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638080 Sigma-Aldrich

tBuXPhos

97%

Synonym: 2-Di-tert-butylphosphino-2′,4′,6′-triisopropylbiphenyl, t-Bu XPhos, tBuXPhos, tert-Butyl XPhos

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Properties

Related Categories Buchwald Ligands, Buchwald Ligands and Complexes, Buchwald and Related Ligands, Catalysis, Catalysis and Inorganic Chemistry,
InChI Key   SACNIGZYDTUHKB-UHFFFAOYSA-N
assay   97%
mp   148-151 °C (lit.)
reaction suitability   reagent type: ligand
reaction type: Arylations
  reagent type: ligand
reaction type: Buchwald-Hartwig Cross Coupling Reaction
  reagent type: ligand
reaction type: Carboxylations
  reagent type: ligand
reaction type: Decarboxylations

Description

General description

tBuXPhos [2-Di-tert-butylphosphino-2′,4′,6′-triisopropylbiphenyl] is an air-stable, electron-rich biaryl phosphine ligand developed by the Buchwald group to enhance the reactivity of palladium catalysis during cross-coupling reactions.

Application

tBuXPhos has been used in the preparation of [tBuXPhosAu(MeCN)]BAr4F, a gold catalyst for the intermolecular [2+2] cycloaddition of terminal arylalkynes with substituted alkenes to form functionalized cyclobutenes with high regioselectivity.

tBuXPhos is a ligand for Pd-catalyzed C-O and C-N bond formation.
It can be used in the following reactions:
• Palladium-catalyzed Tsuji-Trost substitution and cross-coupling of benzylic fluorides.
• Palladium-catalyzed C-N cross-coupling of sulfinamides and aryl halides.
• Palladium-catalyzed rapid methoxylation and deuteriomethoxylation of bromo-chalcones.

Packaging

1, 5, 25, 100, 500 g in glass bottle

Legal Information

Usage subject to Patents: EP 1097158; JP 5758844; CA 2336691

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3

Documents

Certificate of Analysis

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Certificate of Origin

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Protocols & Articles

Articles

Buchwald Phosphine Ligands - Technical Article

Over the past several years, the Buchwald group has developed a series of bulky electron-rich phosphines that have garnered much attention for their ability to effect various C–C, C–N, and C–O bond f...
Keywords: Aldrichimica Acta, Arylations, C-X bond formation, Catalysis, Chemfiles, Coupling reactions, Ligands, Methods, Type

Buchwald Phosphine Ligands

Sigma-Aldrich is pleased to offer an array of phosphines for C-C, C-N, and C-O bond formation.
ChemFiles Volume 4 Article 2
Keywords: Amidations, Aminations, Applications, Arylations, Catalysis, Coupling reactions, Cross couplings, Ligands, Organic synthesis, Sonogashira Coupling, Suzuki-Miyaura coupling

Stephen Buchwald Group – Professor Product Portal

From our library of Articles, Sigma-Aldrich presents Stephen Buchwald Group – Professor Product Portal
Keywords: Aminations, Asymmetric catalysis, Asymmetric synthesis, Catalysis, Coupling reactions, Cross couplings, Fluorinations, Ligands, Solvents, transformation

Related Content

Buchwald Phosphine Ligands - For C-C, C-N, and C-O Bond Formation

For C-C, C-N, and C-O Bond Formation: Over the past several years, the Buchwald group has developed a series of bulky electron-rich phosphines that have garnered much attention for their ability to e...
Keywords: Aldrichimica Acta, Arylations, Catalysis, Chemfiles, Coupling reactions, Ligands, Methods, Type

Buchwald Precatalysts and Ligand Guide

Dialkylbiaryl phospine ligands, and the precatalysts derived from them, are commonly referred to as Buchwald Precatalysts and Ligands. These reagents have developed into a highly valuable class of co...
Keywords: Catalysis, Ligands

Peer-Reviewed Papers
15

References

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