CAS: 3483-11-2; Lithium 3-Oxobutanoate

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📜乙酰乙酸乙酯置于lithium Hydroxide体系中,化学反应 4.0H,以2.23 G的收率获得产物乙酰乙酸锂
参考文献:大肠杆菌产生的挥发性倍半萜烯的纯化和结构分析,其中带有未鉴定的萜烯合酶基因,该基因来自金莲花科的食用植物.
标题:大肠杆菌产生的挥发性倍半萜烯的纯化和结构分析,其中带有未鉴定的萜烯合酶基因,该基因来自金莲花科的食用植物.
摘要:利用携带已知倍半萜合酶(tps)基因zzzss2(zss2)和zotps1的细胞,开发了一种从重组大肠杆菌中纯化挥发性倍半萜烯的简单方法.该方法适用于大肠杆菌细胞产生的挥发性倍半萜的纯化和结构分析,所述大肠杆菌携带未鉴定的tps基因,该基因从araliaceae科的aralia属食用植物中分离出来.在两层培养基(正辛烷/ Tb培养基)中培养携带每个tps基因的重组细胞,并通过两相分配,硅胶柱色谱法和反相制备型高效液相色谱法纯化捕获在正辛烷中的挥发性倍半萜烯.高效液相色谱法(如果需要).此外,它们的结构已通过核磁共振[α] D,和气相色谱-质谱分析.在本文中,研究了在araria Cordata" Udo"中携带两个tps基因(分别命名为actps1和actps2)和在aralia Elata" Taranoki"中携带两个tps基因(命名为aetps1)的大肠杆菌细胞产物,从而鉴定了这些隐性tps的功能.基因.
DOI:10.1080/09168451.2017.1386085

专利信息

专利号:US-5484949-A
优先权日:1993-01-29
标题:Method for the synthesis of α β-unsaturated ketones
发明人：TSUKASHIMA KEIICHI; NAKAJIMA MASASHI; FUJIMARU MASAYOSHI; SUZUKI KENJI
权利人:NIPPON SODA CO
摘要:The present invention relates to a method for the synthesis of alpha , beta -unsaturated ketones which comprises, in the method for the synthesis of alpha , beta -unsaturated ketones represented by general formula reacting aldehydes represented by general formula R1CHO (where R1 is as defined above) with alkali metal salt of acetoacetic acid represented by general formula sence as a catalyst of 3-azabicyclo[3,2,2]nonane, a cyclic secondary amine represented by general formula (1) (1) a cyclic secondary amine represented by general formula (2) (2) (where, l is 1 or more and up to 6, a ring with N is a 6-membered, 7-membered or 8-membered ring, the two neighbors of N are methylene, R3 is a lower alkyl group, its substitution position is at a carbon atom other than two those adjacent to N, and is an alicyclic group or a phenol group), or a secondary amine represented by general formula (3) CH3NHCH2R4(3) in a mixuture solvent of water and water-insoluble organic solvent, while keeping the pH constant with mineral acid, and by adjusting an amount of water.

专利号:US-2018105838-A1
优先权日:2015-03-11
标 题:Process for de novo microbial synthesis of terpenes
发明人：SCHRADER JENS; BUCHHAUPT MARKUS; SONNTAG FRANK; KRONER CORA; BRÃœSER HEIKE; Schröder Hartwig; PELZER RALF
权利人:BASF SE
摘要:The invention relates to microbial terpene production. Known methods for microbial production of terpenes are mostly based on the direct conversion of sugars. Therefore alternative substrates, in particular alternative carbon sources, for use in microbial terpene production were desirable. The invention relates to a methylotrophic bacterium containing recombinant DNA coding for at least one polypeptide with enzymatic activity for heterologous expression in said bacterium, wherein said at least one polypeptide with enzymatic activity is selected from the group consisting an enzyme of a heterologous mevalonate pathway, a heterologous terpene synthase and optionally a heterologous synthase of a prenyl diphosphate precursor. The invention further relates in particular to a method for de novo microbial synthesis of sesquiterpenes or diterpenes from methanol and/or ethanol.

专利号:US-2012168686-A1
优先权日:2009-09-03
标 题:Continuous Synthesis of Carbon-Coated Lithium-Iron-Phosphate
发明人：METZ HANS JOACHIM; WASER OLIVER; BUECHEL ROBERT; PRATSINIS SOTIRIS E
权利人:METZ HANS JOACHIM; WASER OLIVER; BUECHEL ROBERT; PRATSINIS SOTIRIS E; CLARIANT FINANCE BVI LTD
摘要:The invention relates to a continuous process for preparing carbon-coated lithium-iron-phosphate particles, wherein the carbon-coated lithium-iron-phosphate particles have a mean (d 50 ) particle size of 10 to 150 nm, and wherein the carbon-coating is an acetylene-black coating, comprising performing in a reactor a flame-spray pyrolysis step (i) in a particle formation zone of the reactor, and a carbon-coating step (ii) in a carbon-coating zone of the reactor, wherein inn (i) a combustible organic solution containing a mixture of lithium or a lithium compound; iron or an iron compound; and phosphorus or a phosphorous compound in an organic solvent, is fed through at least one nozzle where said organic solution is dispersed, ignited and combusted, to give a flame spray thereby forming an aerosol of lithium iron phosphate particles; (ii) acetylene gas is injected into said aerosol thereby forming an acetylene-black coating on the lithium iron phosphate particles; (iii) the coated particles are cooled by an inert quench gas and collected on a filter.

专利号:WO-2011026581-A1
优先权日:2009-09-03
标题:Continuous synthesis of carbon-coated lithium-iron-phosphate

专利号:CN-107429223-A
优先权日:2015-03-11
标 题 :Methods for de novo microbial synthesis of terpenoids

专利号:EP-0454867-A1
优先权日:1989-11-17
标 题:METHOD FOR SYNTHESIS OF KETONES -g (a), -g (b) -UNSATURATED.