682869

(11bS,11′bS)-4,4′-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin

• Synonym(s): S,S-Reetz X-Diphosphonite
• Empirical Formula (Hill Notation): C₅₅H₃₆O₅P₂
• CAS Number: 349114-57-4
• Molecular Weight: 838.82
• MDL number: MFCD09842740
• UNSPSC Code: 12352005
• PubChem Substance ID: 329760513
• NACRES: NA.22

Properties

• form: solid
• optical activity: [α]22/D -245°, c = 1 in chloroform
• mp: 195-207 °C (dec.)
• SMILES string: CC1(C)c2cccc(P3Oc4ccc5ccccc5c4-c6c(O3)ccc7ccccc67)c2Oc8c(cccc18)P9Oc%10ccc%11ccccc%11c%10-c%12c(O9)ccc%13ccccc%12%13
• InChI: 1S/C55H36O5P2/c1-55(2)41-21-11-23-47(61-57-43-29-25-33-13-3-7-17-37(33)49(43)50-38-18-8-4-14-34(38)26-30-44(50)58-61)53(41)56-54-42(55)22-12-24-48(54)62-59-45-31-27-35-15-5-9-19-39(35)51(45)52-40-20-10-6-16-36(40)28-32-46(52)60-62/h3-32H,1-2H3
• InChI key: DXZANFKSPAISOB-UHFFFAOYSA-N

Description

Application

• Catalyst for asymmetric hydrogenation of quinolines catalyzed by iridium complexes of BINOL-derived diphosphonites
• Ligand in asymmetric Ni-catalyzed hydrocyanation of styrene and other vinylarenes

This diphosphonite ligand has been successfully employed in Noyori-type asymmetric transfer hydrogenation of prochiral ketones.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable