Synthesis and characterization of the new 22-π aromatic furan-containing macrocycle, “ozaphyrin”
作者:Douglas C. Miller、Martin R. Johnson、John J. Becker、James A. Ibers
DOI:10.1002/jhet.5570300604
日期:1993.12
The new 22-π, aromatic “pentaplanar” macrocycle, ozaphyrin (6), has been synthesized by a McMurry coupling of 5,5′-diformyl-4,4′-dipropyl-2,2′-bipyrrole (1) with 2,5-bis(5-formyl-4-propyl-2-pyrrolyl)furan (5). This synthetic pathway to ozaphyrin and its characterization by 1H nmr spectroscopy, uv-visible spectroscopy, cyclic voltammetry, and X-ray crystallography are described. The structure consists
新的22-π芳香族“五平面”大环杂卟啉(6)是通过5,5'-二甲酰基-4,4'-二丙基-2,2'-联吡咯(1)与2的McMurry偶联合成的,5-双(5-甲酰基-4-丙基-2-吡咯基)呋喃(5)。描述了该合成的奥扎弗林途径及其通过1 H nmr光谱,紫外-可见光谱,循环伏安法和X射线晶体学表征。该结构由垂直于α轴堆叠的平面交错大环层组成。za杂卟啉在单斜空间群C 5 2h -P2 1 / n中具有四个分子式在尺寸为a = 10.481(7)Å,b = 17.353(17)Å,c = 18.726(12)Å和β= 102.84(5)°(108 K)的像元中。在F 2(5171唯一反射,411个变量)上将结构细化为R w(F o 2)= 0.165。对于3289次反射,当F o 2 > 2 o(F o 2)时,常规一致性指数R(F)为0.074 。