71941-98-5

Basic information

• Product Name: 3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl phosphorochloridite
• Synonyms: 3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl phosphorochloridite
• CAS NO: 71941-98-5
• Molecular Weight: 475.051
• Mol File: 71941-98-5.mol
• Article Data: 22

Chemical Properties

• CAS DataBase Reference: 3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl phosphorochloridite(CAS DataBase Reference)
• NIST Chemistry Reference: 3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl phosphorochloridite(71941-98-5)
• EPA Substance Registry System: 3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl phosphorochloridite(71941-98-5)

Safety Data

• Hazardous Substances Data: 71941-98-5(Hazardous Substances Data)

Upstream product

• 6390-69-8 3,3',5,5'-tetra(tert-butyl)biphenyl-2,2'-diol 
• 7719-12-2 phosphorus trichloride 

Downstream Products

• 1225431-70-8 C₄₀H₅₄NO₄P 
• 80410-33-9 2-[[2,4,8,10-tetrakis(1,1-dimethylethyl)dibenzo[d,f][1,3,2]dioxaphosphepin-6-yl]oxy]-N,N-bis[2-[[2,4,8,10-tetrakis(1,1dimethylethyl)dibenzo[d,f][1,3,2]dioxaphosphepin-6-yl]oxy]-ethyl]ethanamine 

Relevant articles and documents

Facile phosphite to phosphonate rearrangement of a trialkanolamine-derived triphosphite promoted by triethylaluminum

A facile room temperature rearrangement of a trialkanolamine-derived triphosphite, 1, to the monophosphonate 5 promoted by three equivalents of triethylaluminum is described. The diphosphonate 6 was prepared by the addition of three equivalents of triethylaluminum to the monophosphonate 5. A mechanism is suggested involving a transition state or intermediate with coordination of the trialkylaluminum to the migrating oxygen. Copyright Taylor & Francis Group, LLC.

P-chirogenic diphosphazanes with axially chiral substituents and their use in rh-catalyzed asymmetric hydrogenation

A convenient synthesis of enantiopure P-chirogenic diphosphazanes incorporating bulky bisphenol and 1,1′-bi-2-naphtholderived substituents via the functionalization of a readily accessible enantiopure lithium phosphinoamide with chlorophosphoridites was developed. Since the product requires no subsequent deprotection, the protocol provides an easy, convenient synthesis of P-chirogenic ligands on the gram scale. The ligands were applied in the Rh-catalyzed asymmetric hydrogenation of benchmark substrates furnishing enantiomeric excess values up to 96%.

NOVEL MONOPHOSPHITE COMPOUNDS HAVING AN ETHER GROUP

Novel monophosphite compounds having an ether group, and a process for preparing these compounds, which are especially suitable for use as ligands in hydroformylation reactions.

Rhodium-catalyzed nonisomerizing hydroformylation of methyl oleate applying lactame-based phosphoramidite ligands

The rhodium-catalyzed hydroformylation of methyl oleate (MO) with new monodentate phosphoramidite ligands 1a-d is investigated here. The ligands are characterized by lactam rings of different size (four-to seven-membered rings). In mild conditions (synthesis gas pressure: 30 bar, 80°C), the rhodium catalysts based on the P-azetidinone phosphoramidite 1a gave within 6 h complete conversion and produced mainly methyl 9-and 10-formylstearate (MFS) with 99% chemoselectivity. In the hydrolysis test, phosphoramidite 1a was also the most stable. This was additionally confirmed by density functional theory calculations.