Metalation of meso-hexakis(pentafluorophenyl)-substituted [26]hexaphyrin(1.1.1.1.1.1) (1) has been explored with group 12 metal ions Zn(II), Cd(II), and Hg(II). Zn(II) and Cd(II) ions afforded dinuclear gable-shaped complexes 2 and 3 in good yields, while Hg(II) ion provided bis-Hg(II) and mono-Hg(II) planar complexes (4 and 5) via C-H bond cleavage.
Comparative Photophysics of [26]- and [28]Hexaphyrins(1.1.1.1.1.1): Large Two-Photon Absorption Cross Section of Aromatic [26]Hexaphyrins(1.1.1.1.1.1)
作者:Tae Kyu Ahn、Jung Ho Kwon、Deok Yun Kim、Dae Won Cho、Dae Hong Jeong、Seong Keun Kim、Masaaki Suzuki、Soji Shimizu、Atsuhiro Osuka、Dongho Kim
DOI:10.1021/ja050895l
日期:2005.9.1
than those of [26]hexaphyrin, which is largely in accordance with the perturbation of aromaticity due to the pi electron formulation of [4n] in [28]hexaphyrins. The two-photon absorption cross-section values at 1200 nm for [26]hexaphyrins show ca. 9890 GM which is >10(2) larger than those of porphyrins. The reduced TPA values of 2600 and 810 GM of [28]hexaphyrin and perfluorinated [28]hexaphyrin, respectively
Nucleophilic Thioglycosylation of Pentafluorophenyl-Substituted Porphyrinoids: Synthesis of Glycosylated Calix[<i>n</i>]phyrin and [28]Hexaphyrin Systems
作者:René Klingenburg、Christian B. W. Stark、Arno Wiehe
DOI:10.1021/acs.orglett.9b01542
日期:2019.7.19
The use of carbohydrate thiolates for facile, high-yielding, regio- and stereoselective nucleophilicsubstitutionreactions of complex pentafluorophenyl-substituted porphyrinoids is reported. The title reaction has successfully been applied to calix[4]phyrin, calix[6]phyrin, and [28]hexaphyrin substrates. The novel glycoporphyrinoid products with their extraordinary structures and unique photophysical
Sulfonated graphenes catalyzed synthesis of expanded porphyrins and their supramolecular interactions with pristine graphene
作者:SWETA MISHRA、SMRITI ARORA、RITIKA NAGPAL、SHIVE MURAT SINGH CHAUHAN
DOI:10.1007/s12039-014-0731-8
日期:2014.11
A newersynthesis of sulfonic acid functionalized graphenes have been developed, which have been characterized, examined as heterogeneous solid acid carbocatalyst in the synthesis of selected expanded porphyrins in different reaction conditions. This environment-friendly catalyst avoids the use of toxic catalysts and enhances the yields of porphyrinoids. The non-covalent interaction of porphyrinoids
A new reagent for the synthesis of [26]hexaphyrin: N-sulfonyl aldimine
作者:Seda Cinar、Baris Temelli、Canan Unaleroglu
DOI:10.1016/j.tetlet.2013.11.101
日期:2014.1
The selectivesynthesis of [26]hexaphyrin(1.1.1.1.1.1) has been achieved by the reaction of meso-substituted tripyrrane and N-sulfonyl aldimine. The protocol is simple and requires only a catalytic amount of copper(II) triflate under mild reaction conditions.