Synthesis and property of new functionalized porphyrins

本文研究了以硝基烯烃为原料合成吡咯和卟啉的一般方法，得到了以下结果。（1）十二噻吩基卟啉（DTP）的合成：这种卟啉显示出几种不寻常的性质;它比通常的四芳基卟啉更容易氧化并且在较低能量下吸收光。FE-DTP是烯烃环氧化反应的高效催化剂。（2）含给体和受体的卟啉的合成：含茴香基和硝基的卟啉有聚集的倾向（S），例如，这类卟啉的ESR谱显示出强的三重态，表明卟啉的聚集。Cu-Cu的距离估计为4A。（3）制备了四个糖基取代的卟啉类化合物，它们易溶于水，具有良好的光敏活性。（4）酯基、氰基、硝基卟啉的合成。合成了一种新的含吸电子基团的卟啉。从而为调控卟啉化合物的性质开辟了新的途径。

General synthesis of pyrroles and porphyrins starting from nitroalkenes has been studied and the following results have been obtained.(1)Synthesis of dodecathienylporphyrins(DTP) ; This porphyrins show several unusual properties ; it is more easily oxidized and absorbs light at lower energies than the usual tetraarylporphyrins. FE-DTP is an efficient catalyst for epoxidation of alkenes. (2)Synthesis of Porphyrins with donor and acceptor : Porphyrins with anisyl and nitro grouptend to aggragation(S, for example, the ESR spectra of such porphyrins show the strong triplet which indicate the aggregation of porphyrins. The distance of Cu-Cu is estimated to be 4A. (3)Porphyrins substituted with four sugar moieties are prepared, which are freely soluble in water and show the efficient photosensitizing activity. (4)Preparation of porphyrins with ester, cyano, nitro. A new porphyrin with electron withdrawing groups has been prepared. Thus, we could develop the new way to control the property of porphyrins.