专利号:US-10364262-B2 优先权日:2012-07-17 标 题 :Method for the synthesis of N-phosphonomethyliminodiacetic acid 发明人:DEVAUX ALBERT; BURCK SEBASTIAN; NOTTE PATRICK 权利人:MONSANTO TECHNOLOGY LLC 摘要:A method for synthesis of N-phosphonoalkyliminodiacetic acid or derivatives thereof by forming a reaction mixture having an acid catalyst, a compound of the following general formula R1—CH2—NX—CH2—R2 and a compound having one or more P—O—P anhydride moieties to form a compound having a formula R1—CH2—N(—CH2PO3R32)(—CH2—R2) wherein in R1—CH2—NX—CH2—R2: X is —CH2—OH or —CH2—COOH; R1 and R2 are independently selected from the group consisting of nitrile, C1-C4 alkyl carboxylate, and carboxylic acid for when X is —CH2—OH, or R1 and R2 are both carbonyl groups linked by a hydrogen substituted nitrogen atom or a C1-C4-alkyl substituted nitrogen atom; and R3 is H, an alkyl group, or an aryl group; the anhydride moieties in the P—O—P anhydride compound have one P atom at the oxidation state (+III) and one P atom at the oxidation state (+III) or (+V); and 2) hydrolyzing the mixture to form N-phosphonomethyliminodiacetic acid or one of its derivatives.
专利号:US-10280189-B2 优先权日:2012-07-17 标题:Method for the synthesis of aminoalkylenephosphonic acid 发明人:BURCK SEBASTIAN; LECLERCQ CEDRIC NICOLAS; NOTTE PATRICK 权利人:MONSANTO TECHNOLOGY LLC 摘要: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 HNR 1 R 2 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.
专利号:US-10464958-B2 优先权日:2012-07-17 标题 :Method for the synthesis of alpha-aminoalkylenephosphonic acid 发明人:NOTTE PATRICK; COGELS SAMUEL; BURCK SEBASTIAN 权利人:MONSANTO TECHNOLOGY LLC 摘要:The present invention is related to a new method for the synthesis of alpha-aminoalkylenephosphonic acid or its phosphonate esters comprising the steps of forming a reaction mixture by mixing a P—O—P anhydride moiety comprising compound, having one P-atom at the oxidation state (+III) and the other P-atom at the oxidation state (+III) or (+V), an aminoalkanecarboxylic acid and an acid catalyst, wherein said reaction mixture comprises an equivalent ratio of alpha-aminoalkylene carboxylic acid to P—O—P anhydride moieties of at least 0.2, and recovering the resulting alpha-aminoalkylene phosphonic acid compound or an ester thereof from the reaction mixture.
专利号:US-9150599-B2 优先权日:2012-07-17 标 题 :Method for the synthesis of N-(phosphonomethyl)glycine 发明人:BURCK SEBASTIAN; NOTTE PATRICK 权利人:STRAITMARK HOLDING AG 摘要:A method for the synthesis of N-(phosphonomethyl) glycine or one of its derivatives selected from the group of its salts, its phosphonate esters and its phosphonate ester salts, including the steps of: a) forming a reaction mixture having an acid catalyst, N,N′-bis(carboxymethyl)-2,5-diketopiperazine and a compound having one or more P—O—P anhydride moieties, wherein the moieties have one P atom at the oxidation state (+III) and the other P atom at the oxidation state (+III) or (+V), to form N,N′-bis(phosphonomethyl)-2,5-diketopiperazine, its dehydrated forms or their phosphonate esters; b) hydrolyzing the reaction mixture to form N-(phosphonomethyl)glycine or one of its derivatives selected from the group consisting of its salts, its phosphonate esters and its phosphonate ester salts.
专利号:US-6118022-A 优先权日:1998-09-08 标 题 :Synthesis of phosphonomethyliminodiacetic acid with reduced effluent 发明人:CULLEN BARRY A 权利人:HAMPSHIRE CHEMICAL CORP 摘要:A process for the preparation of phosphonomethylglycine in high yields is disclosed. In accordance with the process of the present invention, alkali metal IDA, such as disodium IDA, is reacted with a strong mineral acid, such as HCl, to convert the salt of IDA to IDA. The IDA is then converted to soluble IDA phosphite salt by the addition of phosphorous acid, and the alkali metal salt of the strong acid is precipitated. The phosphite salt of IDA is phosphonomethylated, such as by the addition of PCl3 and formaldehyde. Optionally, phosphorous trichloride can be hydrolyzed to provide the phosphorous acid source for phosphonomethylation of the phosphite salt.
专利号:US-6365772-B1 优先权日:1995-05-30 标题 :Facile synthesis of phosphonomethylglycine from phosphonomethyliminodiacetic acid 发明人:CULLEN BARRY A; PARKER BRIAN A 权利人:HAMPSHIRE CHEMICAL CORP 摘要:A process for the preparation of phosphonomethylglycine in nearly quantitative yields which eliminates the use of a noble metal co-catalyst and its concomitant problems. The oxygen-containing gas is replaced with the much more chemically active hydrogen peroxide, which in combination with activated carbon, oxidizes the PMIDA to PMG in very high yield. The amount of oxidant allowed to react with PMIDA is a function of the concentration of oxygen in the gaseous reaction products, and is controlled by monitoring that concentration. In another embodiment, the oxidizing agent is an oxygen-containing gas. In either case, the concentration of oxygen in the gaseous reaction product is monitored to determine the end point of the reaction.
摘要:N. E Ockerbloom and A. E. Martell, J. Am. Chem. Soc. 80, 2351 (1958). 摘要:G. Schwarzenbach, H. Ackermann and P. Ruckstuhl, Helv. Chim. Acta 32, 1175 (1949). 参考文献:10.1021/ic011094w 摘要:Mao JG, Clearfield A. Metal carboxylate-phosphonate hybrid layered compounds: synthesis and single crystal structures of novel divalent metal complexes with N-(phosphonomethyl)iminodiacetic acid. Inorg Chem. 2002 May 06;41(9):2319–24. doi: 10.1021/ic011094w.