Novel phenylazomethine dendrimers: Synthesis and structural properties
Novel phenylazomethine dendrimers: Synthesis and structural properties
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DOI：
10.1021/ol006241t
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发表时间：
2000-10-05
期刊：
影响因子：
5.2
通讯作者：
Yamamoto, K
中科院分区：
文献类型：
--
作者：
Higuchi, M;Shiki, S;Yamamoto, K
[图解]在四氯化钛存在下，通过芳香酮和芳胺的脱水，用聚合法合成了由pi共轭主链组成的新型树状大分子--树状聚苯亚胺(DPA)。与传统的线性聚苯偶氮亚胺不同，所得的DPA具有较高的溶解性。核磁共振研究揭示了DPA G4的构象刚性。具有多个甲亚胺基团作为金属离子配位中心的DPA有望成为新型的配体。
[GRAPHICS]The novel dendrimers consisting of a pi-conjugated backbone, the dendritic polyphenylazomethines (DPAs), were synthesized by the convergent method via the dehydration of aromatic ketones with aromatic amines in the presence of titanium(IV) tetrachloride. The obtained DPAs have a high solubility unlike the conventional linear polyphenylazomethines. NMR studies revealed the conformational rigidity of DPA G4. DPAs having many azomethine groups as the coordination site for metal ions are expected to be novel ligands.