CAS: 922-63-4; 2-Methylenebutanal

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CAS号50-00-0 甲醛 | CAS号123-72-8 正丁醛 | CAS号110-62-3 正戊醛 | CAS号506-59-2 盐酸二甲胺 | CAS号111-92-2 二正丁胺 | CAS号38433-81-7 2-ethyl-3-hydro... | CAS号77-99-6 三羟甲基丙烷 | CAS号4435-54-5 2-Methylene-1-b... | CAS号4064-89-5 5-ethyl-5-nitro... | CAS号3586-58-1 2-乙基丙烯酸 | CAS号2177-67-5 Methyl 2-ethyla... | CAS号565-60-6 3-甲基-2-戊醇(非对映异构... | CAS号565-61-7 3-甲基-2-戊酮 | CAS号497-03-0 反-2-甲基-2-丁烯醛 | CAS号20754-04-5 3-甲基-4-辛酮 | CAS号77-99-6 三羟甲基丙烷 | CAS号23235-61-2 双(三羟甲基)丙烷 | CAS号1873-54-7 3-乙基喹啉 | CAS号96-17-3 2-甲基丁醛

5-Ethyl-5-Nitro-[1,3]Dioxane置于ppa,铜体系中,化学反应生成 2-乙基丙烯醛
参考文献:Kissinger,L.W. Et Al.,Tetrahedron,Supplement,1964,Vol. 6,P. 317-323
标题:Kissinger,L.W. Et Al.,Tetrahedron,Supplement,1964,Vol. 6,P. 317-323

专利信息

专利号:US-9834501-B2
优先权日:2016-01-28
标题 :Efficient synthesis of methacroelin and other alpha, beta—unsaturated aldehydes from methanol and an aldehyde
发明人：BOPPANA Venkata Bharat; NORMAN DAVID WILLIAM; TUSTIN GERALD C; STEFFEY MELISSA PAGE
权利人:EASTMAN CHEM CO
摘要:A process is described that uses a silver catalyst to convert methanol into formaldehyde in the presence of less than a stoichiometric amount of oxygen. The resulting formaldehyde is reacted without isolation with propionaldehyde over a commercially available anatase titania catalyst that is shown to be catalytically active towards the formation of methacrolein from formaldehyde and propionaldehyde with conversions and selectivities close to 90%. This titania catalyst is readily available, non-toxic, and can be used with formaldehyde and a variety of other aldehyde compounds to make α,β-unsaturated aldehyde compounds. This process benefits from low raw material costs and is economically advantaged due to the elimination of catalyst separation. This process shows promising stability and selectivity during lifetime studies, particularly when performed in the presence of a hydrogen carrier gas.

专利号:US-2005004225-A1
优先权日:2003-04-16
标题:Oxidoreductase inhibitors and methods of screening and using thereof
发明人：BALENDIRAN GANESARATNAM K
摘要:The present invention relates to 1) the design and synthesis of analogs to glutathione conjugates which bind to or interact with aldose reductase (AR) through unique conformations that are distinctly different from the substrates and inhibitors of AR which are members of sugar metabolism; 2) the screening of the analogs to identify those that interact with or inhibit or enhance the activity of AR; and 3) the use of AR ligands, AR inhibitors (AR antagonsits) or AR enhancer (AR agonists) in the detection of AR activity, the modulation of AR activity, and the treatment of conditions in a subject in need of modulating AR activity. Such conditions include but not limited to cardiovascular disease, diabetes, artheriosclerosis, cancer, neoplasm, obesity, cataract, retinopathy, keratopathy, nephropathy, neurosis, thrombosis, faulty union of corneal injury and neuropathy. Examples of the treatment include the use of fibrates as AR inhibitors to treat these conditions.

