合成方法:已开发出一种新的,选择性的Pd催化的2-炔基苯甲醛与吲哚的多米诺反应,用于合成5 H-苯并[ b ]咔唑-6-基酮。室温下,吲哚会俘获异苯并吡啶鎓配合物,从而生成3‐(1 H‐异色素n ‐1‐基)‐1 H‐吲哚,可通过提纯将其转变为5 H‐苯并[ b ]咔唑-6‐基酮温度(请参阅方案)。这些酮表现出强烈的荧光并与金属离子相互作用以增强荧光强度。
PdCl2-Catalyzed Domino Reactions of 2-Alkynylbenzaldehydes with Indoles: Synthesis of Fluorescent 5H-Benzo[b]carbazol-6-yl Ketones
作者:Ri-Yuan Tang、Jin-Heng Li
DOI:10.1002/chem.201000133
日期:2010.4.26
selective Pd‐catalyzed dominoreaction of 2‐alkynylbenzaldehydes with indoles has been developed for the synthesis of 5H‐benzo[b]carbazol‐6‐yl ketones. The isobenzopyrylium complex is trapped by indole at room temperature to give 3‐(1H‐isochromen‐1‐yl)‐1H‐indoles, which can be transformed into 5H‐benzo[b]carbazol‐6‐yl ketones by raising the temperature (see scheme). These ketones exhibit intense fluorescence
合成方法:已开发出一种新的,选择性的Pd催化的2-炔基苯甲醛与吲哚的多米诺反应,用于合成5 H-苯并[ b ]咔唑-6-基酮。室温下,吲哚会俘获异苯并吡啶鎓配合物,从而生成3‐(1 H‐异色素n ‐1‐基)‐1 H‐吲哚,可通过提纯将其转变为5 H‐苯并[ b ]咔唑-6‐基酮温度(请参阅方案)。这些酮表现出强烈的荧光并与金属离子相互作用以增强荧光强度。