[EN] METHOD FOR THE SYNTHESIS OF N-(PHOSPHONOMETHYL)GLYCINE<br/>[FR] PROCÉDÉ DE SYNTHÈSE DE N-(PHOSPHONOMÉTHYL)GLYCINE
申请人:STRAITMARK HOLDING AG
公开号:WO2014012991A1
公开(公告)日:2014-01-23
The present invention is related to a method for the synthesis of N- (phosphonomethyl)glycine or one of its derivatives selected from the group consisting of its salts, its phosphonate esters, or its phosphonate ester salts, which includes the steps of: • a) forming, in the presence an acid catalyst, a reaction mixture comprising 2,5- diketopiperazine, formaldehyde and a compound comprising one or more P-0-P anhydride moieties, said moieties having one P atom at the oxidation state (+ III) and the other P atom at the oxidation state (+III) or (+V), to form Ν,Ν'- bisphosphonomethyl-2,5-diketopiperazine, its mono- to tetra phosphonate esters, the dehydrated forms of Ν,Ν'- bisphosphonomethyl-2,5-diketopiperazine and the phosphonate esters of its dehydrated forms; • b) hydrolysing said N,N'-bisphosphonomethyl-2,5-diketopiperazine, its dehydrated forms or their phosphonate esters to obtain N- (phosphonomethyl)glycine or one of its derivatives selected from the group consisting of its salts, its phosphonate esters and its phosphonate ester salts.
本发明涉及一种合成N-(膦甲基)甘氨酸或其所选衍生物(包括其盐、膦酸酯或膦酸酯盐)的方法,其中包括以下步骤:
• a)在酸催化剂的存在下,形成反应混合物,该混合物包括2,5-二酮哌嗪、甲醛和一种包含一个或多个P-O-P酐基团的化合物,该酐基团具有一个P原子在氧化状态(+ III)和另一个P原子在氧化状态(+ III)或(+ V),以形成N,N'-双膦甲基-2,5-二酮哌嗪、其单至四膦酸酯、N,N'-双膦甲基-2,5-二酮哌嗪的脱水形式以及其脱水形式的膦酸酯;
• b)水解所述的N,N'-双膦甲基-2,5-二酮哌嗪、其脱水形式或其膦酸酯,以获得N-(膦甲基)甘氨酸或其所选衍生物(包括其盐、膦酸酯和膦酸酯盐)。