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

共 24 条

[21]

Ramamurthy V., 1991, PHOTOCHEMISTRY ORG C

[22] SIZE, SHAPE, AND SITE SELECTIVITIES IN THE PHOTOCHEMICAL-REACTIONS OF MOLECULES ADSORBED ON PENTASIL ZEOLITES - EFFECTS OF COADSORBED WATER [J].

TURRO, NJ ;

CHENG, CC ;

ABRAMS, L ;

CORBIN, DR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1987, 109 (08) :2449-2456

[23]

ZUPAN M, 1988, COLLECT CZECH CHEM C, V53, P1745

[24] THE PHOTOCHEMISTRY OF 2-HALO-1-TETRALONES - THE EFFECT OF METAL(II) SALTS AND SOLID SUPPORTS ON THE NATURE OF CARBON HALOGEN BOND-CLEAVAGE [J].

ZUPANCIC, N ;

SKET, B .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1992, 63 (03) :303-310

← 1 2 3 →