Demetalation of chlorophyll pigments.

  title={Demetalation of chlorophyll pigments.},
  author={Yoshitaka Saga and Hitoshi Tamiaki},
  journal={Chemistry & biodiversity},
  volume={9 9},
Natural chlorophylls (Chls) and bacteriochlorophyll (BChls), which are major pigments in photosynthesis, possess a central Mg (or Zn) in their cyclic tetrapyrrole macrocycles. Removal of the central metal atom from chlorophyllous pigments, called pheophytinization, is a biologically important reaction in that it allows production of the primary electron acceptors in photosystem II(-type) reaction centers and is one of the crucial steps in the Chl degradation pathway. Pheophytinization in… CONTINUE READING