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928348

Sigma-Aldrich

BrettPhos ChemBeads

Synonym(s):

2-(Dicyclohexylphosphino)3,6-dimethoxy-2′,4′,6′-triisopropyl-1,1′-biphenyl

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About This Item

Empirical Formula (Hill Notation):
C35H53O2P
CAS Number:
Molecular Weight:
536.77
MDL number:
UNSPSC Code:
12352112
NACRES:
NA.82

form

solid

Quality Level

composition

~ 5 wt.% loading of catalyst

reaction suitability

reagent type: catalyst
reaction type: Cross Couplings

InChI

1S/C35H53O2P/c1-23(2)26-21-29(24(3)4)33(30(22-26)25(5)6)34-31(36-7)19-20-32(37-8)35(34)38(27-15-11-9-12-16-27)28-17-13-10-14-18-28/h19-25,27-28H,9-18H2,1-8H3

InChI key

WDVGNXKCFBOKDF-UHFFFAOYSA-N

Application

BrettPhos is a dialkylbiaryl phosphine ligand developed by the Buchwald group. It promotes cross-coupling reactions more efficiently and exhibits improved reactivity compared to other catalytic systems.


It can be used in:
  • palladium-catalyzed trifluoromethylation of aryl chlorides
  • Buchwald-Hartwig amination
  • synthesis of 4-aryl and alkyl substituted, N6-alkylated pyridazine-3,6-diamines via a Buchwald protocol
ChemBeads are chemical coated glass beads. ChemBeads offer improved flowability and chemical uniformity perfect for automated solid dispensing and high-throughput experimentation. The method of creating ChemBeads uses no other chemicals or surfactants allowing the user to accurately dispense sub-milligram amounts of chemical.

Learn more about ChemBeads products

For larger scale uses, product also available in powdered form (718742)

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Hazard Classifications

Carc. 1B Inhalation

WGK

WGK 1

Regulatory Information

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ChemBeads, catalyst-coated glass beads, dispense solid chemical reagents for nanomole-scale high-throughput reaction screening.

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