Skip to main content
Log in

Ba(OH)2 as catalyst in organic reactions, IV. Reaction between coumarin and diethyl malonate

Ba(OH)2 als Katalysator organischer Reaktionen, 4. Mitt.: Die Reaktion zwischen Cumarin und Diethylmalonat

  • Organische Chemie Und Biochemie
  • Published:
Monatshefte für Chemie / Chemical Monthly Aims and scope Submit manuscript

Abstract

The reaction of diethyl malonate and coumarin catalyzed by an activated barium hydroxide catalyst (C-200) in a solid-liquid-system is described. NoMichael addition takes place. An unusual nucleophilic addition-elimination process to the C=O bond of coumarin is observed and the new compound is described the first time. The process is explained by the microcrystalline structure of the solid, the nature of the active sites of the catalyst and the chelating action of coumarin on BaII of the lattice.

Zusammenfassung

Es wird die Reaktion von Diethylmalonat mit Cumarin unter der katalytischen Wirkung von aktiviertem Bariumhydroxid (C-200) in einem Fest-flüssig-System beschrieben. Es ist keineMichael-Addition zu beobachten. Es tritt eine ungewöhnliche Addition-Eliminierung an der C=O-Bindung des Cumarin ein und die dabei entstehende Verbindung wird erstmals beschrieben. Der Prozeß wird auf der Basis der mikrokristallinen Struktur des Festkörpers, der Natur der aktiven Stellen am Katalysator und der chelierenden Wirkung von Cumarin auf die Gitter-BaII-Ionen erklärt.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Garcia-Raso A.,Garcia-Raso J. A.,Campaner B.,Mestres R.,Sinisterra J. V., Synthesis1982, 1037.

  2. Sinisterra J. V., Marinas J. M., Monatsh. Chem.116, 133 (1985).

    Google Scholar 

  3. Garcia-Raso A., Sinisterra J. V., Marinas J. M., Rev. Roumaine de Chimie27, 1047 (1982).

    Google Scholar 

  4. Sinisterra J. V.,Iglesia M., unpublished data.

  5. Brunauer S., Emmet P., Teller E., J. Amer. Chem. Soc.60, 309 (1938).

    Google Scholar 

  6. ASTM card 26–154 for Ba(OH)2·H2O and card 21–73 for Ba(OH)2.

  7. Sinisterra J. V.,Barrios J., J. Chem. Soc. Perkin Trans II, in press.

  8. Michaud M., Rev. Chimie Minerale5, 89 (1968).

    Google Scholar 

  9. Barnighausen H. W., Zeits. Anorg. Chem.342, 233 (1966).

    Google Scholar 

  10. Grueninger H. W., Barnighausen H., ibid.368, 53 (1968).

    Google Scholar 

  11. Sinisterra J. V., Garcia-Blanco F., Iglesias M., Marinas J. M., React. Kinet. Catal. Lett.25, 277 (1984).

    Google Scholar 

  12. Ibid., in press.

  13. Habashy G. M., Kolta G. A., J. Inorg. Nucl. Chem.34, 57 (1972).

    Google Scholar 

  14. Garcia-Raso A., Sinisterra J. V., Marinas J. M., Polish. J. Chem.56, 1435 (1982).

    Google Scholar 

  15. Campelo J. M., Garcia A., Luna D., Marinas J. M., Afinidad39, 325 (1982).

    Google Scholar 

  16. Frecket J. M.,Pelle G., J. Chem. Soc. Chem. Comm.1975, 225.

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Sinisterra, J.V., Marinas, J.M. Ba(OH)2 as catalyst in organic reactions, IV. Reaction between coumarin and diethyl malonate. Monatsh Chem 117, 111–121 (1986). https://doi.org/10.1007/BF00809178

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00809178

Keywords

Navigation