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907111

Sigma-Aldrich

2,6-bis(N-pyrazolyl)pyridine nickel(II) bromide

Sinônimo(s):

(bpp)NiBr2

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About This Item

Fórmula empírica (Notação de Hill):
C11H9Br2N5Ni
Número CAS:
1132833-41-0
Peso molecular:
429.72
Código UNSPSC:
12352101
NACRES:
NA.22

forma

powder or crystals

adequação da reação

reagent type: catalyst
reaction type: Cross Couplings

pf

>300 °C

Aplicação

Precatalyst for alkyl-alkyl cross-coupling; reductive cross-coupling of styrenyl aziridines, dialkyl ether formation, reductive amination.

Outras notas

Ni-Catalyzed Carbon-Carbon Bond-Forming Reductive Amination

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Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Certificados de análise (COA)

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Christoph Heinz et al.
Journal of the American Chemical Society, 140(6), 2292-2300 (2018-01-18)
This report describes a three-component, Ni-catalyzed reductive coupling that enables the convergent synthesis of tertiary benzhydryl amines, which are challenging to access by traditional reductive amination methodologies. The reaction makes use of iminium ions generated in situ from the condensation

Conteúdo relacionado

Doyle Group – Professor Product Portal

Research in the Doyle group focuses on two areas: nucleophilic fluorination and nickel catalysis. The Doyle group has developed several reagents that advance these research areas. In fluorination, 2-pyridinesulfonyl fluoride (PyFluor) can be used for the mild deoxyfluorination of primary and secondary alcohols, a procedure which is normally accomplished by the sensitive reagent DAST. In nickel catalysis, the Doyle group has developed a modular, air-stable nickel precatalyst, [(TMEDA)Ni(o-tolyl)Cl], which has broad utility for a wide variety of reactions. This precatalyst can be used in place of Ni(cod)2, NiCl2, as well as other reported precatalysts. Doyle has also reported electron-deficient olefin ligands as a new class of ligand for accelerated reductive elimination. In particular, the sultam-derived ligand Fro-DO has been found to be critical for high yields in the cross-coupling of tertiary aziridines to form quaternary centers.

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