Synthetic Models of the Active Site of Cytochrome P??450. 1st Communication. The Synthesis of a Doubly??Bridged Iron (II)??Porphyrin Carrying a Tightly Bound Thiolate …
Abstract The doubly-bridged iron (II)-tetraphenylporphyrin derivative 6, carrying a sterically fixed S− ligand in the 'proximal'position and the substrate at the 'distal'site, was synthesised as an enzyme model for cytochrome P-450. Compound 36, the CO complex of 6, displays a split Soret band (403 and 457 nm) similar to the native cytochrome P-450.