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295825

Sigma-Aldrich

(S)-(−)-2,2′-Bis(diphenylphosphino)-1,1′-binaphthalene

97%

Synonym(s):

(S)-(−)-(1,1′-Binaphthalene-2,2′-diyl)bis(diphenylphosphine), (S)-(−)-BINAP

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About This Item

Linear Formula:
[(C6H5)2PC10H6-]2
CAS Number:
76189-56-5
Molecular Weight:
622.67
Beilstein:
5321443
MDL number:
MFCD00010805
UNSPSC Code:
12352005
PubChem Substance ID:
24857815
NACRES:
NA.22

Assay

97%

form

solid

optical activity

[α]19/D −233°, c = 0.3 in toluene

optical purity

ee: 99% (HPLC)

mp

238-240 °C (lit.)

InChI

1S/C44H32P2/c1-5-19-35(20-6-1)45(36-21-7-2-8-22-36)41-31-29-33-17-13-15-27-39(33)43(41)44-40-28-16-14-18-34(40)30-32-42(44)46(37-23-9-3-10-24-37)38-25-11-4-12-26-38/h1-32H

InChI key

MUALRAIOVNYAIW-UHFFFAOYSA-N

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Application

2,2′-Bis(diphenylphosphino)-1,1′-binaphthyl and its rhodium and ruthenium derivatives are highly selective homogeneous catalysts used for the reduction of aryl ketones, β-keto esters, and α-amino ketones. They have also been used for asymmetric hydrogenation and hydroformylation of olefins, asymmetric Heck reactions, and asymmetric isomerizations of allyls.
Ligand used in a palladium-catalyzed, asymmetric, tandem Heck reaction-carbanion capture process leading to a synthesis of a tricyclic sesquiterpene. Also used in a ruthenium-catalyzed asymmetric hydrogenation of α,β-unsaturated acids.
Reactant involved in:
  • Enantioselective and diastereoselective unpoled carbonyl allylation
  • Syntehsis of organophophine oxides as anittumor agents
  • SN2 halogenation of hydroxy groups
  • Synthesis of BINAP complexes
  • Studies of conformational flexibility of BINAP chelates

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Synlett, 3053-3053 (2006)
Leslie Ann So Alfaro et al.
Stem cells (Dayton, Ohio), 29(12), 2030-2041 (2011-10-15)
Expression of the cell surface sialomucin CD34 is common to many adult stem cell types, including muscle satellite cells. However, no clear stem cell or regeneration-related phenotype has ever been reported in mice lacking CD34, and its function on these
David M Tellers et al.
Journal of the American Chemical Society, 128(51), 17063-17073 (2006-12-21)
Ruthenium complexes employing axially chiral ligands were found to be effective asymmetric hydrogenation catalysts for the reduction of alpha,beta-unsaturated ene acid 1-E to give 2, a prostaglandin D2 (PGD2) receptor antagonist. With [(S-BINAP)Ru(p-cymene)Cl2]2 (3, S-BINAP = (S)-(+)-2,2'-bis(diphenylphospino)-1,1'-binapthyl), it was discovered
Smith, P. et al.
Synthetic Communications, 25, 1093-1093 (1995)
Kurihara, Y. et al.
Chemical & Pharmaceutical Bulletin, 42, 2357-2357 (1994)
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BINAP/SEGPHOS® Ligands and Complexes

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