HCID 20188328, compound → (+/-)-1-[2-Hydroxy-2-[4-((methylsulfonyl)amino)phenyl]ethyl]-3-methyl-1H-imidazolium chloride

Participants

Reaction Steps

A solution of 152.3 g (0.463 mole) of 3-methyl-1[2-[4-((methylsulfonyl)amino)phenyl-2-oxoethyl]-1H-imidazolium chloride in 1 L of distilled water and 7.62 g 10% Pd/C catalyst are placed in a 2 L Parr bottle and hydrogenated at 50 psi pressure for ca. 5 hours. Additional H2 is added as needed to maintain 50 psi pressure. The reaction mixture is filtered and the solvent is evaporated by azeotroping with ethanol to provide the title compound, which may be recrystallized from aqueous ethanol.

Provenance & Evidence