First synthesis of symmetrical and unsymmetrical conjugated trinuclear phthalocyanines covalently linked by ethynyl bridges

被引：19
作者：
Garcia-Frutos, Eva M. [1 ]
Diaz, David D. [1 ]
Vazquez, Purificacion [1 ]
Torres, Tomas [1 ]
机构：
[1] Univ Autonoma Madrid, Dept Quim Organ C1, E-28049 Madrid, Spain
来源：
SYNLETT | 2006年 / 19期
关键词：
phthalocyanines; triad; ethynyl; Sonogashira reaction;
D O I：
10.1055/s-2006-951547
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
For the first time, symmetrical and unsymmetrical pi-electron-conjugated trinuclear phthalocyanines (Pcs) were synthesized with the Pc units connected directly by ethynyl linkages. Symmetrically alkoxy-substituted bridged ethynylphthalocyaninatozinc(II) triad was prepared by direct Sonogashira cross-coupling reaction between suitable diiodo Pc and alkynyl Pc derivatives. Nevertheless, the synthesis of the Pe-based triad having a donor-acceptor electron character was carried out by means of co-cyclotetramerization of two different phthalonitriles, namely 4,5-bis(propylsulfonyl)phthalonitrile and 4,5-[hexa(butoxy)ethynylphthalocyaninatozine(II)]phthalonitrile in the presence of a eobalt(II) salt.
引用
收藏
页码：3231 / 3236
页数：6
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