Synthetic Route of 7181-87-5, An article , which mentions 7181-87-5, molecular formula is C9H11IN2. The compound – 1,3-Dimethyl-1H-benzo[d]imidazol-3-ium iodide played an important role in people’s production and life.
Chemical shifts and coupling constants are reported for seven azole derivatives (imidazoles, triazoles and their benzo derivatives), their quaternary salts and the corresponding dicyanomethylides.The assignment of the heterocyclic carbons is based on couplings with the N-methyl group.Compared with neutral azoles the quaternary salts show irregular effects for the chemical shifts.On the other hand, the 13C chemical shifts of dicyanomethylides are similar to those of N-methyl quaternary salts.
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Reference:
Chiral Catalysts,
Chiral catalysts – SlideShare