SELECTIVITY IN THE TIO2-MEDIATED PHOTOCATALYTIC OXIDATION OF THIOETHERS

被引：81

作者：

FOX, MA

ABDELWAHAB, AA

机构：

[1] Department of Chemistry University of Texas at Austin, Austin

来源：

TETRAHEDRON LETTERS | 1990年 / 31卷 / 32期

关键词：

D O I：

10.1016/S0040-4039(00)97667-6

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The relative rates of photooxygenation of substituted diphenyl sulfides on irradiated TiO2 powders suspended in oxygenated acetonitrile correlate linearly with σ+, as is consistent with formation of a surface bound cation radical in the primary photoprocess. Substituted dibenzyl sulfides, in contrast, suffer C-S cleavage upon photocatalyzed oxidation. Factors disposing these reactions toward preferential sulfoxide formation or bond cleavage are discussed. © 1990.

引用

页码：4533 / 4536

页数：4