131507-72-7Relevant academic research and scientific papers
The synthesis and solution conformation of dodecaphenylporphyrin
Medforth, Craig J.,Smith, Jevin J.
, p. 5583 - 5586 (1990)
The synthesis of 2,3 ,5 ,7 ,8 ,10 ,12 ,13 ,15 ,17, 18,20-dodecaphenylporphyrin (DPP ; 3) is reported; compared with similar porphyrins it shows a red. shifted electronic absorption spectrum, indicating a non-planar conformation in solution. Variable temperature 500 MHz NMR experiments give a ΔG* of 10.9 kcal mol-1 at 253 K for inversion of the macrocycle.
Synthesis and Nonplanar Macrocyclic Characters of Hexa-, Octa-, and Decaphenylporphyrins
Takeda, Jun,Sato, Mitsuo
, p. 3565 - 3568 (1994)
Porphyrins bearing six, eight, and ten phenyl groups are synthesized using mixed condensation of benzaldehyde with pyrrole and diphenylpyrrole and their nonplanar macrocyclic characters are demonstrated by UV-visible and NMR spetroscopy.
Effect of ligand nonplanarity and solvent nature on the kinetic stability of zinc porphyrin complexes
Berezin,Shukhto,Shatunov
, p. 997 - 1004 (2008)
Planarity disturbance in metal porphyrin macrorings produces destabilization of complexes in dimethyl sulfoxide-acetic acid and benzene-acetic acid systems, except for cases where the coordination center is additionally stabilized by endocyclic substituents and/or extra ligands. The first dissociation stage of complexes with N-substituted analogs of porphyrins involves substitution of the acido ligand in the strongly shielded coordination sphere by an electron-donor solvent molecule. The revealed dependences of dissociation rate constants on acid concentration in DMSO, untypical of most metal porphyrins, are explained by a change in the type of the attacking species with changing solvent composition. The dissociation rate constants of complexes in an electron donor solvent can be lower by several orders of magnitude than in a weakly solvating medium.
Synthesis of Sterically Overcrowded Deca- and Undecaphenylporphyrins via Mixed Condensation of 3,4-Diphenylpyrrole with Benzaldehyde and Formaldehyde
Takeda, Jun,Sato, Mitsuo
, p. 2233 - 2236 (1994)
Sterically overcrowded unsymmetrical porphyrins bearing ten and eleven phenyl groups are synthesized using mixed condensation of diphenylpyrrole with benzaldehyde and formaldehyde and characterized by FAB-MS, UV-VIS, and NMR spectra.
Novel dodecaarylporphyrins: Synthesis and dynamic properties
Muzzi, Cinzia M.,Medforth, Craig J.,Voss, Lisa,Cancilla, Mark,Lebrilla, Carlito,Ma, Jian-Guo,Shelnutt, John A.,Smith, Kevin M.
, p. 6159 - 6162 (1999)
An investigation of the synthesis of dodecaarylporphyrins using the Suzuki coupling reaction of arylboronic acids with octabromotetraarylporphyrins is reported. Variable temperature 1H NMR studies of these new porphyrins reveal several dynamic processes including the first examples of β-aryl rotation.
Stable Dodecaphenylporphyrin-Lithium Complexes and their Exchange Reactions
Tsuchiya, Shinji
, p. 1475 - 1477 (1992)
Stable dodecaphenylporphyrin-lithium complexes are formed at room temperature and the lithium ions of these complexes are replaced easily by other metal ions or organic cations; these lithium complexes can be used as the reagents in the syntheses of various complexes.
Synthesis of beta-aryl substituted porphyrins by palladium catalyzed Suzuki cross-coupling reactions
Chan, Kin Shing,Zhou, Xiang,Au, Ming Tak,Tam, Chak Yue
, p. 3129 - 3136 (1995)
β-Bromoporphyrins undergo Suzuki cross coupling reactions with aryl boronic to give β-arylporphyrins in high yields.
Sterically hindered dodecaarylporphyrins: High-yield synthesis via Adler-Longo and Lindsey reactions
Takeda,Sato
, p. 1005 - 1007 (1994)
Dodecaarylporphyrins bearing ortho disubstituted phenyl groups at the meso positions are synthesized in satisfatory yield. These sterically hindered porphyrins are characterized by UV-visible and 1H NMR spectra.
Kinetics of Complex Formation of Sterically Distorted Porphyrins with Copper Acetate in Pyridine and Dimethylformamide
Dudkina,Shatunov,Kuvshinova,Pukhovskaya,Semeikin,Golubchikov
, p. 1955 - 1960 (2007/10/03)
The kinetics of complex formation of octaethylporphine, 5-monophenyloctaethylporphyrin, 5,15-diphenyloctaethylporphyrin, 5,10,15,20-tetraphenyloctaethylporphyrin, and dodecaphenylporphyrin with copper acetate in pyridine and dimethylformamide was studied.
Saddle-shaped dioxo-ruthenium(VI) and -osmium(VI) 2,3,5,7,8,10,12,13,15,17,18,20-dodecaphenylporphyrin (H2dpp) complexes. Synthesis, spectral characterisation and alkene oxidation by [RuVI(dpp)O2]
Liu, Chun-Jing,Yu, Wing-Yiu,Peng, Shie-Ming,Mak, Thomas C. W.,Che, Chi-Ming
, p. 1805 - 1812 (2007/10/03)
An improved procedure for the preparation of the saddle-distorted porphyrin 2,3,5,7,8,10,12,13,15,17,18,20-dodecaphenylporphyrin (H2dpp) (yield = 75%) based on the Suzuki cross-coupling reaction between phenylboronic acid PhB(OH)2 an
