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NMR spectra of Δ3- and Δ4-pyrrolin-2-one

✍ Scribed by R. Mondelli; V. Bocchi; G. P. Gardini; L. Chierici

Publisher
John Wiley and Sons
Year
1971
Tongue
English
Weight
674 KB
Volume
3
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The spectra of Δ^3^‐ and Δ^4^‐pyrrolin‐2‐one were analysed and the sign of all the coupling constants determined by tickling and triple resonance experiments. A positive allylic interaction (J~xz~ in 2) is reported and four‐bond couplings are discussed in particular. Deuterium exchange affords evidence for the tautomeric equilibrium between 1 and 2.

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