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Pyrindinchemie, 1. Mitt.: Über die Synthese des 3-Hydroxy-1-methyl-4-oxo-1,4-dihydropyrrolo[2′,3′:3,4]cyclopenta[1,2—b]pyridin-2-carbonsäureäthylesters (Ein Vertreter eines neuen heterocyclischen Ringsystems)

Preparation of ethyl 3-hydroxy-1-methyl-4-oxo-1.4-dihydropyrrolo[2′.3′:3.4]cyclopenta[1.2—b]pyridin-2-carboxylate. A new heterocyclic ring system

  • Organische Chemie und Biochemie
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Abstract

4 is synthesized starting from1 over the chloride3 and then cyclized byDieckmann condensation to the title compound8. The structure of4 is confirmed by chemical proof. By means of1H-NMR-spectral analysis it could be determined that1 exists as internal salt (2a) of ethyl 5-hydroxy-7-oxo-7H-1-pyrindin-6-carboxylate.

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Literatur

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Authors and Affiliations

  1. Institut für Organische Chemie der Technischen Hochschule Wien, Getreidemarkt 9, A-1060, Wien, Österreich

    D. Binder

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  1. D. Binder
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Binder, D. Pyrindinchemie, 1. Mitt.: Über die Synthese des 3-Hydroxy-1-methyl-4-oxo-1,4-dihydropyrrolo[2′,3′:3,4]cyclopenta[1,2—b]pyridin-2-carbonsäureäthylesters (Ein Vertreter eines neuen heterocyclischen Ringsystems). Monatshefte für Chemie 105, 179–186 (1974). https://doi.org/10.1007/BF00911303

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  • DOI: https://doi.org/10.1007/BF00911303

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