| 摘要 |
The present invention relates to a novel process for preparing 4-¢(2-aminoethyl)thiomethyl!-5-methyl imidazole of the formula I and its acid addition salts, characterized as a process for preparing 4-¢(2-aminoethyl)thiomethyl!-5-methyl imidazole of the formula and its acid addition salts, characterized in that a compound of the formula wherein M represents hydrogen or an alkali metal, is reacted with a 2-haloethylamine, wherein halo represents chloro or bromo, in a system consisting of an aqueous solution or a strong base and of an organic phase, at room temperature in the presence of quaternary ammonium or quaternary phosphonium salts as phase transfer catalysts. |
