Synthesis and application of new type of porphyrins

以芳香族硝基化合物为原料，在碱存在下与异氰乙酸乙酯反应制备了异吲哚。研究了这条路线的范围和局限性。通过碱和溶剂的选择，将各种芳香硝基化合物转化为相应的异吲哚。这样制备的异吲哚转化为相应的卟啉。这类卟啉的电子性质可以通过选择融合的芳香环来很好地控制。红移最多的卟啉是那些与苊环融合的卟啉，分别在600 nm和800 nm处显示为soret带和Q带。作为一种新型卟啉，还制备了多环骨架卟啉和冠醚卟啉。它们可能为传感器或催化剂提供潜在的有用材料。

Isoindoles were prepared by the reaction of aromatic nitro compounds with ethyl isocyanoacetate in the presence of base. The scope and limitation of this route were studied. By the choice of base and solvent all kinds of aromatic nitro compounds were converted into the corresponding isoindoles. Isoindoles thus prepared were converted into the corresponding porphyrins. The electronic properties of such porphyrins are nicely controlled by the choice of fused aromatic rings. The most red-shifted porphyrins are those fused with acenapthyrene rings to show 600 nm and 800 nm as a soret band and Q bands, respectively.As a new type of porphyrins, porphyrins fused with polycyclic skeletons and crown ether were also prepared. They may provide potentially useful materials for a sensor or a catalyst.