DIRECT PHOTOLYSIS AND ELECTRON-TRANSFER PHOTOOXYGENATION OF ENOL ACETATES OF 3-PHENYLPROPIOPHENONES

被引：8

作者：

ALGARRA, F

BALDOVI, MV

GARCIA, H

MIRANDA, MA

PRIMO, J

机构：

[1] UNIV POLITECN VALENCIA, CSIC, INST TECNOL QUIM, APARTADO 22012, E-46071 VALENCIA, SPAIN

[2] UNIV POLITECN VALENCIA, DEPT QUIM, E-46071 VALENCIA, SPAIN

来源：

MONATSHEFTE FUR CHEMIE | 1993年 / 124卷 / 02期

关键词：

ENOL ACETATES OF 3-PHENYLPROPIOPHENONES; 1,3-ACYL MIGRATION; PHOTOINDUCED ELECTRON TRANSFER; 2,4,6-TRIPHENYLPYRYLIUM TETRAFLUOROBORATE;

D O I：

10.1007/BF00808680

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Direct photolysis of enol acetates of 3-phenylpropiophenones la-c gives rise to the parent propiophenones 2a-c and the 1,3-acyl shift products 3a-c. By contrast, 2,4,6-triphenylpyrylium tetrafluoroborate sensitized photolysis of substrates la-c affords the alpha-acetyloxypropiophenones 79-c as the most general products. These results have been rationalized according to the generation of radical pairs in the direct photolysis and radical cations in the photoinduced electron transfer processes.

引用

页码：209 / 215

页数：7

共 15 条

[1] A NOVEL PHOTOCHEMICAL 1,4-ACYL MIGRATION IN ENOL ESTERS - THE PHOTOLYSIS OF ENOL ACETATES OF 3-PHENYLPROPIOPHENONES [J].