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804533

Sigma-Aldrich

2,2′-Bipyrazine

Sinónimos:

2,2′-Bipyrazinyl, 2,2′-Dipyrazinyl

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About This Item

Fórmula empírica (notación de Hill):
C8H6N4
Número de CAS:
10199-00-5
Peso molecular:
158.16
UNSPSC Code:
12161600
NACRES:
NA.22

assay

97%

Quality Level

100

form

powder

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

mp

185-188 °C

InChI

1S/C8H6N4/c1-3-11-7(5-9-1)8-6-10-2-4-12-8/h1-6H

InChI key

DFXNVSIALRDJHY-UHFFFAOYSA-N

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Application

2,2′-Bipyrazine (bpz) can be used as a ligand to synthesize strongly oxidizing photocatalysts. Ruthenium-based homoleptic tris(bipyrazyl) complex [(Ru(bpz)32+] derived from 2,2′-bipyrazine ligand can be used as an effective photocatalyst for oxidatively induced organic transformations. For instance, [(Ru(bpz)32+] is capable of promoting radical cation mediated Diels–Alder cycloadditions, radical thiol-ene couplings, photooxygenation reactions, and [3+2] cycloaddition reactions.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Visible Light Photocatalysis of Radical Cation Diels-Alder Cycloadditions: Preparation of Tris (2, 2?-bipyrazyl) Ruthenium (II) Bis (tetrakis (3, 5-bis (trifluoromethyl) phenyl) borate)
Lies SD, et al.
Organic Syntheses, 93, 178-199 (2003)
An improved procedure for the preparation of Ru (bpz) 3 (PF6) 2 via a high-yielding synthesis of 2, 2?-bipyrazine
Schultz DM, et al.
Beilstein Journal of Organic Chemistry, 11(1), 61-65 (2015)

Contenido relacionado

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.

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