137018-26-9

Basic information

• Product Name: 2,2'-((4-chlorophenyl)methylene)bis(1H-pyrrole)
• Synonyms: 2,2'-((4-chlorophenyl)methylene)bis(1H-pyrrole)
• CAS NO: 137018-26-9
• Molecular Weight: 256.735
• Mol File: 137018-26-9.mol
• Article Data: 17

Chemical Properties

• CAS DataBase Reference: 2,2'-((4-chlorophenyl)methylene)bis(1H-pyrrole)(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2'-((4-chlorophenyl)methylene)bis(1H-pyrrole)(137018-26-9)
• EPA Substance Registry System: 2,2'-((4-chlorophenyl)methylene)bis(1H-pyrrole)(137018-26-9)

Safety Data

• Hazardous Substances Data: 137018-26-9(Hazardous Substances Data)

Upstream product

• 109-97-7 pyrrole 
• 104-88-1 4-chlorobenzaldehyde 
• 357417-22-2 N-(4-chlorobenzylidene)-4-methylbenzenesulfonamide 
• 99-91-2 para-chloroacetophenone 
• 7099-88-9 4-chlorophenylglyoxylic acid 

Downstream Products

• 137018-28-1 5,15-diphenyl-10-p-chlorophenyl-2,3,17,18-tetraethylporphine 
• 1341774-21-7 C₁₅H₁₀BClF₂N₂ 
• 1341774-22-8 C₁₆H₁₀BClF₂N₂O 
• 869883-18-1 C₁₅H₁₁ClN₂ 
• 1435347-62-8 C₁₅H₁₃AuCl₃N₂⁽¹⁺⁾*Cl^(1-) 
• 22112-77-2 5,10,15,20-tetra-(4-chlorophenyl)porphyrin 
• 248606-50-0 5,10,15,20-tetrakis(4-chlorophenyl)porphyrinogen 
• 1539327-07-5 C₄₄H₂₄Br₂Cl₂N₄Ni 

Relevant articles and documents

K2S2O8mediated synthesis of 5-Aryldipyrromethanes and meso-substituted A4-Tetraarylporphyrins

The synthesis of dipyrromethanes from pyrrole and arylglyoxylic acids in the presence of K2S2O8at 90 C is reported affording dipyrromethanes in very good yields. Unlike an excess pyrrole traditionally used in dipyrromethane synthesis, the current method uses a stoichiometric amount of pyrrole avoiding any use of Br?nsted or Lewis acid. A gram scale synthesis of 5-phenyldipyrromethane is also achieved demonstrating potential scale up of dipyrromethanes using this method feasible. Subsequently, dipyrromethanes were converted to A4tetraarylporphyrins also in the presence of K2S2O8at 90C. A direct synthesis of A4-tetraphenylporphyrin from excess pyrrole and phenylglyoxylic acid in the presence of K2S2O8 at 90C is also reported.

Synthesis of dipyroromethanes in water and investigation of electronic and steric effects in efficiency of olefin epoxidation by sodium periodate catalyzed by manganese tetraaryl and trans disubstituted porphyrin complexes

Condensation of pyrrole with various aldehydes in the presence of BF3?etherate as an acid catalyst in water provides good yield of some dipyrromethanes. Prolongation of the reaction time with aldehydes substituted by electron-donating (mesityl) or electron-withdrawing (2,6-dichlorophenyl) groups on the ortho positions of the phenyl did not lead to decomposition or scrambling. Manganese trans disubstituted porphyrin complexes which derive from various dipyrromethanes and manganese tetraaryl porphyrin complexes including various substituents with different steric and electronic properties show good catalytic activity in epoxidation of alkenes by NaIO4 in the presence of imidazole (ImH). The study of steric and electronic effects of the catalysts on the epoxidation of olefins shows that Mn-porphyrin complexes with more bulky and electron-releasing groups on meso phenyls could increase the epoxidation yield of most alkenes.

An easily accessible and recyclable copper nanoparticle catalyst for the solvent-free synthesis of dipyrromethanes and aromatic amines

A facile method to prepare a reusable copper nanocatalyst is reported. Transmission electron microscopy shows that the CuNPs are spherical in nature and reside in the nanoscopic template of the capping agent, guar gum. Powder X-ray diffraction studies confirm the crystalline nature of the CuNPs. The catalytic efficiency and recyclability of the synthesized CuNPs were demonstrated through the synthesis of dipyrromethanes (DPMs) and aromatic amines. Various DPMs are obtained in very good yields under solvent-free conditions and nitroarenes are converted to the corresponding amino compounds within 10 min, as evidenced by the kinetic study.