Studies in Tertiary Amine Oxides. Part-II - Carbon-13 Nuclear Magnetic Resonance Spectra of Selected Acetylenic Amines, their N-Oxides and the Meisenheimer Rearrangement Products

Article abstract of DOI:10.1002/mrc.1270140303

Carbon-13 NMR chemical shifts and ¹J(CH3), ²J(CH) and ³J(CH) coupling constants of selected saturated nitrogen heterocyclic molecules containing the acetylenic moiety have been determined.These NMR parameters have also been determined for the corresponding N-oxides and the Meisenheimer rearrangement products, the O-allenylhydroxylamines.The effect of the N-oxidation on the chemical shifts of the ring and the acetylenic carbon atoms is discussed.