CAS: 931-36-2; 2-Ethyl-5-Methyl-1H-Imidazole

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CAS号78-90-0 1,2-丙二胺 | CAS号123-38-6 丙醛 | CAS号598-31-2 溴丙酮 | CAS号66675-19-2 N,N'-(methyl-et... | CAS号123-62-6 丙酸酐 | CAS号84255-42-5 2-乙基-4-甲基咪唑-5-二硫代羧酸 | CAS号94887-76-0 (2-ethyl-5-meth...

2-乙基-4-甲基咪唑烷置于5%-Palladium/activated Carbon体系中,化学反应 10.0H,以86.8%的收率获得产物2-乙基-4-甲基咪唑
参考文献:一种环境友好的2-乙基-4-甲基咪唑合成方法
标题:一种环境友好的2-乙基-4-甲基咪唑合成方法
摘要:本发明公开了一种2‑乙基‑4‑甲基咪唑的绿色合成方法,属于有机合成技术领域;本发明采用低毒的丙酸甲酯和1,2‑丙二胺以适当的反应比例于80oc下反应生成氨丙基丙酰胺,再在催化剂存在下用芳香烃带水关环反应生成2‑乙基‑4‑甲基咪唑啉;2‑乙基‑4‑甲基咪唑啉在pd/c催化剂存在下于120~140oc下脱氢制得2‑乙基‑4‑甲基咪唑;用本发明方法制备2‑乙基‑4‑甲基咪唑,不但避免了使用高毒的丙腈及高污染的醛和氨,以及遇空气燃烧的高危险雷尼镍催化剂,而且生产过程中也不产生废氨,属一种环境友好的制备2‑乙基‑4‑甲基咪唑方法.

专利信息

专利号:US-2002161219-A1
优先权日:2001-02-21
标 题:Non-enzymatic large scale synthesis of RNA
发明人：KANAVARIOTI ANASTASSIA; DEAMER DAVID W; MONNARD PIERRE-ALAIN M; BERNASCONI CLAUDE F
摘要:This invention pertains to the development of methods that accomplish efficient, non-enzymatic, nucleic acid-directed (e.g. RNA-directed) nucleic acid (e.g. RNA) synthesis. In certain embodiments the methods provide conditions that favor oligouridylate synthesis with excellent yield and, at least, up to 30% regioselectivity favoring the RNA linkage. The methods preferably involve contacting, in the presence of lead ions (Pb 2+ ) and/or tin ions (Sn 2+ ) and, optionally, magnesium ions (Mg 2+ ), a template nucleic acid with a nucleotide derivatized with an imidazolide.

专利号:US-9018387-B2
优先权日:2010-06-11
标 题:Complexes of imidazole ligands
发明人：NORMAN JOHN ANTHONY THOMAS; PEREZ MELANIE K; LEI XINJIAN; SPENCE DANIEL P; IVANOV SERGEI VLADIMIROVICH; BAILEY III WADE HAMPTON
权利人:NORMAN JOHN ANTHONY THOMAS; PEREZ MELANIE K; LEI XINJIAN; SPENCE DANIEL P; IVANOV SERGEI VLADIMIROVICH; BAILEY III WADE HAMPTON; AIR PROD & CHEM
摘要:Metal imidazolate complexes are described where imidazoles ligands functionalized with bulky groups and their anionic counterpart, i.e., imidazolates are described. Compounds comprising one or more such polyalkylated imidazolate anions coordinated to a metal or more than one metal, selected from the group consisting of alkali metals, transition metals, lanthanide metals, actinide metals, main group metals, including the chalcogenides, are contemplated. Alternatively, multiple different imidazole anions, in addition to other different anions, can be coordinated to metals to make new complexes. The synthesis of novel compounds and their use to form thin metal containing films is also contemplated.

专利号:US-10385167-B2
优先权日:2015-02-13
标题:Process for the synthesis of polyoxazolidinone compounds with high stability
发明人：MÃœLLER THOMAS ERNST; Gürtler Christoph; BASU SUSMIT; RANGHEARD CLAUDINE; RIVILLO DAVID; LEITNER WALTER; Köhler Burkhard
权利人:COVESTRO DEUTSCHLAND AG
摘要:The present invention relates to polyoxazolidinone compounds, a method for the production of polyoxazolidinone compounds, comprising the step of reacting a biscarbamate compound with a bisepoxide compound in the presence of a mono-carbamate, a mono-isocyanate and/or a mono-epoxide compound as chain regulator and a suitable base having a pK b value of ≤9 as catalyst. The invention further relates to the use of polyoxazolidinone compounds with high thermal stability.

专利号:WO-2016033079-A1
优先权日:2014-08-29
标题:Synthesis of naphthol novolac
发明人：FANG LIJING; LIAO GUIHONG; CHEN HONGYU; ZHANG CHAO; MULLINS MICHAEL J
权利人:BLUE CUBE IP LLC
摘要:A method for making naphthol novolac comprising: contacting a) a naphthol component comprising i) from 1 to 99 weight percent 1- naphthol; and ii) from 1 to 99 weight percent 2-naphthol; and b) an aldehyde in a reaction zone under reaction conditions to form the naphthol novolac, is disclosed. Also disclosed is a curable composition comprising: a) an epoxy resin; and b) a hardener component comprising i) an oligomeric compound comprising a phosphorus composition which is the reaction product of an etherified resole with 9,10-dihydro-9-oxa-10- phosphaphenanthrene-10-oxide, and ii) a naphthol novolac prepared by the above method. The curable composition can be used to prepare prepregs and electrical laminates.

专利号:US-4658009-A
优先权日:1985-03-14
标题:Novel 2-substituted-4,6-diamino-s-triazine/isocyanuric acid adduct, process for synthesis of said adduct and process for curing polyepoxy resin with said adduct
发明人：KAMAGATA KAZUO; YAMADA TOSHIAKI; SAWA NATSUO
权利人:SHIKOKU CHEM
摘要:Disclosed is a 2-substituted-4,6-diamino-s-triazine/isocyanuric acid adduct represented by the following formula: (1) wherein R stands for an alkyl group having 2 to 20 carbon atoms, an unsubstituted or cyano group-substituted aryl group, or a group of the formula R1-CH2CH2- in which R1 stands for an alkoxy group having up to 20 carbon atoms, an acyloxy group, an amino group, an N-substituted amino group, a benzotriazolyl group or a 2-alkylimidazolyl-(4)-dithiocarbonyl group, or by the following formula: (2) wherein R2 stands for an alkylene group which may have an intervening imino or phenylene group. When this adduct is used for curing a polyepoxy resin, a cured product having good heat resistance, insulating property and adhesion and an excellent migration-preventing effect is formed.

专利号:US-10723912-B2
优先权日:2015-12-04
标 题:Synthesis and development of polyurethane coatings containing flourine groups for abhesive applications
发明人：DOSS JEREME R; CONNELL JOHN W; WOHL JR CHRISTOPHER J
权利人:NASA
摘要:Various embodiments provide epoxy modified fluorinated urethane compositions that may provide desirable bulk mechanical properties of conventional coatings, adhesives, or structural matrix resins, while simultaneously exhibiting surface properties that may reduce surface contamination. Various embodiments provide formulations comprising epoxy modified fluorinated alkyl ether including urethane oligomer or polymer resins that may possess the requisite thermal, mechanical, chemical, and optical properties while achieving a low surface energy. In various embodiments, such resins may be prepared from random urethane oligomer compositions including fluorinated alkyl ether segments, in which the oligomers may be terminated with amino groups and subsequently reacted with epoxy including monomers or oligomers.