A series of BODIPY bridged push–pull chromophores were prepared by a sequence of reactions involving: i) cross-coupling reactions promoted by palladium complexes; ii) Knoevenagel condensation leading to dicyano derivatives; iii) [2+2] cycloaddition. The last reaction is regioselective, providing mono-derivatives with anisole substituents. With dimethylaminophenyl donor groups, double addition is feasible
通过一系列反应制备一系列BODIPY桥接的推挽生色团:i)
钯配合物促进的交叉偶联反应;ii)Knoevenagel缩合生成二
氰基衍
生物;iii)[2 + 2]环加成。最后一个反应是区域选择性的,提供具有
苯甲醚取代基的单衍
生物。具有二甲基
氨基苯基供体基团,双加成是可行的,从而提供显示出显着电
化学性能的高度着色的
染料。