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Merck

900533

Sigma-Aldrich

(t-Bu)PhCPhos Pd G4

95%

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About This Item

Fórmula empírica (notación de Hill):
C40H48N3O3PPdS
Número de CAS:
Peso molecular:
788.29
UNSPSC Code:
12161600
NACRES:
NA.22

Quality Level

assay

95%

form

powder or crystals

feature

generation 4

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

functional group

phosphine

SMILES string

O=S(=O)([O-][Pd+2]1([C-]=2C=CC=CC2C=3C=CC=CC3[NH]1C)[P](C=4C=CC=CC4)(C5=CC=CC=C5C=6C(=CC=CC6N(C)C)N(C)C)C(C)(C)C)C

InChI

InChI=1S/C26H33N2P.C13H12N.CH4O3S.Pd/c1-26(2,3)29(20-14-9-8-10-15-20)24-19-12-11-16-21(24)25-22(27(4)5)17-13-18-23(25)28(6)7;1-14-13-10-6-5-9-12(13)11-7-3-2-4-8-11;1-5(2,3)4;/h8-19H,1-7H3;2-7,9-10,14H,1H3;1H3,(H,2,3,4);/q;-1;;+2/p-1

Application

A fourth generation (G4) Buchwald precatalyst that is similar to the third generation (G3) precatalysts except that the amino group on the biphenyl backbone is methylated. This modification helps to prevent the limitations found when using the third generation precatalysts. It is air, moisture, and thermally-stable and shows good solubility in common organic solvents.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Visite la Librería de documentos

Nathaniel H Park et al.
Angewandte Chemie (International ed. in English), 54(28), 8259-8262 (2015-06-03)
In Pd-catalyzed C-N cross-coupling reactions, α-branched secondary amines are difficult coupling partners and the desired products are often produced in low yields. In order to provide a robust method for accessing N-aryl α-branched tertiary amines, new catalysts have been designed

Artículos

G3 and G4 Buchwald palladium precatalysts are the newest air, moisture, and thermally stable crossing-coupling complexes used in bond formation for their versatility and high reactivity.

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