Carbon-13 n.m.r. investigation on the nitrogen methylation of the mono- and diazanaphthalenes

Peter van de Weijer, Chandra Mohan, Dirk M.W. van den Ham

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The 13C n.m.r. spectra of the N-methylated mono- and diazanaphthalenes have been recorded and analysed. It has been shown that N-methylation as well as N-protonation in cinnoline occur predominantly at the -nitrogen atom. N-methylation and N-protonation show a similar effect on the 13C chemical shifts
Original languageUndefined
Pages (from-to)165-168
JournalOrganic Magnetic Resonance
Issue number1
Publication statusPublished - 1977
Externally publishedYes


  • IR-70729

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