ChemicalBook >> CAS DataBase List >>(-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene
(-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene
- CAS No.
- 147253-67-6
- Chemical Name:
- (-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene
- Synonyms
- (R,R)-ME-DUPHOS;an-1-yL;(R,R)-METHYL-DUPHOS;()-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene;(-)-1,2-Bis((2R,5R)-2,5-dimethylphospholano)benzen;1,2-Bis[(2R,5R)-2,5-dimethyl-1-phospholanyl]benzene;1,2-bis((2R,5R)-2,5-dimethylphospholan-1-yl)benzene;(-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene;(-)-1,2-bis-((2R,5R)-2,5-Dimethylphospholano)benzene;(-) -1,2-bis ((2R, 5R) -2,5-dimethylphosphorus) benzene
- CBNumber:
- CB0456508
- Molecular Formula:
- C18H28P2
- Molecular Weight:
- 306.36
- MDL Number:
- MFCD00142336
- MOL File:
- 147253-67-6.mol
- MSDS File:
- SDS
- TDS File:
- TDS
Last updated:2026-09-12 18:48:20
| Melting point | 66-76 °C |
|---|---|
| Boiling point | 415.0±15.0 °C(Predicted) |
| alpha | -476° (c 1, hexane) |
| storage temp. | under inert gas (nitrogen or Argon) at 2-8°C |
| form | crystal |
| color | white |
| optical activity | [α]20/D -420±15°, c = 0.5 in methylene chloride |
| Water Solubility | Insoluble in water. |
| Sensitive | Air Sensitive |
| BRN | 4810602 |
| InChI | 1S/C18H28P2/c1-13-9-10-14(2)19(13)17-7-5-6-8-18(17)20-15(3)11-12-16(20)4/h5-8,13-16H,9-12H2,1-4H3/t13-,14-,15-,16-/m1/s1 |
| InChIKey | AJNZWRKTWQLAJK-KLHDSHLOSA-N |
| SMILES | C[C@@H]1CC[C@@H](C)P1c2ccccc2P3[C@H](C)CC[C@H]3C |
| CAS DataBase Reference | 147253-67-6 |
| FDA UNII | H5W03D1HAQ |
| UNSPSC Code | 12352005 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P280-P302+P352-P362+P364 | |||||||||
| PPE | Eyeshields, Gloves, type N95 (US) | |||||||||
| Safety Statements | 22-24/25 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 10-23 | |||||||||
| HS Code | 2934999090 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| NFPA 704 |
|
(-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene price More Price(32)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 665258 | (?)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene kanata purity | 147253-67-6 | 100mg | $78.5 | 2023-06-20 | Buy |
| TCI Chemical | B2436 | 1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene | 147253-67-6 | 100MG | $99 | 2026-04-30 | Buy |
| TCI Chemical | B2436 | 1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene | 147253-67-6 | 500MG | $410 | 2026-04-30 | Buy |
| Strem Chemicals | 15-0096 | (-)-1,2-Bis((2R,5R)-2,5-dimethylphospholano)benzene, min.98% (R,R)-Me-DUPHOS min.98% | 147253-67-6 | 100mg | $60 | 2026-04-30 | Buy |
| Strem Chemicals | 15-0096 | (-)-1,2-Bis((2R,5R)-2,5-dimethylphospholano)benzene, min.98% (R,R)-Me-DUPHOS min.98% | 147253-67-6 | 500mg | $258 | 2026-04-30 | Buy |
(-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene Chemical Properties,Uses,Production
Reactions
- The DUPHOS family of catalysts is highly efficient for the asymmetric hydrogenation of various substituted cetamidoacrylates and enol acetates yielding products of high enantiomeric excesses.
- Efficient ligand for the asymmetric hydrogenation of imines, enamines, and enamides.
- Asymmetric hydrogenation of vinyl alcohols.
- Catalyst used for the asymmetric hydrogenation of enol phosphonates.
- Asymmetric hydrogenation of allylic alcohols.
- Ligand for the catalytic asymmetric [4+1] cycloaddition of vinylallenes with CO.
