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668486

Sigma-Aldrich

(+)-1,2-Bis[(2S,5S)-2,5-diethylphospholano]benzene

Namena purity

Synonym(s):

(2S,2′S,5S,5′S)-2,2′,5,5′-Tetraethyl-1,1′-(o-phenylene)diphospholane, (S,S)-Ethyl-DUPHOS

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About This Item

Empirical Formula (Hill Notation):
C22H36P2
CAS Number:
136779-28-7
Molecular Weight:
362.47
Beilstein:
4814174
MDL number:
MFCD00142321
UNSPSC Code:
12352005
PubChem Substance ID:
24884986
NACRES:
NA.22

Quality Level

100

refractive index

n20/D 1.581

density

1.010 g/mL at 25 °C

functional group

phosphine

SMILES string

CC[C@H]1CC[C@H](CC)P1c2ccccc2P3[C@@H](CC)CC[C@@H]3CC

InChI

1S/C22H36P2/c1-5-17-13-14-18(6-2)23(17)21-11-9-10-12-22(21)24-19(7-3)15-16-20(24)8-4/h9-12,17-20H,5-8,13-16H2,1-4H3/t17-,18-,19-,20-/m0/s1

InChI key

GVVCHDNSTMEUCS-MUGJNUQGSA-N

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Application

DuPhos and BPE Ligands: Highly Efficient Privileged Ligands
(+)-1,2-Bis[(2S,5S)-2,5-diethylphospholano]benzene is a chiral ligand that can be used to prepare its rhodium metal complexes, which are used as catalysts in asymmetric hydrogenation reactions.

Legal Information

Sold in collaboration with Namena Corp. for research purposes only. These compounds were made and sold under license from E.I. du Pont de Nemours and Company, which license does not include the right to use the compounds in producing products for sale in the pharmaceutical field.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCM2398
MKCM2695
MKCF7421
MKCG5105
MKBQ2944V

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Asymmetric synthesis of γ-butyrolactones by enantioselective hydrogenation of butenolides
Donate PM, et al.
Tetrahedron Asymmetry, 14(20), 3253-3256 (2003)
Assymetric synthesis of (2S, 3R)-and (2S, 3S)-[2-13C; 3-2H] glutamic acid
Okuma K, et al.
Tetrahedron Letters, 50(13), 1482-1484 (2009)

Articles

DuPhos and BPE Ligands

Asymmetric hydrogenation reactions represent the ideal process for the commercial manufacture of single-enantiomer compounds, because of the ease by which these robust procedures can be scaled up and because of the low levels of byproducts generated in these asymmetric hydrogenations.

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