申请人:Rohm and Haas Company
公开号:US04145559A1
公开(公告)日:1979-03-20
Esters of 4-substituted 2-methyleneglutaric acids are prepared by reacting an ester of acrylic acid with an ester of an .alpha.-substituted acrylic acid, such as an ester of methacrylic acid, in the presence of a tertiary organic phosphine, an organic phosphorus triamide, an organic phosphonous diamide, or an organic phosphinous amide.
4-取代的2-亚甲基戊二酸酯是通过在三级有机膦、有机磷三酰胺、有机磷酸二酰胺或有机磷酸亚胺的存在下,将丙烯酸酯与α-取代的丙烯酸酯(如甲基丙烯酸酯)的酯反应制备的。