亚硝酰氯置于silver Hyponitrite体系中,用 Neat (No Solvent) 用作溶剂,化学反应生成氧化亚氮 参考文献:Perrot,R.,Comptes Rendus Hebdomadaires Des Seances De L'Academie Des Sciences,1935,Vol. 201,P. 275-277 标题:Perrot,R.,Comptes Rendus Hebdomadaires Des Seances De L'Academie Des Sciences,1935,Vol. 201,P. 275-277
专利信息
专利号:US-6794534-B2 优先权日:2000-06-23 标题:Synthesis of functionalized and unfunctionalized olefins via cross and ring-closing metathesis 发明人:GRUBBS ROBERT H; CHATTERJEE ARNAB K; MORGAN JOHN P; SCHOLL MATTHIAS; CHOI TAE-LIM 权利人:CALIFORNIA INST OF TECHN 摘要:The invention is directed to the cross-metathesis and ring-closing metathesis reactions between geminal disubstituted olefins and terminal olefins, wherein the reaction employs a Ruthenium or Osmium metal carbene complex. Specifically, the invention relates to the synthesis of α-functionalized or unfunctionalized olefins via intermolecular cross-metathesis and intramolecular ring-closing metathesis using a ruthenium alkylidene complex. The catalysts preferably used in the invention are of the general formula n wherein: n M is ruthenium or osmium; n X and X 1 are each independently an anionic ligand; n L is a neutral electron donor ligand; and, n R, R 1 R 6 , R 7 , R 8 , and R 9 are each independently hydrogen or a substituent selected from the group consisting of C 1 -C 20 alkyl, C 2 -C 20 alkenyl, C 2 -C 20 alkynyl, aryl, C 1 -C 20 carboxylate, C 1 -C 20 alkoxy, C 2 -C 20 alkenyloxy, C 2 -C 20 alkynyloxy, aryloxy, C 2 -C 20 alkoxycarbonyl, C 1 -C 20 alkylthio, C 1 -C 20 alkylsulfonyl and C 1 -C 20 alkylsulfinyl.
专利号:US-2014255263-A1 优先权日:2011-08-17 标题:Apparatus for the liquid-phase synthesis of isoprene from isobutylene and formaldehyde 发明人:DYKMAN ARKADII SAMUILOVICH; SIBAGATULLIN GAMIL GABDRAHMANOVICH; FEDORCOVA ELENA VLADIMIROVNA; FLEGONTOV ALEKSEI MICHAILOVICH 权利人:DYKMAN ARKADII SAMUILOVICH; SIBAGATULLIN GAMIL GABDRAHMANOVICH; FEDORCOVA ELENA VLADIMIROVNA; FLEGONTOV ALEKSEI MICHAILOVICH; OBSHESTVO S OGRANICHENNOI OTVETSTVENNOSTIU NP OB EUROCHIM 摘要:The apparatus for liquid-phase synthesis of isoprene from isobutylene and formaldehyde, comprising the following units of synthesis of isoprene precursors: 1,3-dioxanes synthesis unit; unit for TMC synthesis from isobutylene-containing fraction; unit for TMC synthesis from recycled concentrated isobutylene derived either from isoprene synthesis unit or from the unit for synthesis products separation and isoprene monomer isolation; isoprene synthesis unit; by-products decomposition unit; unit for synthesis products separation and isoprene monomer isolation. The apparatus is characterized with separation of by-product fractions from 1,3-dioxanes synthesis unit; with assignment of light fraction for sale or its supply for combined decomposition with the by-products (MDHP fraction), formed during separation of synthesis products and isolation of isoprene monomer; with assignment of heavy fraction for sale, at that TMC and 1,3-dioxanes that were formed in the corresponding units are simultaneously supplied for combined decomposition to isoprene synthesis unit while the unit for separation of synthesis products and isolation of isoprene monomer is directly connected with isoprene synthesis unit, by-products decomposition unit as well as with the unit for TMC synthesis from recycled concentrated isobutylene. The apparatus is also characterized by the following: 1,3-dioxanes synthesis unit includes by-products separation into light, medium and heavy fractions, from which the light fraction of by-products is fed for homogenous decomposition to isoprene synthesis unit and/or to by-products decomposition unit for combined decomposition with the by-products (MDHP fraction) formed during separation of synthesis products and isolation of isoprene monomer; the medium fraction of by-products is assigned for sale and/or mixed with the light fraction of by-products and supplied to by-products decomposition unit; and unreacted isobutylene from the unit of TMC synthesis from recycled concentrated isobutylene is supplied to the unit of TMC synthesis from isobutylene-containing fraction, being previously mixed.
