CAS: 574-66-3; Benzophenone Oxime

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二苯甲酮对家苯磺酰腙置于sodium Hydroxide体系中,用 硝基甲烷,二甲基亚砜 作为反应溶剂,化学反应 16.0H,以50%的收率获得产物二苯甲酮肟
参考文献:Base And Solvent Mediated Decomposition Of Tosylhydrazones: Highly Selective Synthesis Of N-Alkyl Substituted Hydrazones,Dialkylidenehydrazines,And Oximes
标题:Base And Solvent Mediated Decomposition Of Tosylhydrazones: Highly Selective Synthesis Of N-Alkyl Substituted Hydrazones,Dialkylidenehydrazines,And Oximes
摘要:Base And Solvent Mediated Decomposition Of Tosylhydrazones Was Studied. It Was Found That Reaction Of Tosylhydrazones In Ch3No2 In The Presence Of 1 Equiv Of K2Co3 In 90 Degrees C Gave N-Alkylated Products In 52-96% Yield. However,When The Same Reaction Was Carried Out In Mixed Solvent Of Ch3No2 And Dioxane In The Presence Of 3 Equiv Of Naoh At 110 Degrees C,Dialkylidenehydrazines Were Obtained In Moderate To High Yield. If The Reaction Was Carried Out In Mixed Solvent Of Ch3No2 And Dmso In The Presence Of 10 Equiv Of Naoh At 110 Degrees C,Ch3No2 Can Act As The Precursor Of Hydroxylamine And Corresponding Oximes Were Formed In Up To 92% Yield. (C) 2013 Elsevier Ltd. All Rights Reserved.
DOI:10.1016/j.Tet.2013.03.055

专利信息

专利号:WO-9845231-A1
优先权日:1997-04-09
标题:Supports for solid phase synthesis
发明人：SHAO HUI; CASTELHANO ARLINDO L
权利人:CADUS PHARMACEUTICAL CORP
摘要:Supports for solid-phase synthesis are disclosed. The supports include a phenol or thiophenol linker moiety. A substrate compound can be immobilized to the support through the linker moiety. The supports are suitable for combinatorial synthesis, including synthesis of combinatorial libraries.

专利号:US-6235871-B1
优先权日:1997-12-03
标题:Synthesis of oligoarylamines, and uses and reagents related thereto
发明人：SINGER ROBERT A; SADIGHI JOSEPH P; BUCHWALD STEPHEN L; MACKEWITZ THOMAS
权利人:MASSACHUSETTS INST TECHNOLOGY
摘要:The transition metal-catalyzed amination of aryl halides, in conjunction with an orthogonal protective group scheme, forms the basis of two routes to oligoaniline precursors. The oligoaniline precursors are soluble in a variety of common organic solvents, and are easily converted to the deprotected oligoanilines. The method allows the preparation of oligoanilines of even or odd chain lengths, and the incorporation of a variety of functional groups into the oligomers. Polyanilines of low polydispersity can also be prepared by this method.

专利号:WO-8911473-A1
优先权日:1988-05-27
标 题:Process for the synthesis of o-substituted oxime compounds
发明人：CHEMPOLIL THOMAS MATHEW
权利人:ALLIED SIGNAL INC
摘要:A novel process for the production of O-substituted oximes is disclosed. The process involves reacting an oxime with an alkali-metal hydroxide optionally in a solvent which forms an azeotrope with water to form a mixture of the alkali metal salt of the oxime and water, removing all or a portion of the water by distilling the mixture azeotropically and reacting the distilled mixture with an alpha halo carboxylic acid.

专利号:US-4365027-A
优先权日:1981-12-28
标 题 :Removal of acrylonitrile from latex with oximes
发明人：SENYEK MICHAEL L; COSTANZA ALBERT J
权利人:GOODYEAR TIRE & RUBBER
摘要:Acrylonitrile is a monomer that is widely used in the synthesis of a vast variety of polymers. Undesirable quantities of unpolymerized residual acrylonitrile are often present in these acrylonitrile polymers. This residual or free acrylonitrile dissolved in an acrylonitrile polymer and/or its emulsifier system and the water phase used in its polymerization can be reduced significantly in concentration by treatment with oximes. Oximes react with acrylonitrile by an oxygen-cyanoethylation reaction which results in the formation of a cyanoethyl oximino ether linkage.

专利号:EP-0082618-B1
优先权日:1981-12-23
标题 :Method of preparing a polymeric coating composition
摘要:A method of preparing a storage-stable one-part reactive liquid thermal curing polymeric coating composition from an isocyanate-functional polymeric compound which has a substantial portion of its isocyanate groups masked with an isocvanate masking agent, and a crosslinking agent which is substantially insoluble in aprotic solvents. These liquid compositions are homogeneous even when free of solvents. Preferably the crosslinking agent is a crystalline polyol. The method involves the synthesis of a solubilizing oligomer which is formed by the partial reaction of the crosslinking agent and the unmasked isocyanate-functional polymeric compound. The thermal curing of these compositions results in polymeric coatings which possess superior physical properties. These cured coatings are particularly useful in the manufacture of retroreflective sheeting.

专利号:US-4530859-A
优先权日:1981-12-23
标 题:Method of preparing a polymeric coating composition from a blocked isocyanate-functional polymeric compound and a crosslinking agent which is insoluble in aprotic solvents
发明人：GRUNZINGER JR RAYMOND E
权利人:MINNESOTA MINING & MFG
摘要:A method of preparing a storage-stable one-part reactive liquid thermal curing polymeric coating composition from an isocyanate-functional polymeric compound which has a substantial portion of its isocyanate groups masked with an isocyanate masking agent, and a crosslinking agent which is substantially insoluble in aprotic solvents. These liquid compositions are homogeneous even when free of solvents. Preferably the crosslinking agent is a crystalline polyol. The method involves the synthesis of a solubilizing oligomer which is formed by the partial reaction of the crosslinking agent and the unmasked isocyanate-functional polymeric compound. The thermal curing of these compositions results in polymeric coatings which possess superior physical properties. These cured coatings are particularly useful in the manufacture of retroreflective sheeting.