Skip to Content
MilliporeSigma
All Photos(8)

Key Documents

View All Documentation

638064

Sigma-Aldrich

XPhos

greener alternative

98%

Synonym(s):

2-Dicyclohexylphosphino-2′,4′,6′-triisopropylbiphenyl

Sign Into View Organizational & Contract Pricing
All Photos(8)

About This Item

Empirical Formula (Hill Notation):
C33H49P
CAS Number:
564483-18-7
Molecular Weight:
476.72
MDL number:
MFCD04117682
UNSPSC Code:
12352103
PubChem Substance ID:
24882906
NACRES:
NA.22

Quality Level

300

assay

98%

reaction suitability

reaction type: Cross Couplings
reagent type: ligand
reaction type: Buchwald-Hartwig Cross Coupling Reaction
reagent type: ligand
reaction type: C-C Bond Formation
reagent type: ligand
reaction type: Heck Reaction
reagent type: ligand
reaction type: Hiyama Coupling
reagent type: ligand
reaction type: Negishi Coupling
reagent type: ligand
reaction type: Sonogashira Coupling
reagent type: ligand
reaction type: Stille Coupling
reagent type: ligand
reaction type: Suzuki-Miyaura Coupling

greener alternative product score

old score: 2
new score: 1
Find out more about DOZN™ Scoring

greener alternative product characteristics

Waste Prevention
Atom Economy
Use of Renewable Feedstocks
Catalysis
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

mp

187-190 °C (lit.)

functional group

phosphine

greener alternative category

, Re-engineered

SMILES string

CC(C)C1=CC(C(C)C)=CC(C(C)C)=C1C2=C(P(C3CCCCC3)C4CCCCC4)C=CC=C2

InChI

1S/C33H49P/c1-23(2)26-21-30(24(3)4)33(31(22-26)25(5)6)29-19-13-14-20-32(29)34(27-15-9-7-10-16-27)28-17-11-8-12-18-28/h13-14,19-25,27-28H,7-12,15-18H2,1-6H3

InChI key

UGOMMVLRQDMAQQ-UHFFFAOYSA-N

Related Categories

General description

We are committed to bringing you Greener Alternative Products, which adhere to one of the four categories of Greener Alternatives . This product belongs to category of Re-engineered products, showing key improvements in Green Chemistry Principles “Waste Prevention”, “Atom Economy”, “Use of Renewable Feedstock” and “Enhanced Catalytic Activity”. Click here to view its DOZN scorecard.
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for catalytic efficiency. Click here for more information.
XPhos [2-Dicyclohexylphosphino-2′,4′,6′-triisopropylbiphenyl] is an air-stable electron-rich biaryl monophosphine ligand2 developed by the Buchwald group to enhance the reactivity of palladium catalysis during cross-coupling reactions.

Application

Ligand used in a Pd-catalyzed Suzuki coupling leading to C-15 analogs of vindoline.
Direct annulation of 2-haloanilines to indoles and tryptophans catalyzed by Pd. Synthesis of regioregular polythiophenes.
Preferred ligand for greener Sonogashira coupling in TPGS-750-M.
Preferred ligand for greener Sonogashira coupling in TPGS-750-M.

For small scale and high throughput uses, product is also available as ChemBeads (928364)

On the Way Towards Greener Transition-Metal-Catalyzed Processes as Quantified by E Factors
XPhos may be used as a ligand in the following reactions:
  • Preparation of functionalized benzylic sulfones via palladium-catalyzed Negishi cross-coupling between alkyl sulfones and aryl halides.
  • Along with pre-milled palladium(II) acetate as a pre-catalyst for the Stille cross-coupling of aryl chlorides with tributylarylstannanes to form the corresponding biaryl compounds.
  • Along with platinum chloride to catalyze the hydrosilylation of terminal arylalkynes with silanes to form functionalized β-(E)-vinylsilanes.
Ligand for increased scope of Pd-catalyzed amination and amidation via arene sulfonates, aryl halides.

Legal Information

Usage subject to US Patent 7,223,879
Usage subject to US Patents 6307087 and 6395916.

related product

Product No.
Description
Pricing

918008

GPhos, ≥95%

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Palladium-Catalyzed Stille Cross-Coupling Reaction of Aryl Chlorides using a Pre-Milled Palladium Acetate and XPhos Catalyst System.
Advanced Synthesis & Catalysis, 350(7-8), 957-961 (2008)
Yanxing Jia et al.
The Journal of organic chemistry, 71(20), 7826-7834 (2006-09-26)
One-pot synthesis of indoles by a palladium-catalyzed annulation of ortho-haloanilines and aldehydes has been developed. Coupling of ortho-iodoaniline with aldehyde is realized under mild ligandless conditions [Pd(OAc)2, DABCO, DMF, 85 degrees C], whereas X-Phos is found to be the ligand
Peter D Johnson et al.
The Journal of organic chemistry, 71(20), 7899-7902 (2006-09-26)
Described are general protocols for the rapid construction of various C-15-substituted analogues of vindoline using palladium-catalyzed cross-coupling reactions. The required bromo- and iodovindolines were prepared in high yield by the reaction of vindoline with N-bromosuccinimide or N-iodosuccinimide, respectively. The study
Xphos ligand and platinum catalysts: A versatile catalyst for the synthesis of functionalized ?-(E)-vinylsilanes from terminal alkynes.
Hamze A, et al.
Journal of Organometallic Chemistry, 693(16), 2789-2797 (2008)
Tetrahedron Letters, 47, 5143-5143 (2006)
View All Related Papers

Articles

Buchwald Phosphine Ligands

Buchwald Phosphine Ligands

1-tBu-Indenyl Supported Palladium Precatalysts for Cross-Coupling

The Hazari group has developed an improved palladium precatalyst scaffold for a wide range of cross-coupling reactions

Palladium-catalyzed Cross-coupling Reactions

A variety of palladium-catalyzed cross-coupling reactions can be run under room temperature conditions in water with TPGS- 750-M, using a variety of commercially available palladium complexes and ligands.

Buchwald Phosphine Ligands

Buchwald phosphine ligands for C-C, C-N, and C-O bond formation.

Protocols

Cross-Coupling Reactions in Water

TPGS-750-M surfactant enables various reactions in water at room temperature, enhancing efficiency and versatility in synthesis.

Related Content

Catalyst Screening with Catalexis

The Catalexis platform enhances catalysis by digitally optimizing catalyst selection to identify the most effective phosphine ligands for cross-coupling reactions.

Buchwald and non-Buchwald catalysts and ligands for pharma or industrial chemistry applications

Explore reliable, premium grade catalysis materials for your pharma or industrial project. Specialty chemicals and formulations are available in bulk quantities and volumes from a few grams to multi-metric tons with complete documentation to simplify your leap from development to commercialization.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service