专利号:US-8236976-B2
优先权日:2004-03-09
标 题 :Processes for highly enantio- and diastereoselective synthesis of acyclic epoxy alcohols and allylic epoxy alcohols
发明人：WALSH PATRICK; LURAIN ALICE E; KELLY ANN R; MAESTRI AARON G
权利人:WALSH PATRICK; LURAIN ALICE E; KELLY ANN R; MAESTRI AARON G; UNIV PENNSYLVANIA
摘要:The inventive subject matter relates to novel processes for making an epoxy alcohol from an aldehyde, comprising the steps of: (a) adding (i) an organozinc compound or (ii) divinylzinc compound and an diorganozinc compound to said aldehyde in the presence of a first catalyst to form an allylic alkoxide compound; and (b) epoxidizing said allylic alkoxide compound in the presence of an oxidant and a second catalyst.

专利号:US-10040964-B2
优先权日:2014-02-12
标题:Use of tristyrylphenol alkoxylate sulfosuccinates in emulsion polymerization and coatings
发明人：LUEBKE GARY; RESCHAK KEITH; LUKA RENEE; KALTENBACH JARROD
权利人:STEPAN CO
摘要:Disclosed are the use of novel surfactants for the synthesis of emulsion polymer latexes, particularly those used in paints, coatings, and pressure sensitive adhesives. The surfactant compositions for emulsion polymer latexes comprise sterically bulky surfactants whose composition comprises at least one alkoxylated polyaryl substituted aromatic sulfosuccinate compound. The novel surfactants provide for the production of stable, small particle size distribution emulsion polymer latexes. The resulting latexes, when formulated into latex paint, impart improvements in water resistance as measured by film opacity, blister resistance and improved leveling characteristics, and when formulated into pressure sensitive adhesives, provide improved water resistance characteristics as measured by film opacity.

专利号:US-9828322-B2
优先权日:2016-01-28
标题 :Efficient synthesis of methacroelin and other alpha, beta-unsaturated aldehydes over a regenerable anatase titania catalyst
发明人：BOPPANA Venkata Bharat; NORMAN DAVID WILLIAM; TUSTIN GERALD C; STEFFEY MELISSA PAGE
权利人:EASTMAN CHEM CO
摘要:A commercially available anatase titania catalyst is shown to be catalytically active towards the formation of methacrolein from formaldehyde and propionaldehyde with conversions and selectivities close to 90%. This titania catalyst is readily available, non-toxic, and can be used with formaldehyde and a variety of other aldehyde compounds to make α,β-unsaturated aldehyde compounds. This process benefits from low raw material costs and is economically advantaged due to the elimination of catalyst separation. An additional advantage of this method involves the ability of the catalyst to be fully regenerated after a calcination step at 450° C. in air. This process shows promising stability and selectivity during lifetime studies, particularly when performed in the presence of a hydrogen carrier gas.

专利号:US-4292452-A
优先权日:1978-02-01
标 题:Rhodium-catalyzed hydrogenation of unsaturated aldehydes to unsaturated alcohols
发明人：LEE RICHARD J; MEYER DELBERT H; SENNEKE DARRELL M
权利人:STANDARD OIL CO INDIANA
摘要:Process for selective hydrogenation of aliphatic unsaturated aldehyde to unsaturated alcohol with gaseous hydrogen using supported rhodium-complex catalyst. This invention relates to a process for preparing unsaturated aliphatic alcohols wherein unsaturated aliphatic aldehydes are selectively hydrogenated using supported rhodium-complex catalyst. Unsaturated alcohols have use in the production of plastics and perfumes. Crotonyl alcohol, for example, has utility for the production of copolymers with vinyl acetate or styrene, and also as an intermediate for synthesis of other organic compounds. Allyl alcohol is a precursor for butanediol which is used to produce tetrahydrofuran, polyesters such as polybutylene terephthalate, and polybutylene oxide based polyurethanes. Particular difficulty in selectively hydrogenating alpha, beta unsaturated aldehydes is described in U.S. Pat. No. 3,655,777 (Rylander et al., 1972, assigned to Engelhard Minerals and Chemicals) wherein patentees teach many catalysts, e.g., palladium, platinum, rhodium, ruthenium, and nickel, usually reduce the double bond in preference over reduction of the carbonyl group. Rylander also teaches a high pressure process to obtain unsaturated alcohols using an osmium catalyst.