Design of a photosystem to harvest visible-light into electrons: photosensitised one electron redox reactions in organic synthesis

Abstract

Based on synchronous oxidation-reduction processes, analogous to photosynthetic mechanistic paradigm, a photosystem utilising Ph₃P or ascorbic acid as sacrificial electron donor has been developed to halvest electrons from visible light photons. The utility of such photosystem has been demonstrated by initiating various one-electron reductive -C-C-bo nd formation reactions. Biologically active PGE₁, and C-Furanosides are synthesised employing this photosystem at a crucial step.