Preparation and Electrochemical Properties of 1,4,8,11,15,18,22,25-Octalkylphthalocyanines Containing Four Trithiole Rings
作者:Takeshi Kimura、Takahiro Suzuki、Yutaka Takaguchi、Akinori Yomogita、Takatsugu Wakahara、Takeshi Akasaka
DOI:10.1002/ejoc.200500654
日期:2006.3
5-(o-xylylenedithio)phthalonitriles 3a–d with lithium in n-pentanol. Reductive removal of the four o-xylylene groups from 4b and 4c was performed with lithium/THF/ammonia, and the octathiolate anions generated were then treated with elemental sulfur to give the new phthalocyanines 6b and 6c, respectively, each containing four trithiole rings, after partial desulfurization and ring-contraction reactions of the corresponding
1,4,8,11,15,18,22,25-Octalkyl-2,3;9,10;16,17;23,24-tetrakis(o-xylylenedithio)phthalocyanines 4a–d(烷基 = 乙基,丁基通过在正戊醇中用锂处理 3,6-二烷基-4,5-(邻苯二甲硫基)邻苯二甲腈 3a-d,以中等产率制备 ((、辛基和十二烷基)。用锂/四氢呋喃/氨从 4b 和 4c 中还原去除四个邻二甲苯基团,然后用元素硫处理产生的八硫醇阴离子,分别得到新的酞菁 6b 和 6c,每个都含有四个三硫醇环,在相应的酞菁5b和5c部分脱硫和缩环反应后。酞菁的结构由1H NMR光谱和MALDI-TOF质谱确定。在紫外/可见光谱的 λmax ≈ 770 nm 处观察到 4a-d 的 Q 带的吸收,而在一个区域中发现 4b-Ni、5b、5c 和 6c 的吸收,相对于 4a 发生蓝移-d。当在浓硫酸中测量 6c