A facile synthesis of 4-aryl-2H-1-benzopyran-2-ones

  • Vinod K. Ahluwalia
  • Daljeet Singh
  • Rishi P. Singh
Organische Chemie Und Biochemie

Abstract

Reaction of 2-hydroxybenzophenones (1,3,7,8) with ethoxycarbonyl-methylenetriphenylphosphorane affords 4-aryl-2H-1-benzopyran-2-ones (2,4–6) in excellent yields.

Keywords

4-Aryl-2H-1-benzopyran-2-ones Ethoxycarbonylmethylene-triphenylphosphorane Friedel-Crafts reaction 2-Hydroxybenzophenones Wittig reaction 

Eine einfache Synthese für 4-Aryl-2H-1-benzopyran-2-one

Zusammenfassung

Die Reaktion der 2-Hydroxybenzophenone1,3,7 und8 mit Ethoxycarbonyl-methylentriphenylphosphoran ergab die 4-Aryl-2H-1-benzopyran-2-one2 und4–6 in ausgezeichneten Ausbeuten.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Donnelly D. M. X., Neoflavanoids. In: The Flavonoids (Mabry T. J., Harborne J. B., Mabry H., eds.), p. 801. London: Chapman & Hall. 1975.Google Scholar
  2. 2.
    Monache G. D., Botta B., Neto A. S., Lima R. A. D., Phytochemistry22, 1657 (1983).Google Scholar
  3. 3.
    Ahluwalia V. K.,Seshadri T. R., J. Chem. Soc.1957, 970.Google Scholar
  4. 4.
    Donnelly D. M. X., Thompson J. C., Whalley W. B., Ahmed S., J. Chem. Soc. Perkin I1973, 1737.Google Scholar
  5. 5.
    Ollis W. D.,Gottlieb O. R., Chem. Commun.1968, 1396.Google Scholar
  6. 6.
    Mukerjee S. K., Saroja T., Seshadri T. R., Indian J. Chem.7, 671 (1969).Google Scholar
  7. 7.
    Mali R. S.,Yadav V. J., Synthesis1977, 464.Google Scholar
  8. 8.
    Ahluwalia V. K., Singh R. P., Tripathi R. P., Monatsh. Chem.115, 765 (1984).Google Scholar
  9. 9.
    Kauffmann H., Pannwitz P., Ber.43, 1208 (1910).Google Scholar
  10. 10.
    Ahluwalia V. K., Mehta A. C., Seshadri T. R., Proc. Ind. Acad. Sci.45 A, 15 (1957).Google Scholar
  11. 11.
    Karrer P., Liechtenstein N., Helv. Chim. Acta11, 789 (1928).Google Scholar
  12. 12.
    Ulubelen A., Kerr R. R., Mabry T. J., Phytochemistry21, 1145 (1982).Google Scholar

Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • Vinod K. Ahluwalia
    • 1
  • Daljeet Singh
    • 1
  • Rishi P. Singh
    • 1
  1. 1.Department of ChemistryUniversity of DelhiDelhiIndia

Personalised recommendations