861909-33-3

Basic information

• Product Name: (R)-3,3'-dibromo-1,1'-binaphthalene-2,2'-diyl phosphoric acid
• CAS NO: 861909-33-3
• Molecular Weight: 506.087
• Mol File: 861909-33-3.mol

Chemical Properties

• CAS DataBase Reference: (R)-3,3'-dibromo-1,1'-binaphthalene-2,2'-diyl phosphoric acid(CAS DataBase Reference)
• NIST Chemistry Reference: (R)-3,3'-dibromo-1,1'-binaphthalene-2,2'-diyl phosphoric acid(861909-33-3)
• EPA Substance Registry System: (R)-3,3'-dibromo-1,1'-binaphthalene-2,2'-diyl phosphoric acid(861909-33-3)

Safety Data

• Hazardous Substances Data: 861909-33-3(Hazardous Substances Data)

Relevant articles and documents

Synthesis, structural analysis, and catalytic properties of tetrakis(binaphthyl or octahydrobinaphthyl phosphate) dirhodium(II,II) complexes

The X-ray structural analyses of homoleptic Rh(II) complexes made of enantiopure (R)-1,1′-binaphthyl and (R)-(5,5′,6,6′,7,7′, 8,8′-octahydro)binaphthyl phosphate ligands are for the first time presented. The possibility to introduce halogen atoms at the 3,3′-positions is also reported. The isolated dirhodium complexes were further tested as catalysts (1 mol %) in enantioselective cyclopropanations and Si-H insertion reactions, affording chiral cyclopropanes and silanes in good yield but moderate enantioselectivity (ee max 63%).

A protecting-group-free route to chiral BINOL-phosphoric acids

A two-step, protecting group-free route for the synthesis of 3,3′-disubstituted and 6,6′-disubstituted chiral BINOL-phosphoric acids has been realized starting from commercially available brominated BINOLs. This synthesis relies on the direct Suzuki coupl

Chiral lithium salts of phosphoric acids as Lewis acid-base conjugate catalysts for the enantioselective cyanosilylation of ketones

The catalytic enantioselective cyanosilylation of aromatic ketones was developed by using chiral lithium salts of (R)-BINOL- or (S)-BINAM-derived phosphoric acid compounds. In the presence of 10 mol% of chiral conjugate lithium salts, the corresponding tertiary cyanohydrins were obtained in high yields with moderate to high enantio-selectivities. This is the first efficient example of asymmetric catalysis using lithium salts of synthetically useful chiral phosphoric acid compounds. A possible catalytic mechanism and transition states are also discussed as a preliminary working hypothesis.