CAS: 698-10-2; 5-Ethyl-3-Hydroxy-4-Methylfuran-2(5H)-One

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CAS号112026-00-3 2-hydroxy-4-(me...

2-Ethyl-4-Hydroxy-3-Methyl-5-Oxodihydrofuran-2-Carbonsaeure 反应 10.0H,以86%的收率获得产物3-羟基-4-甲基-5-乙基-2(5H)呋喃酮
参考文献:合成von 2-Hydeoxy-3-Methyl-2-Hexen-4-Olid
标题:合成von 2-Hydeoxy-3-Methyl-2-Hexen-4-Olid
摘要:2-羟基-3-甲基-2-己烯-4-油的合成
DOI:10.1002/hlca.19870700214

专利信息

专利号:US-10596632-B2
优先权日:2015-12-15
标题 :Method for the synthesis of metal nanoparticles in aqueous environment without the use of shape directing agents
发明人：MOGLIANETTI MAURO; POMPA PIER PAOLO
权利人:FONDAZIONE ST ITALIANO TECNOLOGIA
摘要:The present disclosure relates to a seed-growth based method for the synthesis of metal nanoparticles of controlled shape (cubes, cuboids, octahedrons) and size in an aqueous environment, without the use of shape directing agents. The method involves a first step of preparing a solution comprising water, metal seed growth nanoparticles, a metal salt comprising the same metal as the metal seed growth nanoparticles, and a reducing agent; and a second step of heating the solution to between 9 and 130° C. at a rate of between 1° C./min and 5° C./min and at a pressure of between 1 and 5 atm. The method may also be carried out in a reduced oxygen atmosphere and the concentration of oxygen disclosed in the solution may be less than the concentration of oxygen in an oxygen saturated solution.

专利号:US-8754259-B2
优先权日:2008-08-15
标 题 :Synthesis of cyclohexane derivatives useful as sensates in consumer products
发明人：YELM KENNETH EDWARD; BUNKE GREGORY MARK; HAUGHT JOHN CHRISTIAN
权利人:PROCTER & GAMBLE; PROCTER & GAMBLE
摘要:The present invention provides synthetic routes for preparing various isomers of cyclohexane-based coolants, such as menthyl esters and menthanecarboxamide derivatives, in particular those substituted at the amide nitrogen, for example with an aromatic ring or aryl moiety. Such structures have high cooling potency and long lasting sensory effect, which make them useful in a wide variety of consumer products. One synthetic route involves a copper catalyzed coupling of a primary menthanecarboxamide with an aryl halide, such reaction working best in the presence of potassium phosphate and water. Using this synthetic route, specific isomers can be prepared including the menthanecarboxamide isomer having the same configuration as l-menthol and new isomers such as a neoisomer having opposite stereochemistry at the carboxamide (C-1) position. The neoisomer unexpectedly has potent and long lasting cooling effect. Preparation schemes for neoisomers of other menthyl derivatives which are useful as coolants, including esters, ethers, carboxy esters and other N-substituted carboxamides are also provided.

专利号:EP-3389905-A1
优先权日:2015-12-15
标题:Method for the synthesis of metal nanoparticles in aqueous environment without the use of shape directing agents

专利号:CN-108430676-B
优先权日:2015-12-15
标题 :A method for the synthesis of metal nanoparticles in an aqueous environment without the use of shape directing agents

专利号:CA-2731967-A1
优先权日:2008-08-15
标 题:Synthesis of cyclohexane derivatives useful as sensates in consumer products

专利号:US-8426643-B2
优先权日:2008-08-15
标题 :Synthesis of cyclohexane derivatives useful as sensates in consumer products