597578-44-4

Basic information

• Product Name: Phosphine oxide, [1,1'-binaphthalene]-2,2'-diylbis[phenyl[2-(trimethylsilyl)phenyl]-
• CAS NO: 597578-44-4
• Molecular Formula: C50H48O2P2Si2
• Molecular Weight: 799.048
• Mol File: 597578-44-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Phosphine oxide, [1,1'-binaphthalene]-2,2'-diylbis[phenyl[2-(trimethylsilyl)phenyl]-(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphine oxide, [1,1'-binaphthalene]-2,2'-diylbis[phenyl[2-(trimethylsilyl)phenyl]-(597578-44-4)
• EPA Substance Registry System: Phosphine oxide, [1,1'-binaphthalene]-2,2'-diylbis[phenyl[2-(trimethylsilyl)phenyl]-(597578-44-4)

Safety Data

• Hazardous Substances Data: 597578-44-4(Hazardous Substances Data)

Upstream product

• 75-77-4 chloro-trimethyl-silane 
• 130164-89-5 2,2’-bis(diphenylphosphinooxide)-1,1’-binaphthalene 

Relevant articles and documents

Metallation reactions on 2,2′-bis(diphenylphosphinoyl)-1,1′-binaphthyl [BINAP(O)2]

The behavior of BINAP(O)2 upon treatment with lithium or magnesium amides under various conditions has been studied. With 2,2,6,6-tetramethylpiperidinomagnesium bromide, the ortho positions of opposed phenyl rings were selectively metallated, forming stable intermediates, while the use of lithium amides caused rearrangements with displacement of one diphenylphosphinoyl group and the formation of strained P-heterocycles (2, 5, 6) with unusual architectures. Monophosphine oxides 2 and 3a have been reduced to phosphines 13 and 14 in good yield, while substituted BINAP(O)2 derivatives failed to give the desired diphosphines. The stereochemistry of six phosphine oxides (2, 3a, 5, 8, 9, 11a) and one phosphine (13) has been elucidated by crystal structure determinations.