(R)-(+)-2,2-Bis(diphenylphosphino)-1,1-binaphthalene, 97%, is supplied by Sigma-Aldrich. It is an axially dissymmetric bis(triaryl)phosphine ligand that is employed in several asymmetric reactions.

PRODUCT SPECIFICATIONS:

• Name: (R)-(+)-2,2-Bis(diphenylphosphino)-1,1-binaphthalene, 97%
• Category: Fine chemicals
• Brand: Sigma-Aldrich
• Pack size: 1G
• Catalog number: 295817-1G
• List price: 7892.1

PRODUCT FEATURES:

• Synonym: (R)-(+)-(1,1-Binaphthalene-2,2-diyl)bis(diphenylphosphine), (R)-(+)-BINAP
• CAS Number: 76189-55-4
• Linear Formula: [(C6H5)2PC10H6-]2
• Molecular Weight: 622.67
• Assay: 97%
• Optical activity: []19/D +233, c = 0.3 in toluene
• Optical purity: ee: 99% (HPLC)
• Melting point: 239-241 C (lit.)