(S)-Cy-BINAP

Name: (S)-Cy-BINAP
Brand: ChemScene
Availability: InStock
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CAS No. 121457-42-9
Cat. No. CS-0146762
Purity≥98%
MDL No.None

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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. 121457-42-9
Cat. No. CS-0146762
Purity ≥98%
MDL No. None
Storage 4°C, protect from light, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₄₄H₅₆P₂
Molecular Weight 646.86
Synonym(s) (R)-(+)-2,2'-BIS(DICYCLOHEXYLPHOSPHINO)-1,1'-BINAPHTHYL
SMILES C12=CC=CC=C1C=CC(P(C3CCCCC3)C4CCCCC4)=[C@]2[C@]5=C(C=CC=C6)C6=CC=C5P(C7CCCCC7)C8CCCCC8

Description

(S)-Cy-BINAP is a chiral bisphosphine ligand featuring two cyano-substituted phenyl groups, delivering enhanced electron-withdrawing character and improved steric control. This configuration enables high enantioselectivity in palladium- and ruthenium-catalyzed asymmetric transformations. The ligand exhibits excellent stability under air and moisture, simplifying handling in synthetic workflows.

Application

(S)-Cy-BINAP serves as a highly effective chiral ligand in transition-metal-catalyzed asymmetric synthesis, enabling enantioselective transformations such as hydrogenation, allylic alkylation, and cross-coupling reactions. Its cyclohexyl-substituted biaryl structure provides enhanced steric bulk and electronic tuning, improving enantiocontrol and catalyst stability. The ligand exhibits excellent bench stability, ease of handling, and compatibility with a broad range of substrates, making it a practical choice for industrial-scale asymmetric processes.

Safety Information

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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-P280-P302+P352

Quality Control

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Computational Chemistry Data

TPSA 0
LogP 13.2052
H_Acceptors 0
H_Donors 0
Rotatable_Bonds 7

Key Words

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(S)-Cy-BINAP

CAS No. 121457-42-9

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