Potassium Hydroxide → 2-[2-(4-Methoxyphenyl)ethenyl]-1,3-dimethyl-2,3-dihydro-1H-imidazol-1-ium iodide

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Reaction Steps

A mixture of 10 g of 1,2,3-trimethyl-1H-imidazolium iodide, 2.0 g of potassium hydroxide and 10 ml of 4-methoxybenzaldehyde is refluxed in 50 ml of absolute ethanol for 15 minutes during which time a precipitate is formed. The reaction mixture is cooled and the solid is filtered off. Crystallization from absolute ethanol yields 9.1 g of the title compound, melting point 289°-291° C.

Provenance & Evidence