[EN] METHOD FOR THE SYNTHESIS OF ALKANE-1-HYDROXY-1,1-DIPHOSPHONIC ACID<br/>[FR] PROCÉDÉ DE SYNTHÈSE DE L'ACIDE ALCANE-1-HYDROXY-1,1-DIPHOSPHONIQUE
申请人:STRAITMARK HOLDING AG
公开号:WO2015059287A1
公开(公告)日:2015-04-30
The present invention is related to a new method for the synthesis of alkane-1-hydroxy-,1-diphosphonic acid or its salts which includes the steps of -reacting tetraphosphorus hexaoxide and a carboxylic acid under controlled reaction conditions; -hydrolyzing the formed alkane-1-hydroxy-1,1-diphosphonic acid condensates to form alkane-1-hydroxy-1,1-diphosphonic acid; -precipitating the alkane-1-hydroxy-1,1-diphosphonic acid through the use of a suitable solvent; -filtering the alkane-1-hydroxy-1,1-diphosphonic acid and recovering the mother liquor and the suitable solvent.1 The process according to the method of the present invention is highly controllable and is further characterized by a high selectivity.
本发明涉及一种合成烷基-1-羟基-1,1-二膦酸或其盐的新方法,包括以下步骤:-在控制的反应条件下,将四磷六氧化物和羧酸反应;-水解形成的烷基-1-羟基-1,1-二膦酸缩聚物以形成烷基-1-羟基-1,1-二膦酸;-通过使用适当的溶剂沉淀烷基-1-羟基-1,1-二膦酸;-过滤烷基-1-羟基-1,1-二膦酸并回收母液和适当的溶剂。根据本发明的方法,该过程具有高度可控性,并且具有高选择性。