2-(Di-tert-butylphosphino)biphenyl
- CAS No.
- 224311-51-7
- Chemical Name:
- 2-(Di-tert-butylphosphino)biphenyl
- Synonyms
- JohnPhos;ditert-butyl-(2-phenylphenyl)phosphane;2-(DI-T-BUTYLPHOSPHINO)BIPHENYL;(2-biphenyl)di-tert-butylphosphine;JnhnPhos;98% JohnPhos;JohnPhos 97%;2-(Di-t-butyL;CAS:224311-51-7;phosphino)biphenyL
- CBNumber:
- CB1108350
- Molecular Formula:
- C20H27P
- Molecular Weight:
- 298.4
- MDL Number:
- MFCD01862440
- MOL File:
- 224311-51-7.mol
- MSDS File:
- SDS
Melting point | 86-88 °C (lit.) |
---|---|
Boiling point | 405.5±24.0 °C(Predicted) |
Density | 1 g/cm3 |
storage temp. | Inert atmosphere,Room Temperature |
solubility | Chloroform (Slightly), Dichloromethane (Slightly), DMSO (Slightly, Heated, Sonicated) |
form | Crystals or Crystalline Powder |
color | White |
Water Solubility | Insoluble |
BRN | 8322131 |
Stability | Air Sensitive |
InChI | InChI=1S/C20H27P/c1-19(2,3)21(20(4,5)6)18-15-11-10-14-17(18)16-12-8-7-9-13-16/h7-15H,1-6H3 |
InChIKey | CNXMDTWQWLGCPE-UHFFFAOYSA-N |
SMILES | P(C1=CC=CC=C1C1=CC=CC=C1)(C(C)(C)C)C(C)(C)C |
CAS DataBase Reference | 224311-51-7(CAS DataBase Reference) |
FDA UNII | 5Y743P380H |
UNSPSC Code | 12352002 |
NACRES | NA.22 |
SAFETY
Risk and Safety Statements
Symbol(GHS) | ![]() GHS07 |
---|---|
Signal word | Warning |
Hazard statements | H315-H319-H413 |
Precautionary statements | P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313 |
Hazard Codes | Xn |
Risk Statements | 36/37/38-22 |
Safety Statements | 36/37/39-26-22 |
WGK Germany | 3 |
F | 10-23 |
TSCA | No |
HazardClass | AIR SENSITIVE |
HS Code | 29029090 |
2-(Di-tert-butylphosphino)biphenyl price More Price(43)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich | 638439 | JohnPhos 97% | 224311-51-7 | 1g | $61.3 | 2024-03-01 | Buy |
Sigma-Aldrich | 638439 | JohnPhos 97% | 224311-51-7 | 5g | $291 | 2024-03-01 | Buy |
TCI Chemical | D3387 | 2-(Di-tert-butylphosphino)biphenyl >98.0%(GC) | 224311-51-7 | 1g | $73 | 2024-03-01 | Buy |
TCI Chemical | D3387 | 2-(Di-tert-butylphosphino)biphenyl >98.0%(GC) | 224311-51-7 | 5g | $301 | 2024-03-01 | Buy |
Strem Chemicals | 15-1045 | 2-(Di-t-butylphosphino))-1,1'-biphenyl, 99% JohnPhos | 224311-51-7 | 500mg | $29 | 2024-03-01 | Buy |
2-(Di-tert-butylphosphino)biphenyl Chemical Properties,Uses,Production
Reactions
- Ligand used in the palladium-catalyzed synthesis of aromatic amines from aryl chlorides, bromides and triflates.
- Ligand employed in a very active and general catalyst for Suzuki coupling reactions using aryl chlorides, bromides and triflates.
- Ligand used in palladium-catalyzed synthesis of oxindoles from α-chloroacetanilides.
- Effective ligand used in palladium-catalyzed arylation of thiazoles.
- Used in the formation of 2-benzylindolines via sequential palladium-catalyzed N-arylation/cyclization/C-arylation.
- Selective in the palladium-catalyzed arylation of silyl enol ethers formed from copper-catalyzed reduction of enones.

Chemical Properties
white to light yellow crystal powde
Uses
suzuki reaction
Uses
2-(Di-tert-butylphosphino)biphenyl (also known as JohnPhos) is a Buchwald ligand that is highly efficient in palladium-catalyzed reactions.
General Description
JohnPhos is a Buchwald′s sterically bulky biaryl phosphine ligand. It is a reactive dialkylbiaryl phosphine ligand which catalyzes the carbon-nitrogen bond-forming reactions. Coordination chemistry of gold catalysts bearing JohnPhos as ligand has been investigated by NMR spectroscopy.
reaction suitability
reaction type: Cross Couplings
reagent type: ligand
reaction type: Buchwald-Hartwig Cross Coupling Reaction
reagent type: ligand
reaction type: C-X Bond Formation
reagent type: ligand
reaction type: Heck Reaction
reagent type: ligand
reaction type: Suzuki-Miyaura Coupling



2-(Di-tert-butylphosphino)biphenyl Preparation Products And Raw materials
Raw materials
Preparation Products
Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
XINXIANG RUNYU MATERIAL CO., LTD. | +86-13592593621; +8613592593621 | sales@runvmat.com | China | 411 | 58 |
Henan Research New Materials Co., Ltd. | +8618903931531 | sales018@researchvip.com | China | 169 | 58 |
Hebei Chuanghai Biotechnology Co., Ltd | +8615531157085 | abby@chuanghaibio.com | China | 8808 | 58 |
Hebei Mujin Biotechnology Co.,Ltd | +86 13288715578 +8613288715578 | sales@hbmojin.com | China | 12809 | 58 |
Shanghai UCHEM Inc. | +862156762820 +86-13564624040 | sales@myuchem.com | China | 7906 | 58 |
Capot Chemical Co.,Ltd. | +86-(0)57185586718 +86-13336195806 | sales@capot.com | China | 29730 | 60 |
Shanghai Daken Advanced Materials Co.,Ltd | +86-371-+86-371-66670886 | info@dakenam.com | China | 19805 | 58 |
ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
AB PharmaTech,LLC | 323-480-4688 | sales@acrospharmatech.com | United States | 989 | 55 |
career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29858 | 58 |
View Lastest Price from 2-(Di-tert-butylphosphino)biphenyl manufacturers
Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
---|---|---|---|---|---|---|---|---|
![]() |
2025-04-23 | 2-(Di-tert-butylphosphino)biphenyl
224311-51-7
|
US $0.00-0.00 / KG | 1KG | 99% | 20 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
![]() |
2025-04-23 | 2-(Di-tert-butylphosphino)biphenyl
224311-51-7
|
US $0.00 / g | 1g | 99%;sales036@researchvip.com;18903931628; | 100KG | Henan Research New Materials Co., Ltd. | |
![]() |
2025-03-21 | 2-(Di-tert-butylphosphino)biphenyl
224311-51-7
|
US $0.00 / KG | 1KG | 99% | 50000KG/month | Hebei Mujin Biotechnology Co.,Ltd |
-
- 2-(Di-tert-butylphosphino)biphenyl
224311-51-7
- US $0.00-0.00 / KG
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- 2-(Di-tert-butylphosphino)biphenyl
224311-51-7
- US $0.00 / g
- 99%;sales036@researchvip.com;18903931628;
- Henan Research New Materials Co., Ltd.
-
- 2-(Di-tert-butylphosphino)biphenyl
224311-51-7
- US $0.00 / KG
- 99%
- Hebei Mujin Biotechnology Co.,Ltd
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