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Tautomerism in tetramic acids: 13C nmr determination of the structures and ratios of the tautomers in 3-acetyl-5-isopropylpyrrolidine-2,4-dione

✍ Scribed by Pieter S. Steyn; Philippus L. Wessels

Publisher: Elsevier Science
Year: 1978
Tongue: French
Weight: 215 KB
Volume: 19
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)85711-7

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✦ Synopsis

Unsymmetrical cyclic s,B'-triketones (l_) can exist in solution as four different enolic forms, tiz. the external (a,b + c,d) and the internal (a + b; c # d) tautomers.'

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