溶剂黄146置于potassium Tert-Butylate体系中,52.0~100.0 °C,40.0 Pa 条件下,以61%的收率获得1-乙基-3-甲基咪唑醋酸盐 参考文献:[de] Verfahren Zur Herstellung Von Gereinigten 1,3-Substituierten Imidazoliumsalzen Method For The Production Of Purified 1,3-Substituted Imidazolium Salts[fr] Procede De Production De Sels D'Imidazolium A Substitution En Position 1,3 Purifies 标题:[de] Verfahren Zur Herstellung Von Gereinigten 1,3-Substituierten Imidazoliumsalzen Method For The Production Of Purified 1,3-Substituted Imidazolium Salts[fr] Procede De Production De Sels D'Imidazolium A Substitution En Position 1,3 Purifies 摘要:通过在20至250oc范围内使用强碱与一般式(I)中的1,3-取代咪唑盐反应,通过蒸馏生成的1,3-取代咪唑-2-亚甲基的方法制备经过净化的1,3-取代咪唑盐的方法,其中将蒸馏生成的1,3-取代咪唑-2-亚甲基以气态形式与质子酸haa (III)接触,和/或将蒸馏生成的1,3-取代咪唑-2-亚甲基以气态或冷凝状态引导到含有质子酸haa (III)的试剂中.
专利号:US-8541571-B2 优先权日:2008-03-03 标题:Homogeneous synthesis of cellulose ethers in ionic liquids 发明人:MOELLMANN EUGEN; HEINZE THOMAS; LIEBERT TIM; KOEHLER SARAH 权利人:MOELLMANN EUGEN; HEINZE THOMAS; LIEBERT TIM; KOEHLER SARAH; SE TYLOSE GMBH & CO KG 摘要:The invention is directed to a simple and new method for the homogeneous synthesis of cellulose ethers. Ionic liquids are not only used as solvent, but also as reaction media for the homogeneous etherification of cellulose. The dissolved cellulose is treated with the etherification agent in the absence of organic and/or inorganic bases and in the absence and/or in the presence of moderate amounts of water. The obtained cellulose ethers show new distributions of substitution on the polymer chain, resulting in new properties and applications.
专利号:US-2024308991-A1 优先权日:2021-01-15 标 题:Process for the synthesis of reactive carbohydrates including antigen precursors for conjugation with a carrier material 发明人:SHIAO TZE CHIEH; MIGNANI SERGE; MOFFETT SERGE; VISHWAKARMA RAM 权利人:KORANEX CAPITAL 摘要:Carbohydrate of Formula (A)where R1 is H and n an integer from 1 to 5, is synthesized by reacting, under heating, compound (A0)with HO—(CH2)n—CHâ•?CH2 in the presence of an acid capable of liberating a proton, and cooling the reaction mixture to obtain a cooled mixture comprising compound (A).Carbohydrate of Formula (AAPG)where R2 is a monovalent protecting group, PG is a divalent protecting group and n an integer from 1 to 5, is synthesized by reacting, in the presence of a metal-containing zeolite, compound of Formula (APG)with compound of Formula (A1)where X is —I, —Br, —Cl, —CN, —OTf (Triflate), —OMs (Mesylate), —OTs (Tosylate), methylsulfate, or trichloroacetimidate. Deprotection of compound (AAPG) forms compound (AA)Carbohydrates (A) and (AA) can be coupled with a thiolated linker to form glycoconjugate precursors, which in turn are conjugatable with a carrier material such as a protein, peptide or polypeptide.
专利号:US-10287527-B2 优先权日:2014-12-01 标题:Eco-friendly process for the isolation of biopolymers from agricultural residues 发明人:ROUT PRASANTA KUMAR; NANNAWARE ASHWEEN DEEPAK; PRAKASH OM; RAJASEKHARAN RAM 权利人:COUNCIL SCIENT IND RES 摘要:Agricultural residues (biomasses) have come-up as potential valuable renewable resources for transformation into many bio-products. To achieve this goal, the isolation of major biopolymers in their purest form through an economical process is demanded for synthesis of the target fine chemicals without impurities. However, the difficulty of fractionating the biomass into cellulose, hemicellulose and lignin by a simple method has greatly limited their isolation from agricultural residues. Also, the lipids and waxes present on the surface of the agricultural residues protect it from external chemical and microbial agents. To overcome this issue, the lipids and waxes have been isolated from the biomass through two step organic solvents extraction. Thereafter lignin, hemicellulose and cellulose are isolated successively from the de-waxed biomass.
