Electrophilic Nitration of meso-Tetraarylporphyrin Complexes at the β-Pyrrolic Position.

Conformational Effects on the Redox Pote

Conformational Effects on the Redox Potentials of Tetraarylporphyrins Halogenated at the β-Pyrrole Positions

✍ Philippe Ochsenbein; Khadija Ayougou; Dr. Dominique Mandon; Prof. Dr. Jean Fisch 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 411 KB 👁 1 views

Selective Double Functionalization of me

Selective Double Functionalization of meso-Tetraphenylporphyrin Complexes on the Same Pyrrole Unit by Tandem Electrophilic/Nucleophilic Aromatic Substitution

✍ Stanisław Ostrowski; Anna M. Raczko 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 German ⚖ 191 KB

## Abstract The mono‐nitrated __meso__‐tetraphenylporphyrin (TPP) complex **2** could be readily functionalized on the substituted pyrrole ring with yields of up to 83%. These transformations were achieved __via__ aromatic substitution with carbanions generated from diverse functionalized compounds

Synthesis, Electronic Characterisation a

Synthesis, Electronic Characterisation and Significant Second-Order Non-Linear Optical Responses of meso-Tetraphenylporphyrins and Their ZnII Complexes Carrying a Push or Pull Group in the β Pyrrolic Position

✍ Elisabetta Annoni; Maddalena Pizzotti; Renato Ugo; Silvio Quici; Tamara Morotti; 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 42 KB 👁 1 views

On page 3860 of the original article [1] we reported: "The preparation of the phosphonium salt 16 was carried out, starting from the aldehyde 13, according to the synthetic scheme reported in a preliminary communication by Bonfantini and Officer in 1993. [24] However the detailed experimental proce

Synthesis, Electronic Characterisation a

Synthesis, Electronic Characterisation and Significant Second-Order Non-Linear Optical Responses of meso-Tetraphenylporphyrins and Their ZnII Complexes Carrying a Push or Pull Group in the β Pyrrolic Position

✍ Elisabetta Annoni; Maddalena Pizzotti; Renato Ugo; Silvio Quici; Tamara Morotti; 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 285 KB 👁 1 views

## Abstract This work describes the synthesis and characterisation by electronic absorption spectroscopy, cyclic voltammetry and by a solvatochromic investigation of __meso__‐tetraphenylporphyrins and their Zn^II^ complexes substituted at the β pyrrolic position by a pseudo‐linear, π‐delocalised or

EPR, ENDOR, and DFT Studies on (β-Octaha

EPR, ENDOR, and DFT Studies on (β-Octahalo-meso-tetraarylporphyrin)copper Complexes: Characterization of the Metal(d)−Porphyrin(a2u) Orbital Interaction

✍ Junlong Shao; Erik Steene; Brian M. Hoffman; Abhik Ghosh 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 219 KB

## Abstract A series of planar (porphyrin)copper(II) complexes and their β‐octahalogenated saddled derivatives have been studied by Electron Paramagnetic Resonance (EPR) spectroscopy, Electron Nuclear DOuble Resonance (ENDOR) spectroscopy, and Density Functional Theoretical (DFT) calculations. Both

Direct Amination of meso-Tetraarylporphy

Direct Amination of meso-Tetraarylporphyrin Derivatives – Easy Route to A3B-, A2BC-, and A2B2-Type Porphyrins Bearing Two Nitrogen-Containing Substituents at the meso-Positioned Phenyl Groups

✍ Stanisław Ostrowski; Sebastian Grzyb; Agnieszka Mikus 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 German ⚖ 307 KB

## Abstract __meso__‐Tetraarylporphyrinato complexes **1a**–**g** (Zn^II^, Cu^II^, and Ni^II^) bearing one or two nitro‐substituted aryl moieties react with 1,1,1‐trimethylhydrazinium iodide in the presence of ^__t__^BuOK in THF at 0–5° or in the presence of KOH in DMSO at 60–70° according to a nuc

Electrophilic Nitration of meso-Tetraarylporphyrin Complexes at the β-Pyrrolic Position.

✦ Synopsis

Abstract