报道了一系列 [5,10,15,20-四(全氟烷基)卟吩基]锌 (II) 配合物及其游离碱类似物的合成、光谱、光物理特性、电化学和 X 射线光电子能谱。标题化合物是通过缩合方法制备的,该方法使用全氟-1-(2'-吡咯基)-1-烷醇前体,并在整个反应过程中连续去除水以产生内消旋全氟化碳取代的卟啉。卟啉悬垂的内消旋全氟烷基的性质对大环的溶解度特性有相当大的影响。[5,10,15,20-四(七氟丙基)卟吩基]锌(II)的单吡啶基加合物的结构具有S4-扭曲的卟啉核;X射线数据如下:P1,a=15.1330(5)A,b=19.2780(6)A,
Substitution of Five-Membered Heteroarenes and Uracils with Trifluoroacetaldehyde Ethyl Hemiacetal
作者:Yuefa Gong、Katsuya Kato、Hiroshi Kimoto
DOI:10.1246/bcsj.73.249
日期:2000.1
A number of α-(trifluoromethyl)heteroarylmethanols 2a—c are conveniently obtained in good yields by substitution of pyrole, furan, and thiophene with trifluoroacetaldehyde ethylhemiacetal (TFAE); 2b and 2c are formed only in the presence of a catalyst such as ZnCl2. Analogous methanols 8a and 8b are also prepared by catalytic substitution of uracils with TFAE in moderate yields.
Abstract The synthesis, characterization and photophysical properties of two perfluoroalkyl (5,10,15,20-tetrakis-[trifluoromethyl]- and [heptafluoropropyl]-porphyrin) and two perfluoroaryl (5,10,15,20-tetrakis-[2,6-difluorophenyl]- and [pentafluorophenyl]-porphyrin) are described, with reference to their potential in both photodynamic therapy (PDT) and in vivo imaging by fluorescence and 19F nuclear
[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
Abstract The article presents data on the development of simple and efficient ways to obtain stable mono-decker complexes of porphyrins with rare-earth elements. Non-metallic porphyrins with halogen atoms as substituents on the periphery of various structures were cleaned and characterized. Further, by reacting the deprotonated forms of the obtained porphyrin-ligands with the acetates of rare-earth
New synthetic route to meso-tetra hydrocarbyl or substituted hydrocarbyl porphyrins and derivatives
申请人:SUN COMPANY, INC. (R&M)
公开号:EP0608085A2
公开(公告)日:1994-07-27
The hydroxyl group in a pyrrolic compound having in the 2-position thereof a group having the formula R(OH)CH- where R is hydrocarbyl or substituted hydrocarbyl, is replaced by a group, for example a p-nitrobenzoate group, having better leaving properties than those of hydroxyl for a subsequent self-condensation and cyclization of the pyrrolic compound to form a meso-hydrocarbyl or meso-substituted hydrocarbyl porphyrin.
吡咯烷酮化合物中的羟基在其 2 位上有一个式 R(OH)CH- 的基团,其中 R 是烃基或取代的烃基,该羟基被一个基团(例如对硝基苯甲酸酯基)取代,该基团比羟基具有更好的离去特性,用于吡咯烷酮化合物随后的自缩合和环化,以形成中烃基或中取代烃基卟啉。