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Configurational and conformational aspects of some 5-methylenedisubstituted-3-pyrrolin-2-ones

Zur Konfiguration und Konformation von einigen 5-Methylen-disubstituierten-3-pyrrolin-2-onen

  • Organische Chemie Und Biochemie
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Abstract

The influence of the disubstitution at the exocyclic carbon atom of 5-methylene-3-pyrrolin-2-ones upon the configurational and conformational equilibria is studied. The results obtained confirm and extend the observations reported in the literature about the factors determining the configurational and conformational equilibria in monosubstituted systems, i.e.: 5-arylmethylene-3—pyrrolin-2-ones and 5(1H)-pyrromethenones.

Zusammenfassung

Es wird der Einfluß der Disubstitution des exocyclischen C-Atoms von 5-Methylen-3-pyrrolin-2-onen auf das Konfigurations- und Konformationsgleich-gewicht untersucht. Die erhaltenen Resultate stehen im Einklang mit der Literatur, die sich auf monosubstituierte Verbindungen [5-Arylmethylen-3-pyrrolin-2-one, 5 (1H)-Pyrromethenone und strukturverwandte Gallenpigmente] beziehen, und vertiefen das Verständnis der Faktoren, die für diese Gleichgewichte maßgebend sind.

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Authors and Affiliations

  1. Departament de Química Orgànica, Facultat de Química, Universitat de Barcelona, E-08028, Barcelona, Catalunya, Spain

    Ramon Mercè, Merce Pujol, Josep M. Ribó, Francesc R. Trull, Genis Valera & Asunción Vallès

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  1. Ramon Mercè
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  2. Merce Pujol
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  3. Josep M. Ribó
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  4. Francesc R. Trull
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  5. Genis Valera
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  6. Asunción Vallès
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Mercè, R., Pujol, M., Ribó, J.M. et al. Configurational and conformational aspects of some 5-methylenedisubstituted-3-pyrrolin-2-ones. Monatsh Chem 117, 631–652 (1986). https://doi.org/10.1007/BF00817901

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  • DOI: https://doi.org/10.1007/BF00817901

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