856197-59-6

Basic information

• Product Name: bis(2,4,6-triisopropylphenyl)(4'-bromo-3,3',5'5'-tetramethyl-4-biphenyl)phosphine
• Synonyms: bis(2,4,6-triisopropylphenyl)(4'-bromo-3,3',5'5'-tetramethyl-4-biphenyl)phosphine
• CAS NO: 856197-59-6
• Molecular Weight: 725.876
• Mol File: 856197-59-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: bis(2,4,6-triisopropylphenyl)(4'-bromo-3,3',5'5'-tetramethyl-4-biphenyl)phosphine(CAS DataBase Reference)
• NIST Chemistry Reference: bis(2,4,6-triisopropylphenyl)(4'-bromo-3,3',5'5'-tetramethyl-4-biphenyl)phosphine(856197-59-6)
• EPA Substance Registry System: bis(2,4,6-triisopropylphenyl)(4'-bromo-3,3',5'5'-tetramethyl-4-biphenyl)phosphine(856197-59-6)

Safety Data

• Hazardous Substances Data: 856197-59-6(Hazardous Substances Data)

Upstream product

• 182227-72-1 bis(2,4,6-tri-isopropylphenyl)phosphinous chloride 
• 144653-01-0 4,4'-dibromo-3,3',5,5'-tetramethylbiphenyl 
• 21524-34-5 2,4,6-triisopropyl-1-bromobenzene 
• 689260-53-5 2-bromo-5-iodo-1,3-dimethylbenzene 

Relevant articles and documents

Synthesis of crowded triarylphosphines carrying functional sites

4,4′-Diphosphinobiaryls and 1,3- and 1,4-borylphosphinobenzenes carrying crowded triarylphosphine moieties were synthesized by reaction of the corresponding diarylchlorophosphine with an arylcopper(I) reagent. Intramolecular interaction of the phosphorus redox center with the other phosphorus or the boron redox center was investigated by cyclic voltammetry. 4,4′-Diphosphinobiaryls displayed two-step reversible redox waves with slight differences of the oxidation potentials due to weak interaction between two phosphorus redox centers across 4,4′-biarylene linkage. Borylphosphinobenzenes showed two step redox waves corresponding to oxidation at the phosphorus and reduction at the boron. Although significant interaction between the phosphorus and boron redox centers was not observed in the cyclic voltammograms due to large difference of the redox potentials between phosphorus and boron redox centers, an absorption due to weakly interacting phosphorus and boron was observed in the UV-Vis spectrum of the 1,4-borylphosphinobenzene.