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

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

Reactions

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-diethyl-1-phospholanyl]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, 97+%;(?)-1,2-Bis[(2R,5R)-2,5-diethylphospholano]benzene
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
Appearance: Colorless to light yellow Liquid
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: $54.81
Updated: 2025/07/31

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

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

Strem Chemicals

Product number: 15-0097
Product name: (-)-1,2-Bis((2R,5R)-2,5-diethylphospholano)benzene, 98+% (R,R)-Et-DUPHOS
Packaging: 500mg
Price: $283
Updated: 2024/03/01

Sigma-Aldrich

Product number: 668494
Product name: (?)-1,2-Bis[(2R,5R)-2,5-diethylphospholano]benzene
Purity: kanata purity
Packaging: 500mg
Price: $191.1
Updated: 2025/07/31

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(-)-1,2-BIS((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE Chemical Properties,Usage,Production

Reactions

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

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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((2R,5R)-2,5-DIETHYLPHOSPHOLANO)BENZENE(CYCLOOCTADIENE)RHODIUM(I)TRIFLUOROMETHANESULFONATE (+)-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-diisopropylphospholano]benzene

(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-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[(2<i>R</i>,5<i>R</i>)-2,5-diethylphospholano]benzene

(-)-1,2-Bis((2R,5R)-2,5-diethylphospholano)benzene,

1,2-Bis[(2R,5R)-2,5-diethyl-1-phospholanyl]benzene

136705-64-1

DuPhos/BPE

Privileged Ligands

Asymmetric Synthesis

Chiral Catalysts, Ligands, and Reagents

organophosphine ligand