1,3-Dimethyl-1H-benzo[d]imidazol-3-ium iodide

Into a 25 ml Schlenk tube was layered 1H-benzo[d]imidazole (1g, 8.5 mmol), K2CO3 (1.18g, 8.5mmol), MeI (2.1 mL, 33mmol), CH3CN (15 mL), sealed and evacuated and refilled with nitrogen atmosphere. The mixture was stirred and heated under pre-heated 83 °C oil-bath for 18 hours. after finished, the reaction solution was quickly filtrated (white product could instant), the filtrate was cooled in ice-cool water, and white crystal was formed, collected the crystal through filtrated, washed with PE, dried under reduce pressure, afforded the desired NHC Precursor J (1.3 g, 56percent).

Molecular Weight:274.10
Hydrogen Bond Acceptor Count:1
Exact Mass:273.99670
Monoisotopic Mass:273.99670
Topological Polar Surface Area:8.8
Heavy Atom Count:12
Complexity:131
Covalently-Bonded Unit Count:2
Compound Is Canonicalized:Yes