CAS: 40465-66-5; Glyphosate-Monoammonium

主要参考文献

参考标题: Method For The Synthesis Of N-(Phosphonomethyl)Glycine Procédé De Synthèse De N-(Phosphonométhyl)Glycine
摘要: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.