The synthesis of three octapyrrolic, 810, and four dodecapyrrolic, 1518, oligomers is reported. They are linear poly(dipyrromethene)s and potential ligands as building blocks for supramolecular architectures through self-assembly. Octapyrrolic oligomers 810 were prepared in 9095% yields by condensation of 2 equiv of a tripyrrolic compound 4 with 1 equiv of diformyldipyrrolic compounds 57. A similar procedure, involving the condensation of 2 equiv of a pentapyrrolic starting material 13 with 1 equiv of 57 or 14, was found to give rise to the corresponding dodecameric systems 1518 in 4156% yields.Key words: poly(dipyrromethene), linear polypyrroles, dipyrromethane, dipyrromethene.
报道了三种八
吡咯烷类(8-10)和四种十二
吡咯烷类(15-18)寡聚体的合成。它们是线性聚(二
吡咯甲烷)和潜在的
配体,可作为超分子结构的构建模块通过自组装。通过将2当量的三
吡咯化合物4与1当量的二甲酰二
吡咯化合物5-7缩合,制备了八
吡咯烷类寡聚体8-10,产率为90-95%。类似的程序涉及将2当量的五
吡咯起始物质13与1当量的5-7或14缩合,发现可产生相应的十二聚体系统15-18,产率为41-56%。关键词:聚(二
吡咯甲烷),线性聚
吡咯,二
吡咯甲烷,二
吡咯乙烯。