Chlorophylls. VIII. Synthesis of a new chlorophyll derivative and anthraquinone-based dyad and triad molecules for executing photoinduced electron transfer

Abstract

A new chlorophyll derivative and anthraquinone based dyad and triad model compounds have been synthesized. Trifluoroacetic anhydride is shown to be an efficient reagent for ether bond formation between 3′-hydroxyphytochlorin and 2-(hydroxymethyl)anthraquinone. The application of Mukaiyama's reagent for the final esterification allowed us to create quite complex molecules under very mild conditions. All diastereomers of the new dyads and triads were successfully separated using HPLC techniques. © Acta Chemica Scandinavica 1997.