of N-protonation showed that both reactions have a similar effect.
U2 - 10.1002/mrc.1270090111
DO - 10.1002/mrc.1270090111
M3 - Article
SN - 0030-4921
VL - 9
SP - 53
EP - 55
JO - Organic Magnetic Resonance
JF - Organic Magnetic Resonance
IS - 1
ER -