📜(2-甲基-1-庚烯-3-基)甲基碳酸酯置于tris(Dibenzylideneacetone)Dipalladium(0) Chloroform Complex,三丁基膦 甲酸,三乙胺体系中,用 四氢呋喃 用作溶剂,化学反应 1.5H,以53%的收率获得2-甲基-1-庚烯 参考文献:Preparation Of 1-Alkenes By The Palladium-Catalyzed Hydrogenolysis Of Terminal Allylic Carbonates And Acetates With Formic Acid-Triethylamine 标题:Preparation Of 1-Alkenes By The Palladium-Catalyzed Hydrogenolysis Of Terminal Allylic Carbonates And Acetates With Formic Acid-Triethylamine 摘要:描述了一种通过与甲酸盐的钯催化反应,从末端烯丙基碳酸酯和醋酸酯制备1-烯烃的有效方法.甲酸-三乙胺是一种合适的还原剂.作为催化剂,Pd₂(Dba)₃chcl₃-P(N-Bu)₃表现出了最佳效果,0.05到0.2Mol%足够(周转数500到2000).使用这种方法,可以以非常好的收率和高的选择性制备多种1-烯烃. Doi:10.1055/s-1986-31723
专利号:US-6794534-B2 优先权日:2000-06-23 标题:Synthesis of functionalized and unfunctionalized olefins via cross and ring-closing metathesis 发明人:GRUBBS ROBERT H; CHATTERJEE ARNAB K; MORGAN JOHN P; SCHOLL MATTHIAS; CHOI TAE-LIM 权利人:CALIFORNIA INST OF TECHN 摘要:The invention is directed to the cross-metathesis and ring-closing metathesis reactions between geminal disubstituted olefins and terminal olefins, wherein the reaction employs a Ruthenium or Osmium metal carbene complex. Specifically, the invention relates to the synthesis of α-functionalized or unfunctionalized olefins via intermolecular cross-metathesis and intramolecular ring-closing metathesis using a ruthenium alkylidene complex. The catalysts preferably used in the invention are of the general formula n wherein: n M is ruthenium or osmium; n X and X 1 are each independently an anionic ligand; n L is a neutral electron donor ligand; and, n R, R 1 R 6 , R 7 , R 8 , and R 9 are each independently hydrogen or a substituent selected from the group consisting of C 1 -C 20 alkyl, C 2 -C 20 alkenyl, C 2 -C 20 alkynyl, aryl, C 1 -C 20 carboxylate, C 1 -C 20 alkoxy, C 2 -C 20 alkenyloxy, C 2 -C 20 alkynyloxy, aryloxy, C 2 -C 20 alkoxycarbonyl, C 1 -C 20 alkylthio, C 1 -C 20 alkylsulfonyl and C 1 -C 20 alkylsulfinyl.
专利号:US-8569560-B2 优先权日:2006-10-13 标题 :Synthesis of terminal alkenes from internal alkenes via olefin metathesis 发明人:SCHRODI YANN; PEDERSON RICHARD L; KAIDO HIROKI; TUPY MICHAEL J 权利人:ELEVANCE RENEWABLE SCIENCES 摘要:This disclosure relates generally to olefin metathesis, and more particularly relates to the synthesis of terminal alkenes from internal alkenes using a cross-metathesis reaction catalyzed by an olefin metathesis catalyst. According to one aspect, for example, a method is provided for synthesizing a terminal olefin, the method comprising contacting, in the presence of a ruthenium alkylidene metathesis catalyst, an olefinic substrate comprised of at least one internal olefin with a cross metathesis partner comprised of an alpha olefinic reactant, under reaction conditions effective to allow cross-metathesis to occur, wherein the reaction conditions include a reaction temperature of at least 35° C. The methods, compositions, reactions and reaction systems herein disclosed have utility in the fields of catalysis, organic synthesis, and industrial chemistry.
专利号:US-10005720-B2 优先权日:2013-04-05 标题:Compounds useful for the treatment of metabolic disorders and synthesis of the same 发明人:SEXTON JONATHAN Z; BRENMAN JAY E; MUSSO DAVID L 权利人:NORTH CAROLINA CENTRAL UNIV; UNIV NORTH CAROLINA CHAPEL HILL 摘要:The present invention provides compounds of Formula (I): wherein variables X, Y, Z and R1 are as described herein. Some of the compounds described herein are glutamate dehydrogenase activators. The invention is also directed to pharmaceutical compositions comprising these compounds, uses of these compounds and compositions in the treatment of metabolic disorders as well as synthesis of the compounds.
专利号:US-6610802-B2 优先权日:2001-05-29 标题 :Process for synthesis of polymer compositions, polymer compositionS obtainable by the process, and use of the same 发明人:ROOS SEBASTIAN; EISENBERG BORIS; HARPE CAROLIN 权利人:ROHMAX ADDITIVES GMBH 摘要:The present invention relates to a process for synthesis of polymer compositions with reduced catalyst content, wherein ethylenically unsaturated monomers containing less than 0.5 wt % of ethylenically unsaturated monomers with at least one carboxylic group, sulfonic acid group and/or at least one phosphonic acid group relative to the total weight of the ethylenically unsaturated monomers are polymerized by means of initiators containing a transferable group of atoms and of one or more catalysts comprising at least one transition metal in the presence of ligands which can form a coordination compound with the metal catalyst or catalysts and, after the polymerization, the catalyst contained in the polymer is at least partly separated. For this purpose, the polymer composition is filtered, after the polymerization, in the presence of at least one filter aid which contains at least 0.5 wt %, relative to the total weight of the filter aid, of repeating units that contain at least one carboxylic acid group, sulfonic acid group and/or at least one phosphonic acid group.
专利号:US-10961273-B2 优先权日:2016-08-16 标 题 :N-carboxyanhydride-based-scale synthesis of elamipretide 发明人:DUNCAN SCOTT M; OUDENES JAN; ANDERSEN MARC W 权利人:STEALTH BIOTHERAPEUTICS CORP 摘要:Disclosed are methods of making elamipretide (MTP-131), a peptide compound with therapeutic potential for treating various mitochondrial myopathies. The synthesis of the peptide can be achieved via the use of N-carboxyanhydride-modified amino acid residues, which increases the efficiency of the synthetic process and the purity of the peptide product generated.
专利号:US-6610801-B1 优先权日:2000-11-13 标题:Processes for synthesis of polymer compositions 发明人:SCHERER MARKUS 权利人:ROHMAX ADDITIVES GMBH 摘要:The present invention relates to processes for synthesis of poly(meth)acrylate compositions, wherein ethylenically unsaturated monomers are transformed to polymers by means of initiators containing a transferable group of atoms and of one or more catalysts comprising at least one transition metal in the presence of ligands which can form a coordination compound with the metal catalyst or catalysts, wherein ethylenically unsaturated monomers containing 50 to 100 wt %, relative to the total weight of ethylenically unsaturated monomers, of (meth)acrylates of formula (I) are polymerizedwherein R denotes hydrogen or methyl, R1 denotes a straight-chain or branched alkyl group with 8 to 40, carbon atoms, R2 and R3 independently denote hydrogen or a group of the formula -COOR1, wherein R' denotes hydrogen or a straight-chain or branched alkyl group with 8 to 40, carbon atoms, in the presence of copper, the total concentration of copper of oxidation numbers (I) and (II) in the polymerization composition being <=200 ppm relative to the total weight of the composition.
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