对甲苯磺酸甲酯置于硫酸二甲酯体系中,化学反应生成丙二醇甲醚醋酸酯 参考文献:Quaternary Ammonium Salt Compound 标题:Quaternary Ammonium Salt Compound
专利信息
专利号:US-9829793-B2 优先权日:2011-10-04 标 题:Fabrication of free standing membranes and use thereof for synthesis of nanoparticle patterns 发明人:YANG JUN; LI TINGJIE 权利人:YANG JUN; LI TINGJIE; UNIV WESTERN ONTARIO 摘要:The present disclosure discloses a method of fabrication of free standing open pore membranes with uniform pore size and shape and ordered pore distribution, and its use for synthesis of nanoparticle patterns. The method includes applying a photoresist layer to the top surface of a substrate, heating the photoresist layer for a period of time, and exposing the photoresist layer to a dose of ultraviolet radiation through a mask having a predetermined pattern. The dose of ultraviolet radiation is controlled in intensity and time and the photoresist layer is exposed such that a top portion of the photoresist layer through which the dose of ultraviolet radiation enters the photoresist layer undergoes greater cross linking than a bottom portion of the photoresist layer immediately adjacent to the top surface of the substrate such that a cross linking gradient develops through a thickness of the photoresist layer. The mask is removed and the membrane is readily detached from the top surface of the substrate since the portion of the membrane adjacent to the top surface is less cross linked than the top surface of the membrane. The detached membrane forms a free standing patterned membrane having a preselected pattern of open pores. The method can be used with positive photoresist materials as well when deposited on a UV transparent substrate so that the photoresist can be exposed to UV from its top with photomask and UV exposure from its back of the transparent substrate without the photomask.
专利号:US-11685712-B2 优先权日:2019-12-30 标 题 :Synthesis of monofunctional thiuram accelerator 发明人:SPILKER THOMAS FRANKLIN; Jin ji yang; FEHER FRANK J 权利人:GOODYEAR TIRE & RUBBER 摘要:The present invention provides a route for synthesizing monofunctional thiuram compounds that is safe, environmentally friendly, and cost effective. This method specifically involves synthesizing a monofunctional thiuram by (1) reacting a tetraorganylthiuram disulfide with an organyl mercaptan to produce the monofunctional thiuram and a dithiocarbamate metal salt or a dithiocarbamate metalloid salt under basic conditions, (2) separating the monofunctional thiuram in an organic phase from the dithiocarbamate metal salt or the dithiocarbamate metalloid salt in an aqueous phase, and (3) recovering the monofunctional thiuram from the aqueous phase. The monofunctional thiuram compounds made in accordance with this invention are of particular value as accelerators for use in the vulcanization of rubber. The use of these monofunctional thiuram compounds as accelerators provides good cure rates and as well as good scorch safety.
专利号:US-2024199680-A1 优先权日:2021-04-02 标 题:Synthesis of fluorinated cyclic dinucleotides 发明人:AN CHIHUI; FIER PATRICK S; HIRAGA KAORI; LIU ZHIJIAN; MARSHALL NICHOLAS M; MCINTOSH JOHN; MILLER STEVEN P; MOORE JEFFREY C; MURPHY GRANT S; OBLIGACION JENNIFER V; PAN WEILAN; PENG FENG; SALEHI MARZIJARANI NASTARAN; WINSTON MATTHEW S 权利人:MERCK SHARP & DOHME LLC 摘要:The present invention relates to efficient processes useful in the preparation of fluorinated cyclic dinucleosides, such as [P(R)]-2′-deoxy-2′-fluoro-5′-O—[(R)-hydroxymercaptophosphinyl]-P-thio-β-D-arabino-adenylyl-(3′→5′)-3′-deoxy-3′-fluoroguanosine cyclic nucleotide, which is also known as (2R,5R,7R,8S,10R,12aR,14R,15S,15aR,16R)-7-(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)-14-(6-amino-9H-purin-9-yl)-15,16-difluoro-2, 10-bis(sulfanyl)octahydro-2H,10H, 12H-2λ 5 ,10λ 5 -5,8-methanofuro[3,2-1][1, 3,6,9,11,2,10]pentaoxadiphosphacyclotetradecine-2,10-dione. The present invention also encompasses intermediates useful in the disclosed synthetic processes and the methods of their preparation.
专利号:US-2005209355-A1 优先权日:2004-03-22 标 题:[Novel Reactions and the Products of Such Reactions] 发明人:ROITMAN LIPA L 权利人:ROITMAN LIPA L 摘要:A process for the synthesis of novel compounds is described comprising reacting tetrachloroethylene with substances containing active methylene group in the presence of free radical initiators. Also, a process for grafting tetrachloroethylene is described comprising reacting these compounds with polymers containing active methylene group in the presence of free radical initiators. Furthermore, a method of conducting such reactions to high conversion is described, comprising conducting the reactions in the reflux condensate. The present invention provides a novel and high yield route for heretofore unobtainable materials.
专利号:US-5159123-A 优先权日:1991-05-02 标 题:Synthesis of hydroxyl-terminated polybutadienes using glycol ether acetate solvents 发明人:KNIFTON JOHN F; MARQUIS EDWARD T 权利人:TEXACO CHEMICAL 摘要:Disclosed is an improvement in a process for polymerizing 1,3-butadiene selectively to form relatively low molecular weight hydroxyl-terminated polybutadiene oligomers in the presence of an aqueous solution of hydrogen peroxide which comprises the use of a solvent selected from the group consisting of alkylene glycol monoalkyl ether acetates and aliphatic glycol ether carboxylates to produce butadiene oligomers having a high degree of OH functionality and suppression of formation of solid or gel-type insoluble rubber by-products.
专利号:US-8193307-B2 优先权日:2007-07-23 标题 :Synthesis of photoresist polymer 发明人:TAKEDA TAKANOBU; WATANABE TAMOTSU 权利人:TAKEDA TAKANOBU; WATANABE TAMOTSU; SHINETSU CHEMICAL CO 摘要:A polymer for use in photoresist compositions is synthesized by effecting polymerization reaction to form a polymerization product mixture and subjecting the mixture to molecular weight fractionation by a liquid phase separation technique using a good solvent and a poor solvent. The fractionation step is iterated at least twice, and one iteration of fractionation includes adding a good solvent which is different from the good solvent added in the other iteration of fractionation.
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合成参考文献
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