作者:Tetsuo Okujima、Chie Ando、Saurabh Agrawal、Hiroki Matsumoto、Shigeki Mori、Keishi Ohara、Ichiro Hisaki、Takahiro Nakae、Masayoshi Takase、Hidemitsu Uno、Nagao Kobayashi
DOI:10.1021/jacs.6b04941
日期:2016.6.22
acenaphthylene-fused cyclo[10]pyrrole 1b was selectively synthesized via an oxidative coupling reaction of the corresponding 2,2'-bipyrrole with the appropriate dianion template, croconate anion. The structure of 1b as the isolated largest cyclo[n]pyrrole was elucidated by X-ray crystallographic analysis. The absorption spectrum exhibited a markedly red-shifted, intensified L band at 1982 nm, which was interpreted
通过相应的 2,2'-联吡咯与适当的二价阴离子模板鳄鱼酸阴离子的氧化偶联反应,选择性地合成了苊稠合的环 [10] 吡咯 1b。通过 X 射线晶体学分析阐明了 1b 作为分离的最大环 [n] 吡咯的结构。吸收光谱在 1982 nm 处表现出明显红移、增强的 L 带,这可以通过应用 Michl 周长和 Gouterman 4 轨道模型进行解释,并得到磁圆二色性 (MCD) 数据和理论计算的支持。