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Synthesis 1990; 1990(11): 1085-1094
DOI: 10.1055/s-1990-27102
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Synthesen endständig substituierter, konjugierter Polyene

Franz Effenberger* , Hubert Schlosser
  • *Institut für Organische Chemie der Universität Stuttgart, Pfaffenwaldring 55, D-7000 Stuttgart 80, Germany
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Publikationsdatum:
17. September 2002 (online)

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Syntheses of Terminally Substituted Conjugated Polyenes Polyenes and polyenals of the carotenoid type with five, nine and thirteen conjugated double bonds and a variety of terminally substituents like benzenes, naphthalenes, anthracenes, and tetraphenyl porphyrines are synthesized via Wittig reactions starting from crocetin dialdehyde or 2,7-dimethyloctatriendial, respectively. The characterization, and in most cases also the separation, of the E/Z-isomers of the polyenes is possible.

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