申请人:Kohjin Co., Ltd.
公开号:US05587515A1
公开(公告)日:1996-12-24
A process for producing N-monosubstituted acrylamides in high yields without forming by-products. The process comprises preparing a .beta.-dialkylamino-(methyl)propionic ester by the reaction of a (meth)-acrylic ester with a specified dialkylamine, converting the formed ester into an N-monosubstituted .beta.-dialkylamino(methyl)propionamide by the reaction thereof with a primary amine in the presence of sodium methoxide, and thermally decomposing the amide under a reduced pressure.
一种在高产率下生产N-单取代丙烯酰胺而不形成副产物的方法。该方法包括通过将(甲)丙烯酸酯与特定二烷基胺反应制备β-二烷基氨基-(甲基)丙酸酯,将形成的酯在存在氧化钠的条件下与一种一级胺反应转化为N-单取代β-二烷基氨基(甲基)丙酰胺,并在减压下热分解该酰胺。