Skip to main content
SpringerLink
Log in

Zum Mechanismus der photochemischen (Z)⇆(E)-Isomeriseierung von Gallenpigment-Partialstrukturen

Concerning the mechanism of the photochemical (Z)⇆(E) isomerization of bile pigment partial structures

Kurze Kitteilung

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

Abstract

The photochemical isomerization (Z)⇆(E) at the exocyclic double bond of pyrromethenones is shown to proceed via a singlet excited state using sensitization and quenching experiments as well as measuring quantum yields of isomerization, fluorescence and phosphorescence.

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

Access this article

Log in via an institution

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

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Literatur

  1. H. Falk, K. Grubmayr undO. Hofer, Mh. Chem.106, 301 (1975).

    Google Scholar 

  2. H. Falk, K. Grubmayr, U. Herzig undO. Hofer, Tetrahedron Lett.1975, 559;H. Falk, K. Grubmayr, G. Höllbacher, O. Hofer, A. Leodolter, F. Neufingerl undJ. M. Ribó, Mh. Chem.108, 1113 (1977).

  3. H. Falk undK. Grubmayr, Angew. Chem.89, 487 (1977); Internat. Ed. (1977).

    Google Scholar 

  4. H. Falk, K. Grubmayr, O. Hofer, F. Neufingerl undJ. M. Ribó, Mh. Chem.107, 831 (1976);H. Falk, O. Hofer undA. Leodolter, l. c. 907 (1976).

    Google Scholar 

  5. A. F. McDonagh, Biochem. Biophys. Res. Commun.44, 1305 (1971);D. A. Lightner, Photochem. Photobiol.19, 457 (1974);D. A. Lightner undY. T. Park, Tetrahedron Lett.1976, 2209;C. S. Foote undT. Y. Ching, J. Amer. Chem. Soc.97, 6209 (1975);J. O. Grunewald, J. C. Walker undE. R. Strope, Photochem. Photobiol.24, 29 (1976).

    Google Scholar 

  6. E. J. Land, Photochem. Photobiol.24, 475 (1976).

    Google Scholar 

  7. W. G. Herkstroeter, J. Amer. Chem. Soc.97, 4161 (1975).

    Google Scholar 

  8. P. Singh undE. F. Ullman, J. Amer. Chem. Soc.98, 3018 (1976); für die Überlassung dieser Quencher danken wir Herrn Prof. Dr.A. Eschenmoser sehr herzlich.

    Google Scholar 

  9. J. B. Birks, Chem. Phys. Lett.38, 437 (1976).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Institut für Organische Chemie, Universität Wien, Währinger Straße 38, A-1090, Wien, Österreich

    Heinz Falk & Franz Neufingerl

Authors
  1. Heinz Falk
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Franz Neufingerl
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Falk, H., Neufingerl, F. Zum Mechanismus der photochemischen (Z)⇆(E)-Isomeriseierung von Gallenpigment-Partialstrukturen. Monatshefte für Chemie 108, 1181–1183 (1977). https://doi.org/10.1007/BF00897699

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00897699

Search

Navigation