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 HNR1R2 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
氨基烯基
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,将具有至少一个 HNR1R2 基团的化合物或其盐 与具有一个或多个 P-O-P 酸酐基团的化合物混合,形成反应混合物、这些分子具有一个氧化态为(+III)的P原子和一个氧化态为(+III)或(+V)的P原子,其中醛或酮的摩尔数与N-H分子数之比为1或以上,N-H分子数与P-O-P酸酐分子数之比为0.3 或更多,以及 b) 回收所得的具有化合物或其
膦酸酯的
氨基烷基
膦酸。