Synthetic, Structural, and Photophysical Exploration of<i>meso</i>-Pyrimidinyl-Substituted AB<sub>2</sub>-Corroles
作者:Thien H. Ngo、Fausto Puntoriero、Francesco Nastasi、Koen Robeyns、Luc Van Meervelt、Sebastiano Campagna、Wim Dehaen、Wouter Maes
DOI:10.1002/chem.201000008
日期:2010.5.17
distances and a saddled corrole plane. The absorption spectra and photophysical properties of some representative free‐base AB2‐pyrimidinylcorroles were examined in depth. The absorption spectra displayed typical corrole features: intense spin‐allowed π–π* bands, which can be classified as Soret‐ and Q‐type bands. The photophysical properties, investigated both in fluid solution at room temperature
从5-间苯二甲酰氯甲烷和各种2-取代的4,6-二氯嘧啶-5-甲醛开始,有效合成了内消旋-嘧啶基取代的AB 2-苯酚。所述corrole产量通过路易斯酸催化剂(BF的量的优化显著增强3 ⋅ OET 2)。嘧啶基Corroles相对于其他内消旋体的主要优势三芳基cor杂醇是它们广泛的功能化可能性,已通过亲核和亲电芳族取代以及Pd催化的交叉偶联反应进行了探索。氯官能团的逐步取代得到不对称取代的嘧啶基Corroles。由于游离碱腐蚀物大环化合物的不稳定性,腐蚀物外围的功能化优先在金属铜化的对应物上进行。但是,通过可逆的序列Cu插入和随后的还原性脱金属操作,可以轻松获得功能化的游离碱AB 2-嘧啶基硬脂醇。因此,AB 2-嘧啶基Corroles被认为是通向更复杂的Corrole系统的高度通用的平台。双(4叔)的X射线分析-2-丁基苯氧基)取代的铜-嘧啶基corrole表现出了铜-corrole的典型