1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene
Synonym(s):1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene
- CAS NO.：141556-42-5
- Empirical Formula: C21H24N2**
- Molecular Weight: 304.42866
- MDL number: MFCD09265338
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:55:46
What is 1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene?
The Uses of 1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene
1,3-Bis(2,4,6-trimethylphenyl)-1,3-dihydro-2H-imidazol-2-ylidene (IMes) is a nucleophilic N-heterocyclic carbene (NHC) ligand.
It can be used to synthesize:
- IMes ligated-rhodium complex as a catalyst for the selective hydrogenation of substituted aryl and heteroaryl boronate esters to cis-substituted borylated cycloalkanes.
- IMes/ruthenium complex (Cp*Ru(IMes)Cl)(Cp* =η5-C5Me3) as a catalyst for olefin ring closing metathesis reaction.
IMes is also used as an ancillary ligand in Pd-catalyzed Suzuki-Miyaura cross-coupling reaction between aryl chlorides or aryl triflates and arylboronic acids.
Properties of 1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene
| Melting point: | 140 °C |
| storage temp. | -20°C |
| form | Powder |
| color | white to off-white |
| Sensitive | air sensitive, moisture sensitive |
| InChI | InChI=1S/C21H24N2/c1-14-9-16(3)20(17(4)10-14)22-7-8-23(13-22)21-18(5)11-15(2)12-19(21)6/h7-12H,1-6H3 |
Safety information for 1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H228:Flammable solids H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene
| InChIKey | JCYWCSGERIELPG-UHFFFAOYSA-N |
| SMILES | N1(C=CN(C2C(C)=CC(C)=CC=2C)[C]1)C1=C(C)C=C(C)C=C1C |^3:13| |
1,3-Bis(2,4,6-trimethylphenyl)imidazol-2-ylidene manufacturer
A.J Chemicals
New Delhi
Phone:91-9810153283
Whatsapp: 91-9810153283
product: 1,3-Dimesityl-1,3-dihydro-2H-imidazol-2-ylidene
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