(R)-SIPHOS

Name: (R)-SIPHOS
Brand: ChemScene
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CAS No. 443965-14-8
Cat. No. CS-0037009
Purity≥97%
MDL No.MFCD08459340

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Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
Inaccessible (Haz class 6.1 or 9), Domestic	$68.00+
Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

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General Information

CAS No. 443965-14-8
Cat. No. CS-0037009
Purity ≥97%
MDL No. MFCD08459340
Storage 4°C, protect from light, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₁₉H₂₀NO₂P
Molecular Weight None
Synonym(s) N-DIMETHYL-[(S)-1,1-SPIROBIINDANE-7,7-DIYL]PHOSPHORAMIDITE
SMILES CN(C)P1OC2=CC=CC3=C2C(CC3)(CC4)C5=C4C=CC=C5O1

Description

(R)-SIPHOS is a chiral phosphine ligand featuring a sterically hindered, electron-rich architecture that enhances catalytic efficiency in asymmetric transition metal reactions. This bench-stable compound integrates seamlessly into palladium- and nickel-catalyzed cross-coupling processes, delivering high enantioselectivity and robust performance under standard conditions.

Application

(R)-SIPHOS serves as a highly effective chiral ligand in palladium-catalyzed cross-coupling reactions, enabling enantioselective C–C bond formation with broad functional group tolerance. Its robust bench stability and predictable stereocontrol make it ideal for iterative synthesis of complex chiral intermediates in medicinal chemistry and process development workflows.

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

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Computational Chemistry Data

TPSA 21.7
LogP 4.4248
H_Acceptors 3
H_Donors 0
Rotatable_Bonds 1

Other Classifications

Catalysts and Ligands Ligands Other Phosphorus Ligands Other related phosphine Ligands

Catalysis Cross-Coupling Phosphine Ligands

Catalysis Cross-coupling Reaction using Transition Metal Catalysts Phosphine Ligands

Catalysis Asymmetric Synthesis Chiral Catalysts, Chiral Ligands, Chiral Reagents Chiral Ligands (Other)

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(R)-SIPHOS

CAS No. 443965-14-8

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