INFLUENCE OF THE INTRAZEOLITE MICROENVIRONMENT ON THE FATE OF THE RADICAL PAIRS FORMED BY PHOTOLYSIS OF 3-BROMO-4-CHROMANONE

被引：4

作者：

JIMENEZ, MC ^{[1
]}

MIRANDA, MA ^{[1
]}

TORMOS, R ^{[1
]}

机构：

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

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1995年 / 86卷 / 1-3期

关键词：

INTRAZEOLITE MICROENVIRONMENT; RADICAL PAIRS; PHOTOLYSIS; 3-BROMO-4-CHROMANONE;

D O I：

10.1016/1010-6030(94)03948-T

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The photochemistry of 3-bromo-4-chromanone (1) is significantly modified by inclusion within an NaY zeolite. Disproportionation of the alpha-carbonyl radical I, to give equimolar amounts of chromone (2) and 4-chromanone (3), occurs to a lower extent than in solution. By contrast, generation of the cation II, which leads to chromone (2) and subsequently to 2-cyclehexyl-4-chromanone (4), is enhanced in the heterogeneous medium.

引用

页码：225 / 229

页数：5

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