Effenberger, FranzStrobel, Hartmut2009-08-282016-03-312009-08-282016-03-311993316227188http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-44492http://elib.uni-stuttgart.de/handle/11682/1184http://dx.doi.org/10.18419/opus-1167The conjugated polyenes 10, 11, 21, 22, and 26 with 9-anthryl and 2-tetraphenylporphyrinyl (TPP) terminal groups and an androstane unit incorporated into the polyene chain were synthesized by Wittig or Wittig-type olefinations. In most but not all cases the desired all-(E) isomers could be obtained from the (E)/(Z)-isomeric mixtures by chromatographic purification. From the UV/Vis spectra it is concluded that in all cases the TPP group and the polyene chain are electronically separated, whereas the 9-anthryl residue and the connected dienyl moiety in 10 and 11 are electronically amalgamated. In 21, 22, and 26 a selective excitation of the anthryl group, the TPP moiety, and the polyene is possible.deinfo:eu-repo/semantics/openAccessPolyene , Steroide , Spacer540article