An efficient method for Knoevenagel condensation of arenecarbaldehydes with active methylene compounds such as barbituric acid and Meldrum's acid in the presence of gel‐entrapped base catalysts is reported. The method has been extended to the one‐pot synthesis of arylmethylene‐bis[3‐hydroxycyclohex‐2‐en‐1‐one] derivatives from dimedone (=5,5‐dimethylcyclohexane‐1,3‐dione) and arenecarbaldehydes by
对于一种有效的方法的Knoevenagel与活性亚甲基arenecarbaldehydes的缩合化合物如
巴比土酸和麦德鲁姆在凝胶包埋碱催化剂的存在下的酸被报告。该方法已扩展为使用多米诺从
二甲酮(= 5,5-二
甲基环己烷-1,3-二酮)和
芳烃甲醛一锅法合成芳基亚甲基-双[3-羟基环己基-2-烯-1-酮]衍
生物Knoevenagel / Michael反应序列。