[摘要]：(Heterocyclic Compounds (More Than One Hetero Atom)) Section The alkylation reaction of methimazole (2-mercapto-1-methylimidazole) with iodoethane and 1-chlorobutane produced the corresponding S-alkylmethimazole halides which were subjected to anion metathesis with two different metal salts (MA) to afford methimazole-based room-temp. ionic liqs. in 82-87% yields. The formation of S-alkylated products suggests that methimazole reacts through the thione tautomer.
