Lot numbers can be found on the outside label of a product:
(R,R)-EtDuPHOS
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CAS No. 136705-64-1
- Cat. No. CS-0092887
- Purity≥97%
- MDL No.MFCD00142335
*For research and further manufacturing use only, not for direct human use.
Structure of 136705-64-1
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General Information
- CAS No. 136705-64-1
- Cat. No. CS-0092887
- Purity ≥97%
- MDL No. MFCD00142335
- Storage 4°C, protect from light, stored under nitrogen
- Shipping Room temperature in continental US; may vary elsewhere.
- Molecular Formula C₂₂H₃₆P₂
- Molecular Weight 362.47
- Synonym(s) (R,R)-Ethyl-DUPHOS, (2R,2μR,5R,5μR)-2,2μ-5,5μ-Tetraethyl-1,1μ-(o-phenylene)diphospholane
- SMILES CC[C@@H]1CC[C@@H](CC)P1C2=CC=CC=C2P3[C@@H](CC[C@H]3CC)CC
Application
(R,R)-EtDuPHOS is a chiral diphosphine ligand that enables highly enantioselective transition-metal-catalyzed reactions, particularly in palladium- and nickel-catalyzed cross-couplings. Its rigid, electron-rich structure enhances catalyst stability and promotes efficient asymmetric transformations. The ligand exhibits excellent bench stability, simplifies purification, and demonstrates broad functional group tolerance, making it a reliable choice for constructing complex chiral intermediates in medicinal chemistry and process development.
Synthesis
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Route1
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136705-66-3 - ~%
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In-stock
136705-64-1
References
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Burk, Mark J.; Feaster, John E.; Nugent, William A.; Harlow, Richard L. Journal of the American Chemical Society, 1993 , vol. 115, # 22 p. 10125 - 10138
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Route2
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80510-04-9 -
136705-67-4
- ~%
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In-stock
136705-64-1
References
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Burk, Mark J.; Feaster, John E.; Nugent, William A.; Harlow, Richard L. Journal of the American Chemical Society, 1993 , vol. 115, # 22 p. 10125 - 10138
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Safety Information
Download SDS|
GHS Pictogram :
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GHS No : GHS07
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Signal Word : Warning
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UN#: N/A
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Class : N/A
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Packing Group : N/A
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Hazard Statements : H302-H315-H319-H335
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Precautionary Statements : P261-P280-P302+P352
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Quality Control
Computational Chemistry Data
- TPSA 0
- LogP 6.603
- H_Acceptors 0
- H_Donors 0
- Rotatable_Bonds 6
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Key Words
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