CAS: 2873-97-4; N-(2-Methyl-4-Oxopentan-2-yl)Acrylamide

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4223-03-4 5239-39-4 2873-97-4

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CAS号123-42-2 二丙酮醇 | CAS号107-13-1 丙烯腈 | CAS号67-64-1 丙酮 | CAS号79077-49-9 N-(4-hydroxyimi...

5,6-Dihydro-4,4,6-Trimethyl-2-Vinyl-6-Hydroxy-1,3(4H)-Oxazine Sulfate置于氨体系中,用 甲苯 用作溶剂,化学反应生成双丙酮丙烯酰胺
参考文献:一种双丙酮丙烯酰胺的制备方法
标题:一种双丙酮丙烯酰胺的制备方法
摘要:本发明公开了一种双丙酮丙烯酰胺的制备方法,步骤为:(1)将丙酮和丙烯腈混合并加入浓硫酸,使三者充分进行缩合反应,反应完成后制得混合物;(2)用分散剂洗涤混合物,洗涤完成后固液分离得中间体产物;(3)将中间体产物混入有机溶剂中,然后加入碱,使碱与中间体产物在液相体系中进行反应,待液相体系的ph值大于等于7时结束反应,反应完成后将溶有产物的有机溶剂分离出,得产物溶液;(4)向产物溶液中加入阻聚剂,先减压蒸馏回收有机溶剂,再进行精馏,精馏所得馏分即为双丙酮丙烯酰胺.该方法先分离出双丙酮丙烯酰胺的中间体,可除去丙烯酰胺和乙烯基单体等杂质,后续分离步骤中杂质含量少,可提高产品主含.

专利信息

专利号:US-8669356-B2
优先权日:2009-10-21
标 题 :Linker and support for solid phase synthesis of nucleic acid
发明人：HAYAKAWA YOSHIHIRO; TSUKAMOTO MASAKI; MORI KENJIRO; MINOMI KENJIRO; MAETA ERI; KONISHI TATSUYA
权利人:HAYAKAWA YOSHIHIRO; TSUKAMOTO MASAKI; MORI KENJIRO; MINOMI KENJIRO; MAETA ERI; KONISHI TATSUYA; NITTO DENKO CORP; UNIV NAGOYA NAT UNIV CORP
摘要:The invention provides a universal linker capable of synthesizing nucleic acid having a phosphate group at the 3′ terminal, a universal support carrying the linker, and a synthesis method of nucleic acid using the universal support. The linker for solid phase synthesis of nucleic acid contains a compound represented by at least one of the following formulae n nwherein each symbol is as defined in the specification.

专利号:US-3891594-A
优先权日:1972-04-07
标题:Direct synthesis of composite materials
发明人：TAYLOR LYNN J
权利人:TAYLOR LYNN J
摘要:There is disclosed an in situ process for the preparation of a composite material consisting essentially of an organic polymer or copolymer having dispersed therein an inorganic oxide or mixture of oxides, said process comprising the simultaneous or sequential synthesis of the organic polymer from at least one non-polymeric organic precursor and of the inorganic oxide or oxide mixture derived from at least one inorganic-oxide precursor.

专利号:US-3817911-A
优先权日:1972-04-07
标 题 :Direct synthesis of composite materials
发明人：TAYLOR L
权利人:TAYLOR L
摘要:THERE IS DISCLOSED AN IN SITU PROCESS FOR THE PREPARATION OF A COMPOSITE MATERIAL CONSISTING ESSENTIALLY OF AN ORGANIC POLYMER OR COPOLYMER HAVING DISPERSED THEREI AN INORGANIC OXIDE OR MIXTURE OF OXIDES, SAID PROCESS COMPRISING THE SIMULTANEOUS OR SEQUENTIAL SYNTHESIS OF THE ORGANIC POLYMER FROM AT LEAST ONE NON-POLYMERIC ORGANIC PRECUROR AND OF THE INORGANIC OXIDE OR OXIDE MIXTURE DERIVED FROM AT LEAST ONE INORGANIC-OXIDE PRECURSOR.

专利号:US-3960805-A
优先权日:1974-04-19
标 题:Direct synthesis of organic polymer-inorganic oxide composites
发明人：TAYLOR LYNN JOHNSTON
权利人:TAYLOR LYNN JOHNSTON
摘要:There is disclosed an in situ process for the preparation of a composite material consisting essentially of an organic polymer or copolymer having dispersed therein an inorganic oxide or mixture of oxides, said process comprising the simultaneous or sequential synthesis of the organic polymer from at least one non-polymeric organic precursor and of the inorganic oxide or oxide mixture derived from at least one inorganic-oxide precursor.

专利号:US-8835656-B2
优先权日:2012-01-30
标 题 :Linker and support for solid phase synthesis of nucleic acid
发明人：TSUKAMOTO MASAKI; SUZUKI NORITAKA; HAYAKAWA YOSHIHIRO; MAETA ERI; MORI KENJIRO; MINOMI KENJIRO
权利人:NITTO DENKO CORP; UNIV NAGOYA NAT UNIV CORP
摘要:The invention provides a universal linker capable of synthesizing nucleic acid having a hydroxy group at the 3′ terminal, a universal support carrying the linker, and a synthesis method of nucleic acid using the universal support. The linker contains a compound represented by the formula n nwherein each symbol is as defined in the specification.

专利号:US-4499248-A
优先权日:1983-05-12
标题:Poly-diisopropenyl benzene synthesis
发明人：JALICS GEORGE
权利人:GOODYEAR TIRE & RUBBER
摘要:It has been unexpectedly found that meta-diisopropenyl benzene can be polymerized into poly-m-diisopropenyl benzene with a relatively narrow molecular weight distribution and with only a small degree of crosslinking (gel formation) if done in the presence of at least one alpha-olefin containing from 2 to 12 carbon atoms in tetrahydrofuran (solvent) at low temperatures employing an alkyl lithium initiator. The poly-m-diisopropenyl benzene produced by employing this technique has an isopropenyl moiety on almost every diisopropenyl benzene repeat unit in the polymer. This polymer is particularly useful since its pendant isopropenyl groups can be further reacted with other compounds leading to polymers with various functionalities. This technique can also be employed in the synthesis of copolymers containing repeat units derived from meta-diisopropenyl benzene and one or more other monomers. The copolymers synthesized using the process of this invention contain an essentially quantitative number of unreacted isopropenyl groups on the meta-disisopropenyl benzene repeat units in the polymer chain.