33274-36-1Relevant academic research and scientific papers
meso-Reactivity of Porphyrins and Related Compounds. Part 9. Photo-oxygenation of Octaethyloxophlorin
Bonnett, Raymond,Chaney, Brian D.
, p. 1063 - 1068 (2007/10/02)
The photo-oxygenation of octaethyloxophlorin has been investigated under basic and under neutral conditions.In both cases unstable intermediate stages are observed spectroscopically.In methanolic sodium methoxide the solution becomes bleached and tetraethyl(methanol)propentdyopent is a significant product.In neutral solutions (e.g. benzene-methanol) the major products are octaethyl-5,15-dioxo-5,15-dihydroporphyrin (4) and octaethyl-19-formyl-21H,24H-bilin-1,15-dione (7), the formation of octaethyl-21H,24H-bilin-1,19-dione (6) being a minor pathway.A mechanistic rationalisation is proposed.
