PHOTOCHEMISTRY OF SUBSTITUTED BENZOYLFORMATE ESTERS - A CONVENIENT METHOD FOR THE PHOTOCHEMICAL OXIDATION OF ALCOHOLS

被引:27
作者
PIRRUNG, MC
TEPPER, RJ
机构
[1] Department of Chemistry, P. M. Gross Chemical Laboratory, Duke University, Durham
关键词
D O I
10.1021/jo00113a029
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The production of aldehydes and ketones via photochemical hydrogen atom transfer in substituted benzoylformate esters of primary and secondary alcohols has been investigated. Substituent effect studies have shown that (2,4-dimethoxybenzoyl)formate (DMBF) esters give superior performance. A divergence in the byproducts derived from the ester group (the benzaldehyde (and presumably CO) or the benzoic acid (and presumably CO2)) is observed depending on the presence of oxygen. A mechanistic rationale for the formation of the benzoic acid has been advanced based on the known trapping of intermediate 1,4-biradicals by oxygen followed by fragmentation.
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页码:2461 / 2465
页数:5
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