专利号:US-12392085-B2 优先权日:2020-04-28 标题 :Use of in-situ ionic liquid (IL) and deep eutectic solvent (DES) synthesis using chemically synthesized or biomass-derived ions in the pretreatment of biomass 发明人:MAGURUDENIYA HARSHA D; ACHINIVU EZINNE; SIMMONS BLAKE A; GLADDEN JOHN M 权利人:UNIV CALIFORNIA; NATIONAL TECH AND ENGINEERING SOLUTIONS OF SANDIA LLC; NAT TECH & ENG SOLUTIONS SANDIA LLC 摘要:The present invention provides for a method to deconstruct a biomass comprising: (a) introducing one or more individual components of an ionic liquid (IL) or deep eutectic solvent (DES) to a biomass, wherein the one or more individual components, and optionally any components already present in the biomass, form an IL or DES, or mixture thereof, which solubilizes the biomass to form a solubilized biomass mixture, wherein at least one individual component is introduced to the biomass separately from any other individual component; (b) optionally introducing an enzyme and/or a microbe to the solubilized biomass mixture such that the enzyme and/or microbe produces a sugar from the solubilized biomass mixture; and, (c) optionally separating the sugar from the solubilized biomass mixture.
专利号:US-9765044-B2 优先权日:2013-03-15 标 题 :Synthesis of novel ionic liquids from lignin-derived compounds 发明人:SOCHA AARON; SINGH SEEMA; SIMMONS BLAKE A; BERGERON MAXIME 权利人:UNIV CALIFORNIA; SANDIA CORP 摘要:Methods and compositions are provided for synthesizing ionic liquids from lignin derived compounds comprising: contacting a starting material comprising lignin with a depolymerization agent to depolymerize the lignin and form a mixture of aldehyde containing compounds; contacting the mixture of aldehyde containing compounds with an amine under conditions suitable to convert the mixture of aldehyde containing compounds to a mixture of amine containing compounds; and contacting the mixture of amine containing compounds with an acid under conditions suitable to form an ammonium salt, thereby preparing the ionic liquid.
专利号:US-2017341036-A1 优先权日:2014-11-04 标题 :Improved method for synthesis of polyamide composite membranes 发明人:MARIËN Hanne; VANKELECOM IVO; HERMANS SANNE 权利人:UNIV LEUVEN KATH 摘要:The present invention provides a method for the preparation of thin film composite (TFC) membranes, preferably solvent resistant TFC membranes, by interracial polymerization (IFP), more in particular solvent resistant TFC membranes wherein a thin PA-layer is deposited on a porous support membrane. Said method comprises the replacement of the aqueous and/or the organic solvent in the IFP method by an ionic liquid (IL) as solvent for the monomers which form said TFC membranes, to alter the top layer morphology, thickness and crosslinking degree.
[参考文献]: Alexander Gottberg, Et Al. Billion-Fold Enhancement In Sensitivity Of Nuclear Magnetic Resonance Spectroscopy For Magnesium Ions In Solution. Chemphyschem. 2014 Dec 15;15(18):3929-32. [参考文献]: Anne Michud, Et Al. Monitoring Of Cellulose Depolymerization In 1-Ethyl-3-Methylimidazolium Acetate By Shear And Elongational Rheology. Carbohydr Polym. 2015 Mar 6:117:355-363. [参考文献]: Daisuke Sugioka, Et Al. Single-Step Preparation Of Two-Dimensionally Organized Gold Particles Via Ionic Liquid/metal Sputter Deposition. Phys Chem Chem Phys. 2015 May 21;17(19):13150-9. [参考文献]: Jinhui Pang, Et Al. Comparison Of Physical Properties Of Regenerated Cellulose Films Fabricated With Different Cellulose Feedstocks In Ionic Liquid. Carbohydr Polym. 2015 May 5:121:71-8. [参考文献]: Piyarat Weerachanchai, Et Al. Determination Of Solubility Parameters Of Ionic Liquids And Ionic Liquid/solvent Mixtures From Intrinsic Viscosity. Chemphyschem. 2014 Nov 10;15(16):3580-91.
合成参考文献
摘要:de Figueiredo, R. M., Science of Synthesis: Knowledge Updates, (2024) 2, 278.