- Ligand for the Rh-catalyzed asymmetric enyne cycloisomerization.
- Catalytic enantioselective addition of dialkylzinc to N-Diphenylphosphinoylimines.

Uses
1,2-Bis[(2R,5R)-2,5-dimethyl-1-phospholanyl]benzene is an important raw material and intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dyestuff. It is used as highly efficient privileged ligands.



Synthesis of (-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene from 1,2-Bis(phosphino)benzene and (2S,5S)-Hexane-2,5-diol cyclic sulfate
(-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene Preparation Products And Raw materials
Raw materials
Preparation Products
Global( 84)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| Beijing HwrkChemical Technology Co., Ltd | 89508211 18501085097 | sales.bj@hwrkchemical.com | China | 9407 | 55 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Adamas Reagent, Ltd. | 400-6009262 15618770481 | yhx@titansci.com | China | 14098 | 59 |
| Hunan Hui Bai Shi Biotechnology Co., Ltd. | 0731-85526065 13308475853 | ivy@hnhbsj.com | China | 7236 | 62 |
| TOKYO CHEMICAL INDUSTRY CO., LTD. | 03-36680489 | Sales-JP@TCIchemicals.com | Japan | 28364 | 80 |
| TCI Europe | 320-37350700 | sales@tcieurope.eu | Europe | 23654 | 75 |
| TCI AMERICA | 800-4238616 | sales@tciamerica.com | Americas | 23636 | 75 |
View Lastest Price from (-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
![]() |
2024-10-12 | (-)-1,2-BIS[(2R,5R)-2,5-DIMETHYLPHOSPHOLANO]BENZENE
147253-67-6
|
$7.00 | 98% | 1KG; 10KG; 50KG; 100KG and more | Career Henan Chemical Co | ||
![]() |
2021-07-02 | ()-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene
147253-67-6
|
$10.00-15.00 | 1KG | 99%+ HPLC | Zhuozhou Wenxi import and Export Co., Ltd |
-
![(-)-1,2-BIS[(2R,5R)-2,5-DIMETHYLPHOSPHOLANO]BENZENE pictures](/ProductImageEN1/2024-10/Small/affe519d-df8c-4ea4-a0b1-1cda4d21924f.png)
- (-)-1,2-BIS[(2R,5R)-2,5-DIMETHYLPHOSPHOLANO]BENZENE
147253-67-6
- $7.00
- 98%
- Career Henan Chemical Co
-
![()-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene pictures](/ProductImageEN/2021-06/Small/bfce43ff-876f-450a-bba2-41e5ee21bc7d.jpg)
- ()-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene
147253-67-6
- $10.00-15.00
- 99%+ HPLC
- Zhuozhou Wenxi import and Export Co., Ltd
147253-67-6((-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene)Related Search:
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1,2-Bis((2R,5R)-2,5-dimethylphospholano&
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[2R-[1(2'R*,5'R*),2a,5b]]-1,1'-(1,2-phenylene)bis[2,5-dimethylphospholane]
(-)-1,2-Bis((2R,5R)-2,5-dimethylphospholano)benzene, min.97% (R,R)-Me-DUPHOS
Phospholane, 1,1'-(1,2-phenylene)bis[2,5-dimethyl-, (2R,2'R,5R,5'R)-
an-1-yL
()-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene
(-)-1,2-bis-((2R,5R)-2,5-Dimethylphospholano)benzene
(-)-1,2-Bis((2R,5R)-2,5-dimethylphospholano)benzene (R,R)-Me-Duphos
(-) -1,2-bis ((2R, 5R) -2,5-dimethylphosphorus) benzene
()-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene,≥95.0%
(?)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene
(-)-1,2-Bis((2R,5R)-2,5-dimethylphospholano)benzen
(R,R)-ME-DUPHOS
(-)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]benzene
147253-67-6
C18H28P2
Asymmetric Synthesis
Chiral Catalysts, Ligands, and Reagents
Privileged Ligands
DuPhos/BPE
organophosphine ligand





