POLYCYCLIC FUSED RING TYPE PI-CONJUGATED ORGANIC MATERIALS, INTERMEDIATE THEREFOR, PROCESS FOR PRODUCING POLYCYCLIC FUSED RING TYPE PI-CONJUGATED ORGANIC MATERIALS, AND PROCESS FOR PRODUCING INTERMEDIATE FOR POLYCYCLIC FUSED RING TYPE PI-CONJUGATED ORGANIC MATERIALS
[reaction: see text] The reaction of (o-silylphenyl)acetylene derivatives with lithium naphthalenide undergoes intramolecular reductivecyclization to produce various silaindene derivatives. On the basis of this methodology, a series of silaindene-containing pi-electron systems are synthesized that show intense blue to greenish-blue fluorescence.
synthetic method for ladder oligo(p-phenylenevinylene)s (LOPVs) and related pi-electron systems, having annelated pi-conjugated structures with silicon and carbon bridges, has been developed on the basis of the combination of two cyclization reactions, i.e. the intramolecular reductive cyclization of (o-silylphenyl)acetylene derivatives and the Friedel-Crafts-type cyclization. This methodology allows
基于两种环化反应的组合,开发了一种通用的通用合成方法,用于梯形低聚(对亚苯基亚乙烯基)(LOPV)和相关的 pi 电子系统,具有带硅和碳桥的退火 pi 共轭结构,即(邻甲硅烷基苯基)乙炔衍生物的分子内还原环化和 Friedel-Crafts 型环化。这种方法使我们能够合成一个同源系列的梯形分子,直到一个 13 环融合系统。最长的 13 环稠合 LOPV 的晶体结构分析证明其几乎平坦的 pi 共轭框架长度约为 2.9 纳米。所有产生的梯形 pi 电子系统在可见光区都显示出强烈的荧光,具有高量子产率以及相对较小的斯托克斯位移。
POLYCYCLIC FUSED RING TYPE PI-CONJUGATED ORGANIC MATERIALS, INTERMEDIATE THEREFOR, PROCESS FOR PRODUCING POLYCYCLIC FUSED RING TYPE PI-CONJUGATED ORGANIC MATERIALS, AND PROCESS FOR PRODUCING INTERMEDIATE FOR POLYCYCLIC FUSED RING TYPE PI-CONJUGATED ORGANIC MATERIALS
申请人:Japan Science and Technology Agency
公开号:EP1700860B1
公开(公告)日:2011-07-27
Synthesis, structures, and photophysical properties of silicon and carbon-bridged ladder oligo(p-phenylenevinylene)s and related π-electron systems
partially or fully fused ladder oligo(p-phenylenevinylene)s (LOPVs) and related π-electron systems has been synthesized. Thus, the intramolecular reductive cyclization of o-silyl-substituted bis(phenylethynyl)benzenes with lithium naphthalenide produces partially silicon-bridged bis(styryl)benzenes consisting of silaindene or disilaindacene skeletons. By combining this cyclization with the Friedel–Crafts type