1,1,1-Tris(diphenylphosphino)methane

Name: 1,1,1-Tris(diphenylphosphino)methane
Brand: ChemScene
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CAS No. 28926-65-0
Cat. No. CS-0108404
Purity≥95%
MDL No.MFCD00015527

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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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1,1,1-Tris(diphenylphosphino)methane|CS-0108404

Structure of 28926-65-0

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Description

1,1,1-Tris(diphenylphosphino)methane is a sterically crowded phosphine ligand featuring three diphenylphosphino groups attached to a central methylene carbon. This triphosphine motif delivers strong electron donation and enhanced stability in transition metal complexes. The molecule's rigid, three-dimensional architecture facilitates precise control over coordination geometry in catalytic systems. It is particularly effective in palladium- and nickel-catalyzed cross-coupling reactions, where its robustness under reaction conditions improves catalyst longevity and turnover efficiency.

Application

1,1,1-Tris(diphenylphosphino)methane serves as a versatile, bench-stable tridentate phosphine ligand in transition metal catalysis. Its three diphenylphosphino groups enable strong coordination to palladium, platinum, and rhodium centers, facilitating efficient cross-coupling reactions, hydrogenation processes, and C–H activation. The ligand’s steric bulk and electron-donating properties enhance catalyst stability and turnover, particularly in challenging transformations. Its high solubility and ease of purification make it well-suited for both academic research and industrial process development.

General Information

CAS No. 28926-65-0
Cat. No. CS-0108404
Purity ≥95%
MDL No. MFCD00015527
Storage 4°C, protect from light, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₃₇H₃₁P₃
Molecular Weight 568.58
Synonym(s) None
SMILES C(P(C1=CC=CC=C1)C2=CC=CC=C2)(P(C3=CC=CC=C3)C4=CC=CC=C4)P(C5=CC=CC=C5)C6=CC=CC=C6

Computational Chemistry Data

TPSA 0
LogP 7.6687
H_Acceptors 0
H_Donors 0
Rotatable_Bonds 9

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 : H315-H319-H335
Precautionary Statements : P261-P264-P271-P280-P302+P352-P304+P340-P362+P364-P405-P501

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1,1,1-Tris(diphenylphosphino)methane

CAS No. 28926-65-0

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