Name is 1,3-Dimethyl-1H-benzo[d]imidazol-3-ium iodide, as a common heterocyclic compound, it belongs to chiral-catalyst compound, and cas is 7181-87-5, its synthesis route is as follows.,7181-87-5
A 20 mL of freshly dried THF was added to a mixture of Me2-bimy¡¤HI (0.40 g, 1.46 mmol) and KOtBu (0.13 g, 1.17 mmol), and the mixture was stirred in an ice-water bath for 2 h. The resulting dark yellow solution was filtered and removed under vacuum. The residue was washed with n-hexane several times and then 1,3-dimethylbenzimidazol-2-ylidene (Me2-bimy) was obtained (0.10 g, 0.68 mmol). A 15 mL THF was added to a mixture of [TeFe3(CO)9{Cu(MeCN)}2] (0.26 g, 0.34 mmol) and Me2-bimy (0.10 g, 0.68 mmol) in an ice-water bath, which was stirred for 15 min. The resulting solution was filtered, and the solvent was removed under vacuum. The residue was washed with deionized water and n-hexane several times and then extracted with Et2O to give a purplish-brown solution which was recrystallized with Et2O/CH2Cl2 to give [TeFe3(CO)9{Cu(Me2-bimy)}2] (1) as a purplish-black solid (0.154 g, 0.159 mmol, 47% based on [TeFe3(CO)9{Cu(MeCN)}2]). IR (nuCO, CH2Cl2): 2033 (m), 1976 (vs), 1920 (m), 1875 (w) cm-1. 1H NMR (500 MHz, DMSO-d6, 300 K, ppm): delta 7.69 (dd, 4H, Ar-H), 7.43 (dd, 4H, Ar-H), 4.02 (s, 12H; CH3).
With the complex challenges of chemical substances, we look forward to future research findings about 1,3-Dimethyl-1H-benzo[d]imidazol-3-ium iodide
Reference£º
Article; Shieh, Minghuey; Liu, Yu-Hsin; Li, Yu-Huei; Lin, Chien-Nan; Wang, Chih-Chin; Journal of Organometallic Chemistry; vol. 867; (2018); p. 161 – 169;,
Chiral Catalysts
Chiral catalysts – SlideShare