CAS: 112-12-9; 2-Undecanone

相似化合物

1653-30-1 111-13-7 593-08-8

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1-十一烯置于叔丁基过氧化氢体系中,用 甲醇,二甲基亚砜 用作溶剂,以75 %的收率获得2-十一酮
参考文献:钯基双金属多相催化剂常压催化烯烃选择性氧化
标题:钯基双金属多相催化剂常压催化烯烃选择性氧化
摘要:通过浸渍和高温氢还原制备了pd基双金属催化剂.采用 Xrd,Tem,Hr-Tem 和 Xps 对新制备的催化剂进行了表征,并在烯烃瓦克氧化反应体系中进行了评价.在新型催化剂存在下,在叔丁基过氧化氢(tbhp)和空气的协同氧化作用下,一系列烯烃被氧化为相应的酮.还通过催化剂回收和热过滤测试研究了催化剂的稳定性和反应体系的非均质性.催化剂的性能与pd和cu之间以及金属和载体之间的相互作用相关. Tbhp和空气的协同效应在反应中得到证实.在所开发的体系中实现了烯烃(包括芳基烯烃和环烯烃)的瓦克型氧化.低碳烯烃和环烷烃的收率有待提高.
Doi:10.1039/d4Nj00638K

专利信息

专利号:WO-2024130393-A1
优先权日:2022-12-21
标 题 :Nanoparticle and method of synthesis thereof
发明人：MOSKOVCHENKO SVITLANA
权利人:MOSKOVCHENKO SVITLANA
摘要:The present technology relates to nanoparticles, compositions comprising said nanoparticles, and methods of synthesis of said nanoparticles; wherein the nanoparticles comprise a metal nanoparticle core, a first coating of amphiphilic molecules, and a second coating of essential oil, essential oil primary constituent, or both, which combine the antimicrobial properties of metal nanoparticles, amphiphilic molecules, and essential oil or essential oil primary constituents.

专利号:US-5369017-A
优先权日:1994-02-04
标题 :Process for solid phase glycopeptide synthesis
发明人：WONG CHI-HUEY; SCHUSTER MATTHIAS
权利人:SCRIPPS RESEARCH INST
摘要:A process for the synthesis of a glycopeptide using a solid phase matrix is disclosed. The matrix is compatible with aqueous and organic solvents and is comprised of a silica-based solid support to which is linked a two-part spacer group having a chain length of about 12 to about 40 methylene groups. The first part of the spacer is covalently bonded to the silica-based support and has a length of about 3 to about 10 methylene groups. The second spacer part is covalently bonded to the first part of the spacer and comprises the distal end of the two part spacer. The second part is soluble as a free molecule in each of water, dimethylformamide and dichloromethane and has a terminal amine or hydroxyl group to which the C-terminal residue of the peptide portion of the glycopeptide chain is bonded. The chain of atoms connecting the desired glycopeptide to the solid phase matrix also includes a moiety having a selectively severable bond which on cleavage of that bond separates the matrix from whatever else is bonded to that moiety.

专利号:US-5350681-A
优先权日:1986-08-18
标题 :Enzymatic membrane method for the synthesis and separation of peptides
发明人：IACOBUCCI GUILLERMO A; BROSE DANIEL J; RAY RODERICK J; VAN EIKEREN PAUL
权利人:COCA COLA CO
摘要:The present invention discloses a method for the enzymatic synthesis of a peptide. A protected peptide having a C-terminal carboxylate group or a protected, N-acyl amino acid having an alpha carboxylate group is reacted with a protected peptide having an N-terminal ammonium group or a protected amino acid having an alpha ammonium group in the presence of a condensation enzyme under conditions in which the carboxylate group and the ammonium group condense to form a protected, uncharged, peptide product. This peptide product is transported across a water-immiscible hydrophobic phase into an aqueous product phase and prevented from back diffusing across the water-immiscible hydrophobic phase. The peptide product can be converted, chemically or enzymatically, to a charged species that cannot back diffuse across the water-immiscible phase into the aqueous reaction phase. The water-immiscible hydrophobic phase is an ion rejection membrane separating the aqueous reaction phase from the product phase creating oil/water interfaces with each of the aqueous phases.

专利号:US-5002871-A
优先权日:1986-08-18
标 题:Enzymatic membrane method for the synthesis and separation of peptides
发明人：IACOBUCCI GUILLERMO A
权利人:COCA COLA CO
摘要:The present invention provides a membrane method for the enzymatic synthesis of peptides accomplished by shifting the chemical equilibrium that exists in a reaction mixture between charged or ionized reacting amino acids and uncharged or non-ionized peptide product in the presence of a proteolytic enzyme such as thermolysin. The equilibrium is shifted by diffusion of the unchanged peptide product across an ion-rejection membrane which removes the uncharged peptide from the reaction mixture and preferably the diffused uncharged peptide is quickly converted to a charged species that cannot back-diffuse into the reaction mixture so that the uncharged peptide is effectively 'pulled' across the membrane. An enzymatic conversion of the uncharged species utilizing an esterase having proteolytic activity such as aminoacylase I is disclosed. Copermeating reactants can be separated from the product mixture and returned to the reaction mixture. Also, the ion-rejection membrane can be utilized to resolve enantiomers of racemic carboxylic acids including D,L-amino acids.

专利号:EP-1313870-B8
优先权日:2000-08-30
标 题 :Method for the improved production and isolation of trans-dihydroxycyclohexadiene carboxylic acids and/or derivatives thereof and a genetically modified organism suitable for the above
发明人：FRANKE DIRK; SPRENGER GEORG; LORBACH VOLKER; TAKORS RALF; MUELLER MICHAEL; HALFAR MARKUS; MUELLER ROLF; THOEMMES JOERG
权利人:FORSCHUNGSZENTRUM JUELICH GMBH
摘要:In the production of genetically-modified, non-pathogenic organisms particularly an improved production and isolation of trans-dihydroxycyclohexadiene carboxylic acids and/or derivatives thereof, the synthesis of the transhydroxy cyclohexadiene carboxylic acids is performed in an enantiomer-pure form without detectable impurities with chorismate by cultivation of at least one genetically altered non-pathogenic organism which has an aromate embolism and has, in comparison with a corresponding, genetically not altered organism, an increased activity of the isochorismate synthase (EntC) and isochorismatase (EntB) and an activity of the 2,3 dihydroxybenzoate synthase (EntA) which is close to zero, or an increased activity of the isochorismatase (EntB) and a reduced activity of the isochorismate synthase (EntC) and an activity of the 2,3-dihydroxybenzoat-synthase (entA) of close to zero.

专利号:US-8541626-B2
优先权日:2012-01-24
标题:Method for synthesis of ketones from plant oils
发明人：JACKSON MICHAEL A; CERMAK STEVEN C
权利人:JACKSON MICHAEL A; CERMAK STEVEN C; US AGRICULTURE
摘要:Ketones may be produced in high yields from glycerides of short chain fatty acids by reaction with a carboxylic acid. The reaction is conducted in the presence of a catalyst and under conditions effective for ketonization of decanoate with the carboxylic acid to produce free ketones. Reaction of a glyceride comprising at least one ester of decanoic acid with a carboxylic acid selected from acetic acid and/or propionic acid produces 2-undecanone and/or 3-dodecanone, respectively. Catalysts of the formula Fe m Ce n Al p O x , wherein m is between about 0.2 to about 0.6, n is about 0.2, p is between about 0.6 to about 0.2, and x is greater than 0, produce significantly higher yields of the ketones than other known metal oxides.