CAS: 1560-11-8; 1-Cyclopentenecarboxylic Acid

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25662-28-6 6140-65-4 10267-94-4

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CAS号201230-82-2 carbon monoxide | CAS号930-29-0 1-氯-1-环戊烯 | CAS号10267-94-4 环戊-1-烯-1-羧酸乙酯 | CAS号75-25-2 三溴甲烷 | CAS号120-92-3 环戊酮 | CAS号6140-65-4 1-环戊烯甲醛 | CAS号84307-82-4 2-[bis(methylsu... | CAS号122093-61-2 trans-1-(bromod... | CAS号3047-38-9 氰基-1-环戊烯 | CAS号63049-47-8 6-chloro-2-(met... | CAS号3400-45-1 环戊甲酸 | CAS号4630-80-2 环戊烷甲酸甲酯 | CAS号4524-93-0 环戊基甲酰氯 | CAS号1723-00-8 D-(+)-2-哌啶酸 | CAS号110-94-1 戊二酸 | CAS号1120-80-5 cyclopenten-1-y... | CAS号3637-61-4 环戊基甲醇 | CAS号25662-28-6 环戊烯-1-羧酸甲酯 | CAS号124-04-9 己二酸 | CAS号175-94-0 2-氮杂螺[4.4]壬烷

1-羟基环戊烷甲腈置于磷酸,三氯氧磷体系中,化学反应生成1-环戊烯羧酸
参考文献:合成中不饱和羧酸的二烯二醇.通过不饱和羧酸的串联michael-Dieckmann脱羧环化反应合成环己酮和多环酮.
标题:合成中不饱和羧酸的二烯二醇.通过不饱和羧酸的串联michael-Dieckmann脱羧环化反应合成环己酮和多环酮.
摘要:通过将无环和脂环式不饱和羧酸的二烯二醇锂串联加入相同或其他不饱和羧酸的锂盐中来制备取代的2-环己烯酮4至7和六氢萘二烯酮和六氢茚并酮13至18.
Doi:10.1016/s0040-4020(01)86973-8

专利信息

专利号:US-5827794-A
优先权日:1994-02-22
标 题 :Supported highly-polar liquid phase chiral sulfonated binap catalyst for asymmetric synthesis of optically active compounds
发明人：DAVIS MARK E; WAN KAM TO
权利人:CALIFORNIA INST OF TECHN
摘要:The present invention relates to water soluble chiral sulfonated 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl and its use as organometallic catalysts for asymmetric synthesis of optically active compounds. Asymmetric reactions of the present invention include those reactions in which organometallic catalysts are commonly used. Such reactions include, but are not limited to, reduction and isomerization reactions on unsaturated substrates and carbon--carbon bond forming reactions. Examples of such reactions include, but are not limited to, hydrogenation, hydroboration, hydrosilylation, hydride reduction, hydroformylation, alkylation, allylic alkylation, arylation, alkenylation, epoxidation, hydrocyanation, disilylation, cyclization and isomerization reactions. n The catalysts of the present invention provide the advantage of functioning in the presence of water without loss in enantioselectivity relative to the nonsulfonated BINAP catalyst in an organic solvent. As a result, the catalysts of the present invention may be employed in water, water miscible solvents, in aqueous--organic two phase solvent systems and in supported aqueous phase catalysts in organic solvents without loss in enantioselectivity. Further, the catalysts of the present invention may also be effectively employed in highly polar solvents such as primary alcohols and ethylene glycol. n The present invention also relates to a method for conducting asymmetric reactions on prochiral unsaturated bonds contained within a compound using the water soluble chiral sulfonated 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl organometallic catalysts of the present invention.

专利号:WO-2025215126-A1
优先权日:2024-04-12
标题:Synthesis of vidofludimus and its calcium salt
发明人：VITT DANIEL; IGLICAR PETRA; GEGE CHRISTIAN; Mühler Andreas; KOHLHOF HELLA; GRÖPPEL MANFRED
权利人:IMMUNIC AG
摘要:The invention relates to the process of preparation of 2-fluoro-4-(3-methoxyphenyl)aniline (3) as an intermediate. Said intermediate 2-fluoro-4-(3-methoxyphenyl)aniline (3) is obtained in a Suzuki coupling reaction from (3-methoxyphenyl)boronic acid (1) and 4-bromo-2-fluoro-aniline (2). The invention further relates to the synthesis of vidofludimus (5) from said intermediate 2-fluoro-4-(3-methoxy-phenyl)aniline (3) and from 1-cyclopentene-1,2-dicarboxylic anhydride (4). The invention further relates to the synthesis of vidofludimus calcium (6) from said vidofludimus (5) and from a calcium salt, preferably Ca(OH)2.

