DYE-SENSITIZED OXYGENATION AND DIMERIZATION OF 4-METHOXYSTYRENE THROUGH ELECTRON-TRANSFER

被引：18

作者：

KOJIMA, M ^{[1
]}

KURIYAMA, Y ^{[1
]}

SAKURAGI, H ^{[1
]}

TOKUMARU, K ^{[1
]}

机构：

[1] UNIV TSUKUBA, DEPT CHEM, TSUKUBA, IBARAKI 305, JAPAN

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1991年 / 64卷 / 09期

关键词：

D O I：

10.1246/bcsj.64.2724

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Photoreactions of 4-methoxystyrene (1) sensitized with dyes such as Acriflavine, Rhodamine 6G, and Methylene Blue in methanol under oxygen afforded 4-methoxybenzaldehyde, its dimethyl acetal, and 2-methoxy-2-(4-methoxyphenyl)ethanol as oxidation products together with the corresponding dimers, cis- and trans-cyclobutanes in a ratio of cis/trans ca. 5/95. On the basis of quenching studies of fluorescence and T-T absorption of the dyes, the oxygenation and dimerization are proposed to proceed through an electron transfer from 1 to excited singlet dyes but not to involve generation of singlet oxygen.

引用

页码：2724 / 2729

页数：6

共 25 条

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