105147-38-4Relevant articles and documents
An Efficient Photochemical Synthesis of Conformationally Restricted Quinone-substituted Porphyrins
Osuka, Atsuhiro,Morikawa, Soichi,Maruyama, Kazuhiro,Hirayama, Satoshi,Minami, Takaaki
, p. 359 - 361 (2007/10/02)
Quinone-substituted porphyrins were synthesized by the self-photosensitized reaction of porphyrins including phenol groups; intramolecular fluorescence quenching was inefficient in the conformationally restricted systems.
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
Maruyama, Kazuhiro,Furuta, Hiroyuki,Osuka, Atsuhiro
, p. 6149 - 6156 (2007/10/02)
Photoreactions of porphyrin (TPP) with phenol and/or quinone in non-polar benzene solution were studied mainly by the CIDNP technique.In the photoreaction of TPP with 4-methoxyphenol (1), CIDNP effects due to TPP.- and 1.+ were observed, while the generation of considerable amounts of free 4-methoxyphenoxyl radical was indicated by ESR and CIDNP in the three-component system involving TPP, 1, and p-benzoquinone (Q).Based on these results, two new photoreactions leading to permanent products were developed: (1) photosensitized dimerization of 1 and (2) photo-induced cross coupling of Q to porphyrins covalently linked with phenol group.The unique role of phenol in the photo-induced electron transfer reaction of TPP and Q in a non-polar solvent was discussed in terms of its dual function as both the proton and electron donor.