The preparation of aryl 1-(2,6-dimethylphenyl)-2-phenyl-4-trifluoromethyl-5-imidazolyl sulfides and sulfones
作者:Roger A. Egolf、Donna M. Bilder
DOI:10.1002/jhet.5570310248
日期:1994.3
A series of aryl 1-(2,6-dimethylphenyl)-2-phenyl-4-trifluoromethyl-5-imidazolyl sulfides was prepared by displacement of fluoride from the 5-position of 1-(2,6-dimethylphenyl)-2-phenyl-4-trifluoromethyl-5-fluoroimidazole by substituted thiophenols and by benzyl mercaptan. This displacement reaction occurs much more slowly than the corresponding previously described reactions of 4-trifluoromethyl-5-fluorothiazoles
通过从1-(2,6-二甲基苯基)-2-的5-位取代氟来制备一系列芳基1-(2,6-二甲基苯基)-2-苯基-4-三氟甲基-5-咪唑基硫醚苯基-4-三氟甲基-5-氟咪唑被取代的硫酚和苄基硫醇所取代。该置换反应发生的速度比前面所述的4-三氟甲基-5-氟噻唑和-恶唑的反应要慢得多。检查了几对溶剂-碱对;当以二甲基亚砜为溶剂,以二氮杂双环十一碳烯为碱时,发现该反应最有效。通过在乙酸中用过氧化氢处理将硫化物氧化成砜。