34549-87-6Relevant articles and documents
A cyclic porphyrin trimer as a receptor for fullerenes
Gil-Ramirez, Guzman,Karlen, Steven D.,Shundo, Atsuomi,Porfyrakis, Kyriakos,Ito, Yasuhiro,Briggs, G. Andrew D.,Morton, John J. L.,Anderson, Harry L.
supporting information; experimental part, p. 3544 - 3547 (2010/10/02)
(Equation Presented). A cyclic porphyrin trimer has been synthesized which has a high affinity for fullerenes. It forms 1:1 complexes with C60 and C70 with association constants of 2×106 and 2×108 M-1, respectively, in toluene. Its affinities for C86 and La@C82 are too strong to measure by fluorescence titration. The solvent dependence of the association constants shows that solvation of both the guest and the host influence the binding strength.
Forecasting columnar mesophases. Synthesis and structure of porphin derivatives
Akopova,Zdanovich,Akopov,Aleksandrov,Pashkova
, p. 43 - 50 (2007/10/03)
This paper examines the possibility of columnar mesophase (CM) predictions in a new series of porphin derivatives: polysubstituted phthalocyanines (I) and porphyrins (II, III). In order to reveal discogens, we have calculated the molecular parameters K, Kc, Ks, Kp, Mm, and Mr for 85 molecules, including compounds with few peripheral substituents. Introduction of a new electronic parameter, Ke, defining the electron density distribution from the center to the periphery of the discogen molecule, is discussed. Some of the compounds were synthesized, and their mesomorphism and structure were investigated in order to be able to verify the conclusions concerning CM prediction in the series of compounds under analysis.
Regioselective pyrrole synthesis from asymmetric β-diketone and conversion to sterically hindered porphyrin
Fujii, Hiroshi,Yoshimura, Tetsuhiko,Kamada, Hitoshi
, p. 1427 - 1430 (2007/10/03)
The condensation of asymmetric β-diketones with α-oximinoacetoacetate esters affords pyrroles regioselectively. The mechanism of the regioselectivity is studied using 13C-NMR spectroscopy. Pyrrole having a neopentyl group at the 4-position is synthesized by the method, and further converted to a steric hindered porphyrin in good yield.
