A method for the synthesis of an aminoalkylenephosphonic acid or its phosphonate esters including the following steps: a) forming, in the presence of an aldehyde or ketone and an acid catalyst, a reaction mixture by mixing a compound having at least one HNR
1
R
2
moiety or a salt thereof, with a compound having one or more P—O—P anhydride moieties, the moieties having one P atom at the oxidation state (+III) and one P atom at the oxidation state (+III) or (+V), wherein the ratio of moles of aldehyde or ketone to N—H moieties is 1 or more and wherein the ratio of N—H moieties to P—O—P anhydride moieties is 0.3 or more, and b) recovering the resulting aminoalkylenephosphonic acid having compound or its phosphonate esters.
一种合成
氨基烷基
膦酸或其
膦酸酯的方法,包括以下步骤:a)在醛或酮和酸催化剂存在下,通过将至少具有一个HNR1R2基团或其盐的化合物与具有一个或多个P-O-P酸酐基团的化合物混合而形成反应混合物,其中该基团具有一个P原子在氧化态(+III),另一个P原子在氧化态(+III)或(+V),其中醛或酮的摩尔比与N-H基团的摩尔比为1或更多,N-H基团与P-O-P酸酐基团的摩尔比为0.3或更多,b)回收所得的
氨基烷基
膦酸化合物或其
膦酸酯。