New Synthetic Route to Bilin Derivatives Bearing meso-Aryl Groups and Study of Their Properties.
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Accession number;04A0258590
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| Title;New Synthetic Route to Bilin Derivatives Bearing meso-Aryl Groups and Study of Their Properties. |
| Author;
YAMAUCHI TAKAE
(Kyoto Univ., Graduate School, JPN)
FURUKAWA HIROTAKA
(Kyoto Univ., Graduate School, JPN)
MIZUTANI TADASHI
(Doshisha Univ., Fac. of Eng.)
KITAGAWA SUSUMU
(Kyoto Univ., Graduate School, JPN)
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Journal Title;Abstracts. Symposium on Biofunctional Chemistry
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Journal Code:L0836A
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ISSN:
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VOL.18th;NO.;PAGE.14-15(2003)
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| Figure&Table&Reference; |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;As a new synthetic route to bilin derivatives, we examined reactivity of meso-tetraarylporpnyrins under the condition of coupled oxidation and obtained bilin derivatives. By comparing the reactivity of various porphyrins, it seems that an electrophilic attack by coordinated dioxygen molecules to the meso position caused the oxidative cleavage of porphyrin macrocycle. When the coupled oxidation of meso-tetraphenylporphyrin was performed at high temperature (70.DEG.C.), the main product was bilindione. The bilin derivative, which obtained by the reaction at room temperature, showed irreversible photo isomerization. (author abst.) |
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