718750

Sigma-Aldrich

BrettPhos Pd G1, Methyl t-Butyl Ether Adduct

may contain up to 1 mole equivalent of MTBE, 97%

Synonym(s):
BrettPhos Palladacycle, Chloro[2-(dicyclohexylphosphino)-3,6-dimethoxy-2′,4′, 6′-triisopropyl-1,1′-biphenyl][2-(2-aminoethyl)phenyl]palladium(II), BrettPhos precatalyst, (BrettPhos) palladium(II) phenethylamine chloride
Empirical Formula (Hill Notation):
C43H63ClNO2PPd
Molecular Weight:
798.81
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

97%

feature

generation 1

reaction suitability

core: palladium
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: catalyst
reaction type: Cross Couplings

mp

198-204 °C

functional group

phosphine

SMILES string

COC(C)(C)C.NCCc1ccccc1[Pd]Cl.COc2ccc(OC)c(c2P(C3CCCCC3)C4CCCCC4)-c5c(cc(cc5C(C)C)C(C)C)C(C)C

InChI

1S/C35H53O2P.C8H10N.C5H12O.ClH.Pd/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;9-7-6-8-4-2-1-3-5-8;1-5(2,3)6-4;;/h19-25,27-28H,9-18H2,1-8H3;1-4H,6-7,9H2;1-4H3;1H;/q;;;;+1/p-1

Inchi Key

OWHWOTGYDWMPCA-UHFFFAOYSA-M

General description

BrettPhos Pd G1 is a Buchwald first generation (G1) palladacycle precatalyst that can be used in cross-coupling reactions for the formation of C-C, C–N, C–O, C–F, C–CF3, and C–S bonds. The formation of the active Pd(0) species in the G1 precatalyst is easy to generate, requiring merely a deprotonation with a base. The resulting catalyst is very active, even at temperatures down to −40 °C, and can be used in a variety of cross-coupling protocols.

Application

Application Guide for Palladium Catalyzed Cross-Coupling Reactions

Catalyst for:
  • C,N-cross coupling of unprotected 3-halo-2-aminopyridines with primary and secondary amines
  • Amination reaction
  • N-arylation of aminophenols

Packaging

100 mg in glass bottle
1, 5 g in glass bottle

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

hazcat

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

storage_class_code

13 - Non Combustible Solids

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

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...
Ruben Martin et al.
Accounts of chemical research, 41(11), 1461-1473 (2008-07-16)
The cores of many types of polymers, ligands, natural products, and pharmaceuticals contain biaryl or substituted aromatic structures, and efficient methods of synthesizing these structures are crucial to the work of a broad spectrum of organic chemists. Recently, Pd-catalyzed carbon-carbon...
David S Surry et al.
Angewandte Chemie (International ed. in English), 47(34), 6338-6361 (2008-07-30)
Palladium-catalyzed amination reactions of aryl halides have undergone rapid development in the last 12 years, largely driven by the implementation of new classes of ligands. Biaryl phosphanes have proven to provide especially active catalysts in this context. This Review discusses...
Related Content
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.
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