申请人:Henkel & Cie G.m.b.H.
公开号:US03979385A1
公开(公告)日:1976-09-07
A process for the production of 1-aminoalkane-1,1-diphosphonates of the formula ##SPC1## Wherein R.sub.1 is a member selected from the group consisting of hydrogen, lower alkyl and phenyl, R.sub.2 and R.sub. 3 are members selected from the group consisting of hydrogen, alkyl having 1 to 22 carbon atoms, cycloalkyl having 5 to 6 carbon atoms, phenyl, alkylphenyl having 7 to 18 carbon atoms, phenylalkyl having 7 to 18 carbon atoms and together with the nitrogen atom, piperidino, pyrrolidino and morpholino, and X is a member selected from the group consisting of hydrogen, alkali metal, ammonium, pyridinium, guanidinium and mono-, di-, and tri-lower-alkanol-ammonium with the proviso that at least one of R.sub.1, R.sub.2 and R.sub.3 is other than hydrogen, which consists essentially in reacting a phosphorus trihalide selected from the group consisting of phosphosus trichloride and phosphorus tribromide with a monocarboxylic acid amide of the formula ##SPC2## wherein the molecular weight of said carboxylic acid amide is over 46 and R.sub.1, R.sub.2 and R.sub. 3 have the above assigned meanings, at a temperature of from 0.degree. to 75.degree.C, subjecting the resultant reaction product to hydrolysis, and recovering said 1-aminoalkane-1,1-diphosphonates. The 1-aminoalkane-1,1-diphosphonates, some of which are novel, are capable of forming complexes with heavy metals.
一种用于制备式为##SPC1##的1-氨基烷基-1,1-二膦酸盐的工艺,其中R.sub.1是从氢,低碳基和苯基中选择的成员,R.sub.2和R.sub.3是从氢,具有1至22个碳原子的烷基,具有5至6个碳原子的环烷基,苯基,具有7至18个碳原子的烷基苯基,具有7至18个碳原子的苯基烷基和与氮原子一起的哌啶基,吡咯烷基和吗啉基中选择的成员,X是从氢,碱金属,铵盐,吡啶盐,胍盐和单,二,三低碳醇铵盐中选择的成员,但至少有一个R.sub.1,R.sub.2和R.sub.3不是氢,其基本上包括将从磷三卤化物中选择的磷三卤化物,包括磷三氯化物和磷三溴化物与式为##SPC2##的羧酸酰胺反应,其中所述羧酸酰胺的分子量大于46且R.sub.1,R.sub.2和R.sub.3具有上述指定的含义,在0℃至75℃的温度下,将所得的反应产物进行水解,并回收所述的1-氨基烷基-1,1-二膦酸盐。这些1-氨基烷基-1,1-二膦酸盐中的一些是新颖的,能够与重金属形成配合物。