Furan-Containing Chiral Spiro-Fused Polycyclic Aromatic Compounds: Synthesis and Photophysical Properties
作者:Koji Nakano、Ko Takase、Keiichi Noguchi
DOI:10.3390/molecules27165103
日期:——
aromatic metamorphosis. The absorption and emission properties of the obtained furan-containing chiral spiro-fused PACs are apparently different from those of their thiophene analogs that have been reported, owing to the increased electron-richness of furan compared to thiophene. All of the furan-containing chiral spiro-fused PACs were found to be circularly polarized luminescent materials.
螺稠合多环芳族化合物 (PAC) 作为刚性手性支架受到越来越多的关注。然而,含呋喃的螺稠合 PAC 非常有限。在这里,我们设计了螺[茚并[1,2- b ][1]苯并呋喃-10,10'-茚并[1,2- b ][1]苯并噻吩]作为含有呋喃的螺稠合PAC的新家族单元。该化合物以对映体形式成功合成,并转化为其S , S-二氧化物衍生物和含吡咯的类似物通过芳族变态。由于与噻吩相比,呋喃的电子富集度增加,所获得的含呋喃手性螺稠合 PAC 的吸收和发射特性明显不同于已报道的噻吩类似物。发现所有含呋喃的手性螺稠合 PAC 都是圆偏振发光材料。