期刊
SYNTHETIC COMMUNICATIONS
卷 36, 期 17, 页码 2549-2557出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/00397910600781471
关键词
alkene; diamamonium hydrogen phosphate; Knoevenagel condensation; water
Knoevenagel condensation of various aromatic and heteroaromatic aldehydes with active methylene compounds like methyl and ethyl cyanoacetate, malononitrile, and cyanoacetamide proceeds smoothly with stirring in water in the presence of 4 mol% of diammonium hydrogen phosphate. The reactions were carried out at room temperature in short periods with very simple workup procedure and good to high yields.
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