90420-50-1

Basic information

• Product Name: 3,3',5,5'-tetra-tert-butyl-2-<(2,4,8,10-tetra-tert-butyl-12H-dibenzo<1,3,2>dioxaphosphepin-6-yl)oxy>-2'-hydroxy-1,1'-biphenyl
• Synonyms: 3,3',5,5'-tetra-tert-butyl-2-<(2,4,8,10-tetra-tert-butyl-12H-dibenzo<1,3,2>dioxaphosphepin-6-yl)oxy>-2'-hydroxy-1,1'-biphenyl
• CAS NO: 90420-50-1
• Molecular Weight: 849.231
• Mol File: 90420-50-1.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: 3,3',5,5'-tetra-tert-butyl-2-<(2,4,8,10-tetra-tert-butyl-12H-dibenzo<1,3,2>dioxaphosphepin-6-yl)oxy>-2'-hydroxy-1,1'-biphenyl(CAS DataBase Reference)
• NIST Chemistry Reference: 3,3',5,5'-tetra-tert-butyl-2-<(2,4,8,10-tetra-tert-butyl-12H-dibenzo<1,3,2>dioxaphosphepin-6-yl)oxy>-2'-hydroxy-1,1'-biphenyl(90420-50-1)
• EPA Substance Registry System: 3,3',5,5'-tetra-tert-butyl-2-<(2,4,8,10-tetra-tert-butyl-12H-dibenzo<1,3,2>dioxaphosphepin-6-yl)oxy>-2'-hydroxy-1,1'-biphenyl(90420-50-1)

Safety Data

• Hazardous Substances Data: 90420-50-1(Hazardous Substances Data)

Upstream product

• 6390-69-8 3,3',5,5'-tetra(tert-butyl)biphenyl-2,2'-diol 
• 71941-98-5 3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl phosphorochloridite 

Downstream Products

• 154437-34-0 C₅₆H₈₀Cl₂O₄P₂ 

Relevant articles and documents

METHOD FOR PRODUCING ALDEHYDE USING BISPHOSPHITE AND GROUP 8-10 METAL COMPOUND, AND SUCH BISPHOSPHITE

A bisphosphite represented by the general formula (I): (in the formula, A represents an alkylene group which may have a substituent, a cycloalkylene group which may have a substituent, a phenylene group which may have a substituent, or a naphthylene group which may have a substituent; and R1 represents a hydrogen atom or an alkyl group) and a method for producing an aldehyde including reacting a non-conjugated diene having a carbon-carbon double bond in a molecular end and having from 6 to 20 carbon atoms with a carbon monoxide and hydrogen in the presence of such a bisphosphite and a group 8 to 10 metal compound, are provided.

STERICALLY CONGESTED LIGANDS: SYNTHESIS AND SOLUTION CONFORMATION OF BISPHOSPHITE LIGAND PRECURSORS

The synthesis and characterization of precursors to sterically hindered bisphosphite ligands containing the dibenzodioxaphosphepin and dibenzodioxaphosphocin ring system is described.The ΔG(excit.) for ring inversion of the dibenzodioxaphosphepin ring was determined by VT 31P NMR spectroscopy.The 1H NMR spectra of the dibenzodioxaphosphocin ligands were consistent with the eight-membered ring adopting a boat-chair conformation in solution.Key words: Ligand, dibenzodioxaphosphepin ring, dibenzodioxaphosphocin ring, conformational analysis, ΔG(excit.) for ring inversion.