CIDNP study on porphyrin-photosensitized reactions with phenol and quinone. Dimerization of 4-methoxyphenol and cross coupling of benzoquinone to porphyrins covalently linked with phenol group was written by Maruyama, Kazuhiro;Furuta, Hiroyuki;Osuka, Atsuhiro. And the article was included in Tetrahedron in 1986.Category: catalyst-ligand The following contents are mentioned in the article:
Photoreactions of tetraphenylporphyrin (I) with phenols and/or quinones in C6H6 were studied mainly by the CIDNP technique. In the photoreactions of I with 4-MeOC6H4OH (II), CIDNP effects due to the radical anion of I and the radical cation of II were observed, while the generation of considerable amounts of 4-MeOC6H4O? was indicated by ESR and CIDPN in the system containing I, II, and p-benzoquinone (III). Based on these results, 2 new photoreactions leading to permanent products were developed, i.e., photosensitized dimerization of II and photo-induced cross coupling of III to porphyrins covalently linked with a phenol group. The unique role of phenol in the photo-induced electron transfer reaction of I and III in a non-polar solvent was discussed in terms of its dual function as both the proton and electron donor. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Category: catalyst-ligand).
4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. Ligand, in chemistry, any atom or molecule attached to a central atom, usually a metallic element, in a coordination or complex compound. Chiral compounds with high purities and ee values are often used as ligands for catalytically active metal complexes. Category: catalyst-ligand
Referemce:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI