Synthese von Diterpenen als mögliche biogenetische Vorläufer des C₂₀‐Carotinoides Crocetin

Abstract

Synthesis of Diterpenes as Possible Biogenetic Precursors of the C 20 ‐Carotenoid Crocetin With regard to the investigation of the biosynthesis of the C 20 ‐carotenoids in saffron the four diterpenes 6–9 were synthesized, who differ only in their degree of saturation. A detailed analysis of their 1 H‐ and 13 C‐NMR spectra has been achieved by their mutual comparison.