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
收藏
页码：4533 / 4536
页数：4
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