Methyl Methanesulfonate → 1-(2-Hydroxyethyl)-2-methylthioimidazoline mesylate

Participants

Reaction Steps

Twenty grams of 1-(2-hydroxyethyl)-2-imidazolinethione and methyl methanesulfonate (12.75 ml) are dissolved in ethyl alcohol (90 mL) and refluxed for 2 hours. The mixture is cooled to room temperature and diluted with t-butyl methyl ether (1 liter). An oil separates which solidifies on keeping the mixture in the freezer at -20° C. for a few days. The solid is then filtered, washed with butyl methyl ether and dried to give 1-(2-hydroxyethyl)-2-methylthioimidazoline mesylate, melting point 78.9°-81.5° C.

Provenance & Evidence