General procedures for the synthesis of 3-substituted 1-alkyloxy,1-arylmethyloxy, and 1-phenyloxyimidazolium salts are described. 1,3-Bis(arylmethyloxy)imidazolium salts can be prepared using phase transfer conditions for the alkylation of 1-hydroxy-1H-imidazole 3-oxides. When the hydroxy group of 1-hydroxy-1H -imidazoles is protected during quaternization, 1-substituted imidazole 3-oxides are obtained.
本文描述了合成3-取代1-烷氧基、1-芳基甲基氧基和1-苯氧基
咪唑鎓盐的一般方法。1,3-双(芳基甲基氧基)
咪唑鎓盐可通过相转移条件制备,用于1-羟基-
1H-咪唑3-氧化物的烷基化。在季
铵化过程中,当1-羟基-
1H-咪唑的羟基被保护时,可获得1-取代的
咪唑3-氧化物。