[EN] METHOD FOR THE SYNTHESIS OF N-PHOSPHONOMETHYLIMINODIACETIC ACID<br/>[FR] PROCÉDÉ DE SYNTHÈSE D'ACIDE N-PHOSPHONOMÉTHYLIMINODIACÉTIQUE
申请人:STRAITMARK HOLDING AG
公开号:WO2014012986A1
公开(公告)日:2014-01-23
The present invention is related to a method for the synthesis of N- phosphonoalkyliminodiacetic acid or derivatives thereof comprising the steps of: a) forming a reaction mixture comprising an acid catalyst, a compound having the general formula R1 -CH2-NX-CH2-R2 and a compound having one or more P-O-P anhydride moieties, to form a compound having the general formula R1 - CH2-N-CH2(P03H2)-CH2-R2, its dehydrated forms or their derivatives, wherein - the compound of the formula R1 -CH2-NX-CH2-R2 is characterized in that: - X is -CH2-OH or -CH2-COOH; - R1 and R2 are independently selected from the group consisting of nitrile, C1 -C4 alkyl carboxylate, or are both carbonyl groups linked by means of a hydrogen substituted nitrogen atom or a C1 -C4- akyl substituted nitrogen atom; - the P-O-P anhydride comprising compound is characterized in that said anhydride moieties comprise one P atom at the oxidation state (+I II ) and one P atom at the oxidation state (+I II ) or (+V); and b) hydrolysing the reaction mixture to form N- phosphonomethyliminodiacetic acid or one of its derivatives.
本发明涉及一种合成N-磷酸基烷基亚乙酸或其衍生物的方法,包括以下步骤:a)形成反应混合物,包括酸催化剂、具有一般式R1-CH2-NX-CH2-R2的化合物和具有一个或多个P-O-P酐基团的化合物,以形成一般式R1-CH2-N-CH2(P03H2)-CH2-R2的化合物、其脱水形式或其衍生物,其中-具有一般式R1-CH2-NX-CH2-R2的化合物的特点是:-X为-CH2-OH或-CH2-COOH;-R1和R2独立地选自由氰基、C1-C4烷基羧酸酯组成的群,或通过氢代氮原子或C1-C4烷基取代的氮原子连接的两个羰基基团;-包含P-O-P酐基团的化合物的特点是,所述酐基团包括一个氧化态为(+I II)的P原子和一个氧化态为(+I II)或(+V)的P原子;b)水解反应混合物以形成N-磷酸基甲基亚乙酸或其衍生物之一。