An improved process for the preparation of 4-(hydroxymethyl)imidazoles by reducing 4-imidazolecarboxylic acid esters using an alkali metal or calcium in liquid ammonia with an additional proton source provided during the reaction or upon workup.
通过在液
氨中使用碱
金属或
钙,同时在反应过程中或处理过程中提供额外的质子源,以还原4-
咪唑羧酸酯制备
4-(羟甲基)咪唑的改进工艺。