作者:Soji Shimizu、Naoki Aratani、Atsuhiro Osuka
DOI:10.1002/chem.200600158
日期:2006.6.14
[24]pentaphyrin 3, [28]hexaphyrin 4, [32]heptaphyrin 5, [46]decaphyrin 6, and [56]dodecaphyrin 7, were synthesized by means of an acid-catalyzed one-pot condensation reaction of 2-(2,2,2-trifluoro-1-hydroxyethyl)pyrrole (1) as the first examples bearing meso-alkyl substituents. Besides these products, porphyrin 2 and two calix[5]phyrins 8 and 9 were also obtained. [28]Hexaphyrin 4 was quantitatively
通过以下方法合成了一系列介孔三氟甲基取代的膨胀卟啉,包括N-稠合的[24]五卟啉3,[28]六卟啉4,[32]庚卟啉5,[46]十卟啉6和[56]十二烷基卟啉7。作为带有介烷基取代基的第一个实例的2-(2,2,2-三氟-1-羟乙基)吡咯(1)的酸催化单锅缩合反应的概述。除这些产品外,还获得了卟啉2和两个杯[5]卟啉8和9。[28]六卟啉4被MnO(2)定量氧化为[26]六卟啉14。这些膨胀的卟啉已经通过质谱,(1)H和(19)F NMR光谱以及UV / Vis光谱进行了表征。已经确定了3、4、6、7和14的单晶结构。N-稠合的[24]五卟啉3显示出扭曲的结构,该结构包含类似于中-芳基取代的对应物的三环稠合部分,而8和9则显示为大致平面构型,而反向吡咯与sp相反(3)-杂化的中碳原子。[28]-和[26]六卟啉4和14均具有八字形结构。十卟啉6和十二卟啉7的固态结构是显着的,分别表现出月牙形构象和分子内两螺距螺旋构象。