503269-75-8

Basic information

• Product Name: [4,4'-bis(2,2-difluoro-1,3-benzodioxol)-5,5'-diyl]bis(diphenylphosphane oxide)
• CAS NO: 503269-75-8
• Molecular Weight: 714.546
• Mol File: 503269-75-8.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: [4,4'-bis(2,2-difluoro-1,3-benzodioxol)-5,5'-diyl]bis(diphenylphosphane oxide)(CAS DataBase Reference)
• NIST Chemistry Reference: [4,4'-bis(2,2-difluoro-1,3-benzodioxol)-5,5'-diyl]bis(diphenylphosphane oxide)(503269-75-8)
• EPA Substance Registry System: [4,4'-bis(2,2-difluoro-1,3-benzodioxol)-5,5'-diyl]bis(diphenylphosphane oxide)(503269-75-8)

Safety Data

• Hazardous Substances Data: 503269-75-8(Hazardous Substances Data)

Upstream product

• 33070-32-5 5-bromo-2,2-difluoro-2H-1,3-benzodioxole 
• 1499-21-4 Diphenylphosphinic chloride 
• 503269-73-6 (2,2-difluoro-1,3-benzodioxol-5-yl)diphenylphosphane oxide 
• 503269-74-7 (2,2-difluoro-4-iodo-1,3-benzodioxol-5-yl)diphenylphosphane oxide 

Downstream Products

• 503538-69-0 (R)-(-)-5,5’-bis(diphenyl;phosphine)-2,2,2’,2’-tetrafluoro-4,4’-bi-1,3-benzodioxole 

Relevant articles and documents

Difluorphos, an Electron-Poor Disphosphane: A Good Match between Electronic and Steric Features

The π acidity makes the difference: The fluorinated diphosphane, difluorphos, is synthesized (see structure: purple = P, red = O, green = F, gray = C) and its stereoelectronic features are evaluated in theoretical and experimental studies. Its unusual π acidity explains the excellent results obtained with it in ruthenium-mediated asymmetric hydrogenation of fluorinated β-functionalized ketones. These results are better than those obtained with other biphenyl-based diphosphanes.