DEPENDENCE OF THE REGIOSELECTIVITY OF PHOTOOXIDATIVE RING-OPENING OF THE CHLOROPHYLL MACROCYCLE ON THE COMPLEXED METAL-ION

被引：19

作者：

ITURRASPE, J

GOSSAUER, A

机构：

[1] Institut für Organische Chemie der, Universität Freiburg i.Ü, Fribourg, CH-1700, route du Musée

来源：

HELVETICA CHIMICA ACTA | 1991年 / 74卷 / 08期

关键词：

D O I：

10.1002/hlca.19910740812

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

On irradiation with visible light in the presence of air, the zinc complex 1b of pyropheophorbide-a methyl ester (1a) is photo-oxidized at the C(20) methine bridge yielding the corresponding 19-formyl-21H-bilin-1(23H)-one derivative 2. Surprisingly, the cadmium complex 1c is cleaved, under the same conditions, at the C(5) methine bridge affording the same type of bilinone which has been recently characterized as an early product of chlorophyll catabolism in plants.

引用

页码：1713 / 1717

页数：5

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