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638080

Sigma-Aldrich

tBuXPhos

greener alternative

98%

Synonym(s):
tBuXPhos, 2-Di-tert-butylphosphino-2′,4′,6′-triisopropylbiphenyl, t-Bu XPhos, tert-Butyl XPhos
Empirical Formula (Hill Notation):
C29H45P
CAS Number:
Molecular Weight:
424.64
MDL number:
PubChem Substance ID:

Quality Level

Assay

98%

form

solid

reaction suitability

reaction type: Cross Couplings
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

greener alternative product score

old score: 12
new score: 1
Find out more about DOZN™ Scoring

greener alternative product characteristics

Atom Economy
Design for Energy Efficiency
Use of Renewable Feedstocks
Learn more about the Principles of Green Chemistry.

mp

148-151 °C (lit.)

functional group

phosphine

greener alternative category

SMILES string

CC(C)c1cc(C(C)C)c(c(c1)C(C)C)-c2ccccc2P(C(C)(C)C)C(C)(C)C

InChI

1S/C29H45P/c1-19(2)22-17-24(20(3)4)27(25(18-22)21(5)6)23-15-13-14-16-26(23)30(28(7,8)9)29(10,11)12/h13-21H,1-12H3

InChI key

SACNIGZYDTUHKB-UHFFFAOYSA-N

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tBuXPhos 98%

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tBuXPhos

t-BuDavePhos

Sigma-Aldrich

695874

t-BuDavePhos

assay

98%

assay

95%

assay

95%

assay

-

form

solid

form

powder or crystals

form

powder or crystals

form

solid

reaction suitability

reaction type: Cross Couplings, 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

reaction suitability

reaction type: Buchwald-Hartwig Cross Coupling Reaction, reaction type: Heck Reaction, reaction type: Hiyama Coupling, reaction type: Negishi Coupling, reaction type: Sonogashira Coupling, reaction type: Stille Coupling, reaction type: Suzuki-Miyaura Coupling, reagent type: ligand

reaction suitability

reaction type: Buchwald-Hartwig Cross Coupling Reaction, reaction type: Heck Reaction, reaction type: Hiyama Coupling, reaction type: Negishi Coupling, reaction type: Sonogashira Coupling, reaction type: Stille Coupling, reaction type: Suzuki-Miyaura Coupling, reagent type: ligand

reaction suitability

-

mp

148-151 °C (lit.)

mp

148-151 °C (lit.), 150 °C

mp

148-151 °C (lit.), 150 °C

mp

114-118 °C

functional group

phosphine

functional group

phosphine

functional group

phosphine

functional group

phosphine

Quality Level

300

Quality Level

-

Quality Level

-

Quality Level

100

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.
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 “Atom Economy”, “Use of Renewable Feedstock” and “Design for Energy Efficiency”. Click here to view its DOZN scorecard.

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.

Legal Information

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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