CAS: 6145-31-9; Ethane-1,2-Diyldiphosphonic Acid

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CAS号995-32-4 亚乙基二磷酸四乙酯 | CAS号64630-16-6 tetra-iso-propy... | CAS号7647-01-0 盐酸 | CAS号42451-26-3 ethylenebis(phe... | CAS号5927-50-4 四甲基乙二膦酸

📜Tetra(Beta-Chloroethyl) Ethylene Bisphosphonate置于盐酸体系中,化学反应生成 1,2-乙烯基二膦酸
参考文献:Shner,S.M. Et Al.,Journal Of General Chemistry Of The Ussr,1967,Vol. 37,# 2,P. 390-392
标题:Shner,S.M. Et Al.,Journal Of General Chemistry Of The Ussr,1967,Vol. 37,# 2,P. 390-392

专利信息

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-4345100-A
优先权日:1980-01-22
标题 :Preparation of α-ketocarboxylic acid N-tert.-butylamides
发明人：BONSE GERHARD; BLANK HEINZ U
权利人:BAYER AG
摘要:A process for the preparation of an α-ketocarboxylic acid N-tert.-butylamide of the formula n n R--CO--CO--NH--C(CH.sub.3).sub.3 n n in which n R is an aliphatic radical with up to 8 carbon atoms, a cycloalkyl radical with 3 to 6 carbon atoms, a phenyl or naphthyl radical or a heterocyclic radical, n comprising reacting an acyl cyanide of the formula n n R--CO--CN n n with tert.-butyl methyl ether of the formula n n (CH.sub.3).sub.3 C--O--CH.sub.3 n n at a temperature between about 0° and 80° C. in the presence of an acid which is capable of activating the ether of formula (III) under the reaction conditions to give a tert.-butyl carbonium ion, and then hydrolyzing the reaction mixture. Advantageously the acyl cyanide is pivaloyl cyanide or benzoyl cyanide and is reacted with an approximately equimolar amount of the ether in the presence of about 1.1 to 1.5 times the molar amount of concentrated sulphuric acid as the activating acid. The products are useful as intermediates in the synthesis of known herbicides.

专利号:US-2011318421-A1
优先权日:2010-06-24
标 题:Surface functionalized ceramic nanoparticles
发明人：PARSONAGE EDWARD
权利人:PARSONAGE EDWARD
摘要:The present disclosure is directed to surface functionalized ceramic nanoparticles. The method for producing the surface functionalized ceramic nanoparticles generally includes at least four distinct steps: 1) synthesis of an amphiphilic surfactant having the desired surface functionality, 2) formation of mixed solvent microstructured solution with the surfactant, 3) synthesis of the desired ceramic within the microstructured solution, and 4) chemical attachment of the surfactant to the ceramic nanoparticle. The composition of the surface functionalized nanoparticle comprises a lipophilic component, a hydrophilic component, a chelating agent and a ceramic forming component.

专利号:US-2018346497-A1
优先权日:2012-07-17
标 题:Method for the synthesis of alpha-aminoalkylenephosphonic acid

专利号:US-7511113-B2
优先权日:2002-04-26
标题:Oligomeric hydroxy arylether phthalonitiles and synthesis thereof
发明人：KELLER TEDDY M; DOMINGUEZ DAWN D
权利人:US NAVY
摘要:An aromatic ether oligomer or polyaromatic ether comprising the formula:n n O—Ar n ;n nwherein Ar is an independently selected divalent aromatic radical; formed by reacting a dihydroxyaromatic with a dihaloaromatic; and wherein the reaction is performed in the presence of a copper compound and cesium carbonate. The polyaromatic ether is formed when neither the dihydroxyaromatic nor the dihaloaromatic is present in an excess amount. The aromatic ether oligomer is formed by using an excess of either dihydroxyaromatic or dihaloaromatic. A phthalonitrile monomer comprising the formula:n n nformed by reacting a 3- or 4-nitrophthalonitrile with a hydroxy-terminated aromatic ether oligomer. A thermoset formed by curing the phthalonitrile monomer. Processes for forming all the above.

专利号:US-6583315-B2
优先权日:2000-12-23
标 题:Process for preparing ethanebis(alkylphosphinic) acids
发明人：SICKEN MARTIN; WEFERLING NORBERT; SCHMITZ HANS-PETER
权利人:CLARIANT GMBH
摘要:The invention relates to a process for preparing ethanebis(alkylphosphinic) acids by n a) reacting elemental yellow phosphorus with alkyl halides in the presence of alkali metal hydroxide or of alkaline earth metal hydroxide to give a mixture whose main constituents are the alkali metal salts and/or alkaline earth metal salts of alkylphosphonous, phosphorous, and hypophosphorous acid, n b) liberating alkylphosphonous, phosphorous, and hypophosphorous acid by adding mineral acids, and also at the same time precipitating the alkali metal ions and, respectively, alkaline earth metal ions in the form of their salt of the mineral acids, and then n c) esterifying the alkylphosphonous acid from the mixture of the alkylphosphonous, phosphorous, and hypophosphorous acid, n d) isolating the ester of alkylphosphonous acid from the mixture and hydrolyzing the same to give alkylphosphonous acid, and n e) preparing, from the alkylphosphonous acid, the corresponding ethanebis(alkylphosphinic) acid of the general formula (I) where R 1 and R 2 may be identical or different and are hydrogen, a carboxy group, a carboxylic acid derivative, an unsubstituted or substituted alkyl group having from 1 to 10 carbon atoms, phenyl, benzyl, or alkyl-substituted aromatics, and R 3 and R 4 are identical or different and are an unsubstituted or substituted alkyl group having from 2 to 20 carbon atoms, by free-radical-initiated reaction with alkynes, and also to the use of the ethanebis(alkylphosphinic) acids prepared by this process as starting material for preparing flame retardants and precursors for the synthesis of other phosphorus-containing compounds.