THE HWE REACTION IN SOLID - LIQUID TWO PHASE SYSTEM FOR THE SYNTHESIS OF α,β-UNSATURATED AMIDES
作者:Jordanka Petrova、Snezhana Momchilova、Nikolay G. Vassilev
DOI:10.1080/10426500008045236
日期:2000.1
diethyl ester of 2-amino-2-oxoethylphosphonic acid 1 as well as of diethyl ester of the 2-dimethylamino-2-oxoethylphosphonic acid 2 with some aldehydes and ketones 3 in liquid-solid two phase system is used for the preparation of α,β-unsaturated amides 4, 5. The synthesis is carried out in mild conditions (room temperature, KOH, K2CO3, CaO) in the absence of a catalyst or in the absence of a solvent, and
摘要 2-氨基-2-氧乙基膦酸二乙酯 1 以及 2-二甲氨基-2-氧乙基膦酸二乙酯 2 与一些醛和酮 3 在液体中的荷马-沃兹沃斯-埃蒙斯 (HWE) 反应-固体两相体系用于制备α,β-不饱和酰胺4、5。 合成在温和条件(室温、KOH、K2CO3、CaO)下进行,不存在催化剂或不存在一种溶剂,并导致非常高的(E)立体选择性和高产率的烯酰胺。