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1,3-Bis(2,4,6-trimethylphenyl)imidazolinium Chloride
(CAS RN:173035-10-4 Product Number:B3158)


1,3-Bis(2,4,6-trimethylphenyl)imidazolinium Chloride
Synonym SIMes·HCl

General Information

Product Number B3158

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Purity/Analysis Method >98.0%(HPLC)(T)
Storage Temperature
M.F. / M.W. C21H27ClN2=342.91
CAS RN 173035-10-4
Related CAS RN
MDL Number MFCD09039279
Packaging and Container
  • Product Details
  • Safety & Regulations


Purity(HPLC) min. 98.0 area%
Purity(Nonaqueous Titration) min. 98.0 %


Reaxys-RN 7455488
PubChem SID 87560276


Signal Word Warning
Hazard Statements
  • H315
  • :Causes skin irritation.
  • H319
  • :Causes serious eye irritation.
Precautionary Statements
  • P264
  • :Wash hands and face thoroughly after handling.
  • P280
  • :Wear protective gloves, eye protection.
  • P302+P352+P332+P313+P362+P364
  • :IF ON SKIN: Wash with plenty of water. If skin irritation occurs: Get medical advice or attention. Take off contaminated clothing and wash it before reuse.
  • P305+P351+P338+P337+P313
  • :IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice or attention.

Transport Information

HS Number 2933299090


Reduction of carbon dioxide to carbon monoxide using N-heterocyclic carbenes (NHCs)

Typical procedure: 1,3-bis(2,4,6-trimethylphenyl)imidazolinium chloride (17 mg), dried potassium carbonate (138.2 mg) and DMSO (1 mL) are added into a dry reaction tube (10 mL). The mixture is stirred at room temperature for 1 h to generate the carbene, which is then reacted with carbon dioxide (in balloon). After the mixture is stirred for 2 h at room temperature, trans-cinnamaldehyde (62 micro-L) is added into the mixture. Then the reaction mixture is stirred for 4 days at room temperature, and quenched with HCl solution (1 M, 4 mL). The quenched mixture is extracted with ethyl acetate (3 x 4 mL). The combined organic layers are washed with brine (5 mL), dried over Na2SO4 and filtered. The solution is concentrated in vacuo to give crude trans-cinnamic acid in 95% yield (determined by the 1H NMR based on cinnamaldehyde). The residual gas in the balloon is analyzed by GC to determine the concentration of CO in the mixture. The CO concentration in the mixture is consistent with the yield of trans-cinnamic acid.


Selective arylation of benzaldehyde derivatives


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