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Merck
Alle Fotos(8)

Dokumente

718742

Sigma-Aldrich

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

greener alternative

98%

Synonym(e):

BrettPhos

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Alle Fotos(8)

About This Item

Empirische Formel (Hill-System):
C35H53O2P
CAS-Nummer:
1070663-78-3
Molekulargewicht:
536.77
MDL-Nummer:
MFCD11973797
UNSPSC-Code:
12352112
PubChem Substanz-ID:
329763602
NACRES:
NA.22

Qualitätsniveau

300

Assay

98%

Form

solid

Eignung der Reaktion

reaction type: Cross Couplings
reagent type: ligand
reaction type: Buchwald-Hartwig Cross Coupling Reaction
reagent type: ligand
reaction type: Fluorinations

Grünere Alternativprodukt-Bewertung

old score: 8
new score: 1
Find out more about DOZN™ Scoring

Grünere Alternativprodukt-Eigenschaften

Waste Prevention
Atom Economy
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

mp (Schmelzpunkt)

187-195 °C

Funktionelle Gruppe

phosphine

Grünere Alternativprodukt-Kategorie

, Re-engineered

SMILES String

COc1c(P(C2CCCCC2)C3CCCCC3)c(c4c(C(C)C)cc(C(C)C)cc4C(C)C)c(OC)cc1

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

InChIKey

WDVGNXKCFBOKDF-UHFFFAOYSA-N

Verwandte Kategorien

Allgemeine Beschreibung

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” and “Design for Energy Efficiency”. Click here to view its DOZN scorecard.

Anwendung

Buchwald Phosphine Ligands for chemical Synthesis
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
For small scale and high throughput uses, product is also available as ChemBeads (928348)

Leistungsmerkmale und Vorteile

  • White crystalline solid
  • Air- and moisture-stable
  • Thermally stable
  • Highly efficient
  • Wide functional group tolerance
  • Excellent selectivity and conversion

Lagerklassenschlüssel

11 - Combustible Solids

WGK

nwg

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Analysenzertifikate (COA)

Suchen Sie nach Analysenzertifikate (COA), indem Sie die Lot-/Chargennummer des Produkts eingeben. Lot- und Chargennummern sind auf dem Produktetikett hinter den Wörtern ‘Lot’ oder ‘Batch’ (Lot oder Charge) zu finden.

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Die Dokumentenbibliothek aufrufen

Facile synthesis of 4-aryl and alkyl substituted, N 6-alkylated pyridazine-3, 6-diamines.
Wlochal J & Bailey A.
Tetrahedron Letters, 56(48), 6791-6794 (2015)
The palladium-catalyzed trifluoromethylation of aryl chlorides.
Cho EJ, et al.
Science, 328(5986), 1679-1681 (2010)
T M Rangarajan et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 20(44), 14218-14225 (2014-09-23)
We report an unprecedented BrettPhos ligand supported Pd-catalyzed CO bond-forming reaction of activated aryl halides with primary fluoroalkyl alcohols. We demonstrate that the Phosphine ligand (BrettPhos) possesses the property of altering the mechanistic pathway of reductive elimination from nucleophile to
Multi-kilo delivery of AMG 925 featuring a Buchwald?Hartwig amination and processing with insoluble synthetic intermediates.
Affouard C, et al.
Organic Process Research & Development, 19(3), 476-485 (2015)
David S Surry et al.
Chemical science, 2(1), 27-50 (2011-01-01)
Dialkylbiaryl phosphines are a valuable class of ligand for Pd-catalyzed amination reactions and have been applied in a range of contexts. This review attempts to aid the reader in the selection of the best choice of reaction conditions and ligand
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Verwandter Inhalt

Buchwald Group – Professor Product Portal

The Buchwald group has developed a series of highly active and versatile palladium precatalysts and biarylphosphine ligands used in cross-coupling reactions for the formation of C-C, C–N, C–O, C–F, C–CF3, and C–S bonds. The ligands are electron-rich, and highly tunable to provide catalyst systems with a diverse scope, high stability and reactivity. Furthermore, the new series of precatalysts are air-, moisture and thermally-stable and display good solubility in common organic solvents. The use of precatalysts ensures the efficient generation of the active catalytic species and allows one to accurately adjust the ligand:palladium ratio. The ligands, precatalysts and methodology developed in the Buchwald group are user friendly and have rendered previously difficult cross couplings reactions, much easier to achieve.

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

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