Knoevenagel condensation reaction of aromatic aldehydes with active methylene compounds like ethyl cyanoacetate(or malononitrile) proceeds smoothly in water in the presence of 8mol% of diammonium hydrogen phosphate an...Knoevenagel condensation reaction of aromatic aldehydes with active methylene compounds like ethyl cyanoacetate(or malononitrile) proceeds smoothly in water in the presence of 8mol% of diammonium hydrogen phosphate and 2mol% TEBA.The reactions were carried out at room temperature with very simple workup procedure and high yields.展开更多
文摘Knoevenagel condensation reaction of aromatic aldehydes with active methylene compounds like ethyl cyanoacetate(or malononitrile) proceeds smoothly in water in the presence of 8mol% of diammonium hydrogen phosphate and 2mol% TEBA.The reactions were carried out at room temperature with very simple workup procedure and high yields.