¹³C nuclear magnetic resonance of N-heterocycles. Part 2. Natural abundance carbon-13 and nitrogen-15 nuclear magnetic resonance studies of Δ³- and Δ⁴-pyrrolin-2-ones and model compounds

1 January 1977

journal article
Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2

No. 13,p. 1746-1749
https://doi.org/10.1039/p29770001746

Abstract

Carbon-13 and nitrogen-15 Fourier transform n.m.r. spectra of Δ³- and Δ⁴-pyrrolin-2-ones and their N-methyl and -acetyl derivatives, and those of succinimide, maleimide, pyrrolidin-2-one, piperidin-2-one, and 2-piperidone, have been measured and analysed. Carbon and nitrogen shifts are discussed in relation to charge density distributions and chemical reactivities for Δ³- and Δ⁴-pyrrolin-2-ones. Coupling constant values of these latter compounds are also reported.

Keywords

NUCLEAR MAGNETIC RESONANCE
NITROGEN

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13C nuclear magnetic resonance of N-heterocycles. Part 2. Natural abundance carbon-13 and nitrogen-15 nuclear magnetic resonance studies of Δ3- and Δ4-pyrrolin-2-ones and model compounds

Abstract

Keywords

¹³C nuclear magnetic resonance of N-heterocycles. Part 2. Natural abundance carbon-13 and nitrogen-15 nuclear magnetic resonance studies of Δ³- and Δ⁴-pyrrolin-2-ones and model compounds