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ChemicalBook > CAS DataBase List > (-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE

(-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE

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Product Name
(-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE
CAS No.
136705-64-1
Chemical Name
(-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE
Synonyms
(R,R)-ET-DUPHOS;(R,R)-ETHYL-DUPHOS;(-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE;1,2-Bis((2R,5R)-2,5-diethylphospholan-1-yl)benzene;(-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE;(-)-1,2-Bis[(2R,5R)-2,5-diethylphospholano]benzene,97%;(-)-1,2-Bis[(2R,5R)-2,5-Diethyl-1-Phospholanyl]Benzene;(-)-1,2-Bis[(2R,5R)-2,5-diethyl-1-phospholanyl]benzene;(-)-1,2-Bis[(2R,5R)-2,5-diethyl-1-phospholanyl]benzene, 97+%;(-)-1,2-Bis((2R,5R)-2,5-diethylphospholano)benzene(r,r)-et-duphos
CBNumber
CB8764621
Molecular Formula
C22H36P2
Formula Weight
362.47
MOL File
136705-64-1.mol
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(-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE Property

alpha 
D25 -265° (c = 1 in hexane)
Boiling point:
bp0.045 138-145°
Density 
1.01 g/mL at 25 °C
refractive index 
n 20/D 1.6
Flash point:
>230 °F
storage temp. 
under inert gas (nitrogen or Argon) at 2-8°C
Sensitive 
Air Sensitive
Merck 
13,3499
BRN 
4814174
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
F 
1-10
HS Code 
29310099
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

H413May cause long lasting harmful effects to aquatic life

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
668494
Product name
(?)-1,2-Bis[(2R,5R)-2,5-diethylphospholano]benzene
Purity
kanata purity
Packaging
100mg
Price
$45.6
Updated
2024/03/01
Sigma-Aldrich
Product number
14736
Product name
(−)-1,2-Bis[(2R,5R)-2,5-diethylphospholano]benzene
Purity
technical,~90%(GC)
Packaging
100mg
Price
$170
Updated
2023/01/07
Alfa Aesar
Product number
H60470
Product name
(-)-1,2-Bis[(2R,5R)-2,5-diethyl-1-phospholanyl]benzene, 97+%
Packaging
250mg
Price
$128
Updated
2021/12/16
Alfa Aesar
Product number
H60470
Product name
(-)-1,2-Bis[(2R,5R)-2,5-diethyl-1-phospholanyl]benzene, 97+%
Packaging
1g
Price
$386
Updated
2021/12/16
Strem Chemicals
Product number
15-0097
Product name
(-)-1,2-Bis((2R,5R)-2,5-diethylphospholano)benzene, 98+% (R,R)-Et-DUPHOS
Packaging
100mg
Price
$82
Updated
2024/03/01
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(-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE Chemical Properties,Usage,Production

Reactions

  1. Ligand used in rhodium catalyzed asymmetric hydrogenation of 2-methylenesuccinamic acid.
  2. Cobalt-catalyzed asymmetric hydrogenation. 

Chemical Properties

Clear colorless liquid or low melting solid

Uses

DuPhos and BPE Ligands: Highly Efficient Privileged Ligands

Uses

Catalyst for asymmetric hydrogenations.

(-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE Preparation Products And Raw materials

Raw materials

Preparation Products

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(-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE Suppliers

Belgium 1 China 40 Germany 2 India 1 Japan 2 Norway 1 Switzerland 1 The Netherlands 1 United Kingdom 1 United States 5 Global 55
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Switzerland
ProdList
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Advantage
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136705-64-1, (-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENERelated Search:

(R,R)-2,3-Butanediol (3R,6R)-3,6-OCTANEDIOL Metformin hydrochloride (R)-5-fluoro-3-methylisobenzofuran-1(3H)-one (+)-1,2-BIS[(2S,5S)-2,5-DIMETHYLPHOSPHOLANO]BENZENE (S)-5-fluoro-3-methylisobenzofuran-1(3H)-one (-)-1,2-BIS[(2R,5R)-2,5-DIMETHYLPHOSPHOLANO]BENZENE (+)-1,2-BIS[(2S,5S)-2,5-DIETHYLPHOSPHOLANO]BENZENE (+)-1,2-BIS((2R,5R)-2,5-DIMETHYLPHOSPHOLANO)ETHANE (+)-1,2-BIS((2S,5S)-2,5-DIETHYLPHOSPHOLANO)BENZENE(CYCLOOCTADIENE)RHODIUM (I) TRIFLUOROMETHANESULFONATE (S,S)-I-PR-DUPHOS (-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE(CYCLOOCTADIENE)RHODIUM(L)TETRAFLUOROBORATE (-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE (+)-1,2-BIS((2S,5S)-2,5-DIETHYLPHOSPHOLANO)BENZENE(CYCLOOCTADIENE)RHODIUM(L)TETRAFLUOROBORATE (-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE(CYCLOOCTADIENE)RHODIUM(I)TRIFLUOROMETHANESULFONATE (-)-1,2-BIS((2S,5S)-2,5-DI-I-PROPYLPHOSPHOLANO)BENZENE(1,5-CYCLOOCTADIENE)RHODIUM (I) TETRAFLUOROBORATE (-)-1,2-Bis((2R,5R)-2,5-diethylphospholano)benzene(cyclooctadiene)rhodium(I) trifluoromethanesulfonate

  • (2R,2'R,5R,5'R)-2,2'-5,5'-TETRAETHYL-1,1'-(O-PHENYLENE)DIPHOSPHOLANE
  • (-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE
  • (R,R)-ETHYL-DUPHOS
  • (R,R)-ET-DUPHOS
  • (-)-1,2-Bis[(2R,5R)-2,5-diethylphospholano]benzene, Kanata purity
  • (-)-1,2-Bis((2R,5R)-2,5-diethylphospholano)benzene(r,r)-et-duphos
  • (-)-1,2-Bis((2R,5R)-2,5-diethylphospholano)benzene,98+%(R,R)-Et-DUPHOS
  • (R,R)-Ethyl-DUPHOS, (2R,2μR,5R,5μR)-2,2μ-5,5μ-Tetraethyl-1,1μ-(o-phenylene)diphospholane
  • (-)-1,2-Bis[(2R,5R)-2,5-diethylphospholano]benzene,97%
  • (-)-1,2-Bis[(2R,5R)-2,5-diethyl-1-phospholanyl]benzene, 97+%
  • (-)-1,2-Bis-[(2R,5R)-2,5-diethylphospholano]benzene, 97% (R,R-Et-Duphos)
  • (2R,2'R,5R,5'R)-2,2'-5,5'-TETRAETHYL-1,1'-(1,2-PHENYLENE)DIPHOSPHOLANE
  • (-)-1,2-Bis[(2R,5R)-2,5-Diethyl-1-Phospholanyl]Benzene
  • 1,2-Bis((2R,5R)-2,5-diethylphospholan-1-yl)benzene
  • Phospholane, 1,1'-(1,2-phenylene)bis[2,5-diethyl-, (2R,2'R,5R,5'R)-
  • (-)-1,2-Bis[(2R,5R)-2,5-diethyl-1-phospholanyl]benzene
  • (-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE
  • 136705-64-1
  • DuPhos/BPE
  • Privileged Ligands
  • Asymmetric Synthesis
  • Chiral Catalysts, Ligands, and Reagents
  • organophosphine ligand