HCID 86737151, compound → HCID 20271788, compound

Participants

Reaction Steps

A mixture of 7 parts of 3-ethyl-4-(4-hydroxyphenyl)-1-(phenylmethyl)-1H-imidazolium bromide and 120 parts of ethanol is hydrogenated at normal pressure and at room temperature with 2 parts of palladium-on-charcoal catalyst 10%. After the calculated amount of hydrogen is taken up, the catalyst is filtered off and the filtrate is evaporated. The oily residue solidifies on scratching in 2-propanone. The product is filtered off and dried, yielding 5 parts of 4-(1-ethyl-1H-imidazol-5-yl)phenol monohydrobromide.

Provenance & Evidence