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.
通过将丙烯酸酯与α-取代丙烯酸酯(例如甲基丙烯酸酯)在三级有机膦、有机磷三胺、有机膦酸二胺或有机膦酸胺的存在下反应,制备4-取代2-亚甲基戊二酸酯。