专利号:WO-2013138200-A1 优先权日:2012-03-13 标 题 :Green chemistry synthesis of the malaria drug amodiaquine and analogs thereof 发明人:FORTUNAK JOSEPH MARIAN; KULKARNI AMOL ANANT; KING CHRISTOPHER 权利人:UNIV HOWARD 摘要:Methods are provided for a green chemistry one-pot synthesis of amodiaquine and amodiaquine analogs. The methods have a lower environmental impact, lower investment cost, reduced amounts of byproducts and impurities, and a shorter synthesis time, compared to current conventional synthesis methods. The methods reduce the total number of steps in the synthesis from four to five down to two, thereby simplifying production; and allow a reduced number of solvents and reagents to be used in production, thereby reducing the waste generated in the synthesis. The methods can reduce the waste to about 3-5 kilograms of waste generated per kilogram of product produced; and surprisingly improve the overall yield from 60-65% to greater than 90% as compared to the current conventional synthesis methods for amodiaquine and its analogs.
专利号:WO-2009082260-A1 优先权日:2007-12-21 标 题 :Plant for the liquid phase synthesis of isoprene from isobutylene and formaldehyde 发明人:BUSYGIN VLADIMIR MIKHAILOVICH; DYKMAN ARKADIY SAMUILOVICH; GILMANOV KHAMIT KHAMISOVICH; POLYAKOV SERGEY ALEKSANDROVICH; FLEGONTOV ALEKSEY MICHAYLOVICH; FEDORCOVA ELENA VLADIMIROVNA 权利人:OBSHESTVO O OGRANICHENNOI OTVE 摘要:The invention relates to a plant for the synthesis of isoprene in a liquid phase from isobutylene and formaldehyde or from the source substances thereof. The inventive plant consists of a dimethyl dioxane synthesis unit detached from two parallel operating trimethyl carbinol synthesis units, and the trimethyl carbinol and dimethyl dioxane produced therein are simultaneously supplied for common decomposition to an isoprene synthesis unit. Light by-products extracted in a unit for rectifying high-boiling by-products, which unit is located downstream of the dimethyl dioxane synthesis unit, are supplied either to sales or to decomposition together with by-products (methyl-dihydropyrane fraction ) which are produced during end-products separation and isoprene monomer extraction, or to sales and to a decomposition unit for decomposition together with the above-mentioned by-products (methyl-dihydropirane fraction), afterwards to the end-product separation and isoprene monomer extraction unit. The end-product separation and isoprene monomer extraction unit is directly connected to the soprene synthesis unit, the decomposition unit and to the dimethyl dioxane synthesis unit. Said plant makes it possible to reduce the accumulation of high-boiling by-products, to decrese the production costs and to improve the engineering-and-economical performances of the process.
专利号:US-2022411943-A1 优先权日:2021-06-23 标 题 :Process for the Electrochemical Synthesis of Green Urea, an Electrochemical Cell for the Electrochemical Synthesis of Green Urea and the Green Urea Produced Thereby 发明人:GHORAI UTTAM KUMAR; MUKHERJEE Jit; PAUL SOURAV; ADALDER ASHADUL 权利人:GHORAI UTTAM KUMAR; RAMAKRISHNA MISSION VIDYAMANDIRA 摘要:This invention relates to a process for the electrochemical synthesis of green urea, and the urea produced thereby. The electrochemical synthesis of urea involves the reduction of dual purging gases N 2 and CO 2 via six electron transfer process (N 2 +CO 2 +6H + +6e − →CO (NH 2 ) 2 +H 2 O) & reduction of the NO 3 − ions and CO 2 via sixteen electron transfer process (2NO 3 −+CO 2 +18H + +16e − →CO(NH 2 ) 2 +7H 2 O) under ambient condition using copper phthalocyanine (CuPc) catalyst. The binding of two intermediate products during dual reduction simultaneously, leads to the production of urea in water medium under ambient conditions.
专利号:US-2024075466-A1 优先权日:2021-04-09 标 题:One-Pot Synthesis of Transition Metal-Promoted Chabazites 发明人:VAN TENDELOO LEEN; SCHUETZE FRANK-WALTER; VERHEYEN ELKE JANE JUNE 权利人:UMICORE AG & CO KG 摘要:The invention provides methods for a one-pot synthesis of molecular sieves of the CHA-type. The method uses molecular and non-molecular sieves as sources of silicon and aluminum. A first OSDA is selected from tetraethylenepentamine (TEPA) and triethy-lenepentamine (TETA). The synthesis mixture comprises a first metal selected from copper, iron and zinc. Optionally, the synthesis mixture may furthermore comprise a second OSDA and/or a second metal selected from manganese, cesium, magnesium, calcium, strontium, barium, yttrium, titanium, zirconium, niobium, iron, zinc, silver, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and mixtures thereof. The molecular sieves of the CHA-type obtainable by the method can be used as SCR-catalytically active substances for the removal of nitrogen oxides from exhaust gases of combustion engines.
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