溶剂对苯乙炔衍生物EPHG的螺旋聚合的影响

Helix-sense-selective polymerization of achiral (4-ethynylphenyl) hydrogalvinoxyl in the presence of various solutions

本文合成了4-[(3,5-二异丁基-4-羟基苯)(3,5-二异丁基-4-苯醌基)甲基]苯乙炔单体(EPHG),由铑络合物和手性胺催化体系引发聚合,利用CD-UV谱图确认生成的聚合物是螺旋结构.讨论了聚合机理,调查了溶剂对聚合的影响,结果表明:在四氢呋喃溶液中,铑络合物[Rh(cod)Cl]2和(R)-苯乙基胺催化体系引发EPHG聚合成同一手性的螺旋聚合物,并且有较高的收率。

[4-[（3,5-Di-tert-butyl-4-hydroxyphenyl）（3,5-di-tert-butyl-4-oxocyclohexa-2,5-dien- 1-ylidene）methyl ]phenyl]acetylene（EPHG） was synthesized, which was initiated by the catalytic system consisting of Rhodium complex and chiral amine to provide one-handed helical polymer confirmed by CD-UV spectras. The paper recounted polymerization mechanism and investigated the affection of solvents. The research found that The catalytic system consisting of [Rh（cod）Cl]2 and chiral amine can initiate EPHG to provide one-handed helical polymer with high yield in THF.