申请人:MONSANTO TECHNOLOGY LLC
公开号:US10280189B2
公开(公告)日:2019-05-07
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。