Synthesis of bipyridine and terpyridine based ruthenium metallosynthons for grafting of multiple pyrene auxiliaries
作者:Christine Goze、Denis V. Kozlov、Felix N. Castellano、Jean Suffert、Raymond Ziessel
DOI:10.1016/j.tetlet.2003.09.127
日期:2003.11
The synthesis of novel ruthenium(II) bipyridine or terpyridine complexes bearing an increasing number of pyrene or toluyl moieties is described. The ruthenium complexes are constructed in a first step with ligands bearing the required bromine functions, followed in a second step by stepwise grafting of 1-ethynylpyrene or 4-ethynyltoluene promoted by Pd(0). A complex bearing a protected triethylsilylacetylene
描述了带有越来越多的pyr或甲苯基部分的新型钌(II)联吡啶或三联吡啶配合物的合成。第一步,用带有所需溴功能的配体构建钌配合物,然后在第二步中逐步接枝由Pd(0)促进的1-乙炔基re或4-乙炔基甲苯。还制备了具有受保护的三乙基甲硅烷基乙炔功能的配合物。该功能用K 2 CO 3原位脱保护并与1-溴py交叉偶联,得到了可溶的络合物,其中两个pyr部分通过乙炔基间隔基线性连接至联吡啶配体之一。这些高度着色的配合物在rt和77 K时在溶液中均显示出明确定义的吸收和发射性质。