68772-71-4

Upstream product

• 109-97-7 pyrrole 
• 3132-99-8 m-bromobenzoic aldehyde 
• 63057-26-1 5,10,15,20-mesotetrakis(3-aminophenyl)-21H,23H-porphyrine 

Relevant academic research and scientific papers

A four-phenyl porphine preparation method

The invention discloses a preparation method of meso-tetraphenylchlorin. The preparation method comprises the steps that 1, a mixed solution of pyrrole and aromatic aldehyde is prepared for standby; 2, a solvent is added into a polymerization reactor, nitrogen displacement is conducted till the concentration of tail oxygen is lower than 1%, the solvent is heated to backflow, the mixed solution obtained in the first step starts to be dropwise added, a reaction is started, after the mixed solution is dropwise added completely, the reaction is continuously conducted for 0.05 h to 0.5 h, and then the reaction is stopped; 3, oxygen-containing gas with the oxygen volume fraction ranging from 5% to 100% is fed into the polymerization reactor for oxidation, cooling is conducted after the oxidation is completed, filtration is conducted to obtain a filter cake and filtrate, and a product is obtained after the filter cake is washed and dried. The preparation method of the meso-tetraphenylchlorin has the advantages that the yield is high, safety and environmental protection are achieved, separation and purification are easy, and the product quality is stable.

A four-phenyl porphine production method (by machine translation)

The invention discloses a production method for tetraphenyl porphin. The production method includes the steps that 1, pyrrole and aromatic aldehyde are prepared into a mixed solution for standby application; 2, solvent is added into a polymerization reactor, the pressure of the polymerization reactor is maintained at 1-5 atm, the mixed solution obtained in the step 1 starts to be dripped to start a polymerization reaction, after the reaction is finished, reaction products are cooled to normal temperature, and filter liquor and a filter cake are obtained through filtration; 3, the filter cake obtained in the step 2 and propionic acid are added into an oxidation reactor, oxygen-containing gas is introduced to carry out an oxidation reaction, cooling is carried out after oxidation is finished, a solid and filter liquor are obtained through filtration, and the solid is washed and dried to obtain the tetraphenyl porphin. The production method has the advantages of being high in yield, safe and environmentally friendly, separation and purification are easy, and the production quality is stable.

Porphyrin-containing organic semiconductor material applied to photoelectric device and preparation method thereof

The invention discloses a porphyrin-containing organic semiconductor material applied to a photoelectric device and a preparation method thereof. The orphyrin-containing organic semiconductor materialis prepared by the following steps: reacting bromoaroma

Synthetic method of porphyrin and porphyrin derivative

The invention discloses a synthetic method of porphyrin and a porphyrin derivative. According to the method, a reaction separation synchronous reactor is used to prepare porphyrin and the porphyrin derivative. The reaction separation synchronous reactor includes a stirring reaction tower and a constant-temperature settlement tower connected to the bottom of the stirring reaction tower. The method comprises: adding a mixed raw material of pyrrole, a benzaldehydes compound, organic carboxylic acid and DMF in the reaction separation synchronous reactor till the reaction zone of the constant-temperature settlement tower and the stirring reaction tower is filled with the mixed raw material, controlling the temperature in the stirring reaction tower in a range of 130-155 DEG C and controlling the temperature of the constant-temperature settlement tower in a range of 50-80 DEG C, and obtaining the porphyrin or porphyrin derivative precipitation from the constant-temperature settlement tower. According to the method, no complicated separation means is adopted, and high-purity porphyrin is obtained at a high yield. The method allows industrial production to be easily achieved.

Synergistic Effect of Tetraaryl Porphyrins Containing Corannulene and Other Polycyclic Aromatic Fragments as Hosts for Fullerenes. Impact of C60 in a Statistically Distributed Mixture of Atropisomers

Symmetric meso-tetraarylporphyrins bearing phenanthrene, pyrene, and corannulene moieties in meta positions have been synthesized in a straightforward procedure under microwave irradiation by quadruple Suzuki-Miyaura reactions. Their 1H NMR spectra showed the typical pattern of four atropisomers distributed according to their statistical ratio not properly separable due to their fast isomerization. Their ability to bind buckminsterfullerene has been tested with the whole mixture, and different behaviors have been found, α4 isomer corannulene-substituted porphyrins being the best hosts in the family.

Dissection of complex molecular recognition interfaces

The synthesis of a family of zinc porphyrins and pyridine ligands equipped with peripheral H-bonding functionality has provided access to a wide range of closely related supramolecular complexes featuring between zero and four intramolecular H-bonds. An automated UV/vis titration system was used to characterize 120 different complexes, and these data were used to construct a large of number of different chemical double mutant cycles to quantify the intramolecular H-bonding interactions. The results probe the quantitative structure-activity relationship that governs cooperativity in the assembly of complex molecular recognition interfaces. Specifically, variations in the chemical structures of the complexes have allowed us to change the supramolecular architecture, conformational flexibility, geometric complementarity, the number and nature of the H-bond interactions, and the overall stability of the complex. The free energy contributions from individual H-bonds are additive, and there is remarkably little variation with architecture in the effective molarity for the formation of intramolecular interactions. Intramolecular H-bonds are not observed in complexes where they are geometrically impossible, but there are no cases where excellent geometric complementarity leads to very high affinities. Similarly, changes in conformational flexibility seem to have limited impact on the values of effective molarity (EM). The major variation that was found for all of the 48 intramolecular interactions that were examined using double mutant cycles is that the values of EM for intramolecular carboxylate ester-phenol H-bonds (200 mM) are an order of magnitude larger than those found for phosphonate diester-phenol H-bonds (30 mM). The corresponding intermolecular phosphonate diester-phenol H-bonds are 2 orders of magnitude more stable than carboxylate ester-phenol H-bonds, and the large differences in EM may be due to some kind of compensation effect, where the stronger H-bond is harder to make, because it imposes tighter constraints on the geometry of the complex.

SYNTHESIS OF TETRAPHENYLPORPHINS WITH REACTIVE GROUPS IN THE BENZENE RINGS. 3. USE OF DIAZOTATION FOR THE PREPARATION OF SUBSTITUTED TETRAPHENYLPORPHINS

Diazotization of tetra(aminophenyl)porphins has been employed to obtain halo- and hydroxy-tetraphenylporphins.Azo-coupling of tetra(diazophenyl)porphins has given isomeric tetraporphins.

IMROVED METHOD FOR SYNTHESIS OF SUBSTUTUTED TETRAPHENYLPORPHINS

Condensation of pyrrole with benzaldehydes in a mixture of xylene and chloroacetic acid gives a series of substituted tetraphenylporphins with yields exeeding the yields of porphyrins synthetized according to known preparative methods.