(S)-SIPHOS
(S)-(-)-7,7'-Bis(diarylphosphoramidite)-1,1'-spirobiindane
Chiral Ligands
Catalysts
Request Quote
(S)-SIPHOS is the chiral monodentate spiro phosphoramidite ligand developed by Zhou Qi-Lin. Built on the SPINOL scaffold, it forms highly enantioselective rhodium and palladium complexes for asymmetric hydrogenation, allylic substitution, and hydrosilylation reactions.
Applications
- Asymmetric hydrogenation of dehydroamino acids (Rh)
- Enantioselective hydrogenation of enamides
- Palladium-catalyzed allylic alkylation
- Asymmetric hydrosilylation of styrenes
Specifications
| Property | Value |
|---|---|
| CAS | 325166-58-7 |
| Molecular Formula | C33H26NO3P |
| Molecular Weight | 515.54 g/mol |
| Purity | >99% |
| Appearance | White to off-white solid |
Features
- Monodentate phosphoramidite design
- Spiro backbone provides rigidity
- Excellent with Rh for dehydroamino acids
- Cost-effective asymmetric hydrogenation
Related Products
Chiral Ligands
(1R,2R)-trans-1,2-Diaminocyclohexane
(1R,2R)-Cyclohexane-1,2-diamine
CAS:
20439-47-8
Formula:
C6H16N2
MW:
116.2 g/mol
Chiral Ligands
Catalysts
View Details ->
Chiral Ligands
(1S,2S)-trans-1,2-Diaminocyclohexane
(1S,2S)-Cyclohexane-1,2-diamine
CAS:
21439-79-0
Formula:
C6H16N2
MW:
116.2 g/mol
Chiral Ligands
Catalysts
View Details ->
Chiral Ligands
(R,R)-DACH-Phenyl Trost Ligand
(1R,2R)-N1,N2-Bis(2-diphenylphosphinobenzylidene)cyclohexane-1,2-diamine
CAS:
138517-61-0
Formula:
C42H44N2O2
MW:
612.81 g/mol
Chiral Ligands
Catalysts
View Details ->
Chiral Ligands
(R)-BINAP
(R)-(+)-1,1'-binaphthyl-2,2'-diyl bis(diphenylphosphine)
CAS:
76189-55-4
Formula:
C44H32P2
MW:
622.67 g/mol
Chiral Ligands
Catalysts
View Details ->
Chiral Ligands
(R)-BINOL
(R)-(+)-1,1'-Bi-2-naphthol
CAS:
18531-94-7
Formula:
C20H14O2
MW:
286.32 g/mol
Chiral Ligands
Catalysts
View Details ->
Chiral Ligands
(R)-CHIRAPHOS
(2R,3R)-Bis(diphenylphosphino)butane
CAS:
64896-31-7
Formula:
C26H24P2
MW:
398.41 g/mol
Chiral Ligands
Catalysts
View Details ->