专利号:US-9029167-B2
优先权日:2010-01-07
标题 :Preparation of an optical PH sensor based on fluorescein and 1-heptanesulfonic acid sodium Co-intercalated layered double hydroxide
发明人：WEI MIN; SHI WENYING; LU JUN; DUAN XUE
权利人:WEI MIN; SHI WENYING; LU JUN; DUAN XUE; UNIV BEIJING CHEMICAL
摘要:This invention relates to the field of preparation technology of optical pH sensor by co-intercalated fluorescein and 1-heptanesulfonic acid sodium into layered double hydroxide. The sensor is composed by conductive materials and the surface LDH films by co-interacted FLU and HES. The synthesis method is: first: synthesis of LDH colloid suspension, subsequently, the FLU and HES co-intercalated LDH colloid solution was prepared following the ion-exchange method, then the thin film of FLU-HES/LDH was spreaded on the surface of the conductive material by electrophoretic deposition, and the oriental pH sensor was synthesized. The advantages of the present invention is: first, the LDH matrix provides chromophore molecules with a confined and stable environment; the novel electrophoretic deposition strategy in this work provides a method for precise control of thickness (ranging from nanometers to micrometers), and the oriental pH sensor show good pH responsive.

专利号:US-2004110228-A1
优先权日:2002-04-01
标 题:Combinatorial organic synthesis of unique biologically active compounds
发明人：MCALPINE SHELLI R; TAYLOR RACHEL E; BOLLA MEGAN L; SEGALL ANCA M
摘要:The invention provides a method for making a combinatorial library of cyclic compounds, such as Holliday junction-trapping compounds, comprising the steps of (a) obtaining a plurality of trimers according to the generic structure X 1- X 2- X 3 , wherein X 1 , X 2 and X 3 can be independently any naturally or nonnaturally occurring amino acids or peptidomimetics thereof; (b) optionally coupling a spacer S to the trimer at either end; (c) cyclizing two trimers or trimer-spacer conjugates in a head-to-tail orientation; thereby obtaining a combinatorial library of compounds, wherein the library does not include an unmodifed or naturally occurring Holliday Junction-trapping compounds. The invention additionally provides methods macrocyclic compounds that are synergimycin derivatives.

专利号:US-12054413-B2
优先权日:2021-05-19
标 题:Method for purification of water and water purification system
发明人：BAKHIR VITOLD; PAPENBROCK JAN; MÖNNINGHOFF CHRISTIAN
权利人:BLUE SAFETY GMBH
摘要:The invention relates to a method and a system for purification of water in a water purification system. The water purification system comprises first and second mixing reactors, first and second flotation reactors and first and second filters all serially and fluidly connected in a flow direction of the water as well as an electrolyzer. During the process, electrochemical synthesis of the reagents takes place in the cathode and anode chambers of the electrolyzer, respectively. Moreover, the electrochemically synthesized catholyte and anolyte are dosed into the water kept in the first and second mixing reactors, respectively. Then the mixtures in the first and second mixing reactors are mixed. After that, the flow of the treated water leaving the mixing reactors is passed through the first and second flotation reactors and afterwards through the first and second filters downstream of the first and second mixing reactors.

专利号:US-10329590-B2
优先权日:2014-05-13
标 题 :Method of producing nylon
发明人：HAAS THOMAS; ECKL EVA-MARIA; BECK SIMON
权利人:EVONIK DEGUSSA GMBH
摘要:There is provided a method of producing aminohexanoic acid and/or aminohexanoic acid ester from synthesis gas, the method comprising:n A. contacting the synthesis gas with at least one bacteria capable of carrying out the Wood-Ljungdahl pathway and the ethanol-carboxylate fermentation to produce hexanoic acid; and B. contacting the hexanoic acid with a genetically modified cell to produce aminohexanoic acid and/or aminohexanoic acid ester, wherein the genetically modified cell has an increased activity, in comparison with its wild type, of alkane monooxygenase, alcohol dehydrogenase, and ω-transaminase.