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CAS RN: 244187-81-3 | Product Number: B3465

1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene


Purity: >98.0%(T)(HPLC)
Synonyms:
  • IPr
Documents:
1G
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Product Number B3465
Purity / Analysis Method >98.0%(T)(HPLC)
Molecular Formula / Molecular Weight C__2__7H__3__6N__2 = 388.60  
Physical State (20 deg.C) Solid
Storage Temperature 0-10°C
Store Under Inert Gas Store under inert gas
Condition to Avoid Air Sensitive,Moisture Sensitive,Heat Sensitive
CAS RN 244187-81-3
Reaxys Registry Number 8435405
PubChem Substance ID 87561472
MDL Number

MFCD07781991

Specifications
Appearance White to Orange to Green powder to crystal
Purity(HPLC) min. 98.0 area%
Purity(Nonaqueous Titration) min. 98.0 %
Properties (reference)
Melting Point 217 °C
Solubility (soluble in) Methanol
GHS
Pictogram Pictogram
Signal Word Warning
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
Precautionary Statements P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P302 + P352 : IF ON SKIN: Wash with plenty of water.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P362 + P364 : Take off contaminated clothing and wash it before reuse.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
Related Laws:
Transport Information:
HS Number 2933299090
Application
Synthesis of the Pd complex and its activity in cross-coupling reactions

Typical procedure (synthesis of the palladium complex 1): A Schlenk flask is loaded with 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene (2.73 g), bis(2,4-pentanedionato)palladium (1.53 g) and anhydrous dioxane (50 mL). The mixture is stirred at room temperature for 2 h. After that time, 1.25 mL of 4M HCl in dioxane is injected in the solution and the mixture allowed stirring at room temperature for anther 2 h. The solvent is then evaporated in vacuum and diethyl ether is added until no more solid dissolved (20 mL). The solution is filtered and the solid washed with diethyl ether (2 x 10 mL). The solvent is evaporated in vacuum and the powder obtained dried under vacuum to yield 2.85 g (90 %) of the palladium complex 1 as a yellow microcrystalline material.

References


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