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XPhos

Name: XPhos
Brand: ALDRICH

98%

Synonym(s):

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

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About This Item

Empirical Formula (Hill Notation):

C₃₃H₄₉P

CAS Number:

564483-18-7

Molecular Weight:

476.72

NACRES:

NA.22

PubChem Substance ID:

24882906

UNSPSC Code:

12352103

MDL number:

MFCD04117682

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Properties

Quality Segment

300

product line

Buchwald Ligand

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

Description

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.

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.

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.

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

Legal Information

Usage subject to US Patent 7,223,879

Usage subject to US Patents 6307087 and 6395916.

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Storage Class

13 - Non Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Protocols

Cross-Coupling Reactions in Water

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

Articles

クロスカップリング反応に有用な1-tBu-Indenyl基を有するパラジウム触媒前駆体

Hazari らのグループは、クロスカップリング反応に広く適用可能なパラジウム触媒前駆体の開発を進めています。

Buchwald Phosphine Ligands

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