17260-17-2

Upstream product

• 109-97-7 pyrrole 
• 4397-53-9 p-benzyloxybenzaldehyde 
• 100-44-7 benzyl chloride 
• 123-08-0 4-hydroxy-benzaldehyde 
• 100-39-0 benzyl bromide 
• 51094-17-8 5,10,15,20-tetrakis(4'-hydroxyphenyl)porphyrin 

Relevant academic research and scientific papers

Synthesis, electrochemical and complexation studies of Zn(II) aryloxyporphyrins with fullerene C60

A new series of aryloxyporphyrins bearing benzyl and naphthyl substituents viz., ZnTBPP (1), ZnTNPP (2) and ZnONPP (3) has been synthesized and characterized by UV-vis, fluorescence and 1H NMR spectroscopic techniques and mass spectrometry. 1-3

Three including animal pen oxygen radical porphyrin the synthetic method of the compound of

The invention discloses a synthesis method of benzyloxy-containing porphyrin compounds. A propanoic acid-glacial acetic acid-nitrobenzene mixed solvent conventional heating process is utilized to synthesize two novel porphyrin compounds at high yield, namely meso-tetra(3-methoxy-4-benzyloxyphenyl)porphyrin and meso-tetra[4-(4-nitrobenzyloxy)phenyl]porphyrin; and the synthesis of meso-tetra(4-benzyloxyphenyl)porphyrin is improved. The invention also discloses a synthesis technique of benzyloxy-substituted aromatic aldehydes, namely 4-benzyloxybenzaldehyde, 3-methoxy-4-benzyloxybenzaldehyde and 4-(4-nitrobenzyloxy)benzaldehyde; and the synthesis technique is simple to operate, has the advantages of high yield, low cost and high purity, and is suitable for industrial production.

Cyclopropanation reactions catalysed by dendrimers possessing one metalloporphyrin active site at the core: Linear and sigmoidal kinetic behaviour for different dendrimer generations

Experimental and computational studies on dendrimers possessing a Fe(porphyrin) catalytic core and polyether dendritic arms show that these macromolecules promote efficiently the (2+1) cycloaddition between a model alkene and diazomethane. The reaction is

Rothemund and Adler-Longo Reactions Revisited: Synthesis of Tetraphenylporphyrins under Equilibrium Conditions

We present a new synthetic strategy for preparing tetraphenylporphyrins that should greatly expand synthetic entries into porphyrin containing model systems.Pyrrole and the desired benzaldehyde react reversibly at room temperature with trace acid catalysis to form the cyclic tetraphenylporphyrinogen at thermodynamic equilibrium.An oxidant is then added to irreversibly convert the porphyrinogen to the porphyrin.The greater stability of the cyclic porphyrinogen over the open-chain polypyrrylmethanes occurs when the reaction is performed at moderate dilution (10-2 M).The reaction at high dilution or high concentration affords a negligible yield of the cyclic porphyrinogen.Porphyrinogen exchange reactions provide proof of equilibrium.This methodology is complementary to the Adler-Longo procedure, allowing small quantities of porphyrins to be prepared from sensitive aldehydes in 30-40percent yield without difficult purification problems.This methodology is also extended to the preparation of meso-tetraalkylporphyrins and one hybrid porphyrin containing both aryl and alkyl substituents.The mild reaction conditions and convenience of this method permit consideration of new design strategies in preparing complex porphyrins.

Asymmetrical Porphyrins. I. Synthesis, Characterization and Physicochemical Properties of Phenyl/4-Benzyloxyphenyl 5,10,15,20-Substituted Porphyrins

A complete series of five phenyl/4-benzyloxyphenyl 5,10,15,20-substituted porphyrins has been synthesized, characterized by analysis, Rf values, and proton-nmr spectroscopy (pmr).Their physicochemical properties, namely ir spectra, absorption spectra, emission spectra, excited state life-times, pK3 values, reduction potentials, and kinetics of Cu(+2) insertion, have been determined.Attempts have been made to correlate these physicochemical properties with the structure of the porphyrins.

SYNTHESIS OF TETRAPHENYLPORPHYRINS UNDER VERY MILD CONDITIONS

Reaction of pyrrole and an aromatic aldehyde at room temperature affords the corresponding tetraarylporphyrinogen in high yield at thermodynamic equilibrium.Oxidation yields the porphyrin.The reactions conditions are of broad scope.