Poly(cyclopropenone)s: Formal Inclusion of the Smallest Hückel Aromatic into π-Conjugated Polymers
作者:Patricia A. Peart、John D. Tovar
DOI:10.1021/jo101108f
日期:2010.8.20
hydrolyzed to the respective cyclopropenones. The unusually strong dipole moment associated with the cyclopropenone renders this core formally aromatic, an electronic structure that becomes more important within individual monomers upon protonation of the carbonyl function with trifluoroacetic acid or alkylation with triethyloxonium salts. The electronic properties of cyclopropenone polymers in their pristine
描述了π-共轭环丙烯聚合物的前体的合成。通过亲电取代原位生成的环丙烯阳离子,可以轻松制备用于化学和电化学操作的单体,然后将其水解为相应的环丙烯酮。与环丙烯酮相关的异常强的偶极矩使该核芯具有正式的芳香性,这种电子结构在用三氟乙酸将羰基官能化或用三乙基氧鎓盐进行烷基化后在单个单体中变得更加重要。讨论了处于原始状态和酸化后的环丙烯酮聚合物的电子性能,以及对酸也敏感但没有添加芳香族元素的共轭含羰基聚合物。