申请人:Meiji Seika Kaisha Ltd.
公开号:US04510102A1
公开(公告)日:1985-04-09
Disclosed is a novel process for preparing [(3-amino-3-carboxy)-propyl-1]phosphinic acid derivatives, comprising reacting an alkylalkylphosphonyl halide with a vinylmagnesium halide to form a vinylphosphinic acid derivative, and reacting the vinylphosphinic acid derivative with a Shiff's base to form the aimed product. Also disclosed is a novel intermediate compound formed during the course of the above process, which compound has the general formula: ##STR1## (wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are as defined in the specification).
本发明公开了一种制备[(3-氨基-3-羧基)-丙基-1]膦酸衍生物的新工艺,包括将烷基烷基膦酸酯卤化物与乙烯基镁卤化物反应形成乙烯基膦酸衍生物,再将乙烯基膦酸衍生物与席夫碱反应形成所需产物。本发明还公开了在上述过程中形成的一种新的中间化合物,该化合物的通用式为:##STR1##(其中R.sup.1,R.sup.2,R.sup.3,R.sup.4和R.sup.5如规范中所定义)。