A facile, efficient and practical method for the one-pot synthesis of 2,4,6-triarylpyridines starting from acetophenones, aryl aldehydes and ammonium acetate by the use of catalytic amounts of 40 % potassium hydroxide in dimethyl sulfoxide is presented. The present methodology offers attractive features such as the ease of workup, short reaction time and good yields of the products and it does not need any complex catalyst.
提出了一种简单、高效且实用的一锅法合成2,4,6-三芳基
吡啶的方法,起始物为
乙酰苯酮、芳基醛和
醋酸铵,使用40%
氢氧化钾的催化量在二甲基亚
硫酰胺中进行。该方法具有许多吸引人的特点,如易于分离、反应时间短、产物产率高,并且不需要任何复杂的催化剂。