CAS: 616-02-4; 3-Methylfuran-2,5-Dione

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CAS号97-65-4 衣康酸 | CAS号498-23-7 柠康酸 | CAS号127-17-3 丙酮酸 | CAS号110-88-3 三聚甲醛 | CAS号108-30-5 丁二酸酐 | CAS号2170-03-8 衣康酸酐 | CAS号106-65-0 琥珀酸二甲酯 | CAS号3878-55-5 丁二酸单甲酯 | CAS号498-24-8 中康酸 | CAS号763-32-6 3-甲基-3-丁烯-1-醇 | CAS号1072-87-3 3-甲基吡咯-2,5-二酮 | CAS号498-23-7 柠康酸 | CAS号40834-42-2 4-甲基-5-羟基呋喃-2-酮 | CAS号6124-79-4 4-甲基-2(5H)-呋喃酮 | CAS号22122-36-7 3-甲基-2-(5H)-呋喃酮 | CAS号4100-80-5 2-甲基琥珀酸酐 | CAS号498-24-8 中康酸 | CAS号51149-08-7 3,6-二氯哒嗪-4-甲酸 | CAS号20537-97-7 2-methylbut-2-e... | CAS号189300-17-2 1-benzyl-3-meth...

乌头酸 反应生成 柠康酸酐
参考文献:Crasso,Justus Liebigs Annalen Der Chemie,1840,Vol. 34,P. 70
标题:Crasso,Justus Liebigs Annalen Der Chemie,1840,Vol. 34,P. 70

专利信息

专利号:US-2012184653-A1
优先权日:2011-01-18
标 题:Synthesis of linear phosphorus-containing functional fluorocopolymer
发明人：WANG LIANG; WANG VIKTORIA
权利人:WANG LIANG; WANG VIKTORIA
摘要:This invention relates to a synthesis of a linear fluorocopolymer having a plurality of pendant phosphorus-containing functional groups. The synthesized phosphorus-containing fluorocopolymer has chain linearity and narrow molecular weight distributions. It has applications as a lubricant additive that provides friction-reduction, anti-wear, and corrosion protection properties.

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-3703530-A
优先权日:1970-08-24
标 题 :Alkyl - 2 - alkyl - 2,3 - dicarboxy-5-norbornene - 7-acetate intermediates for the total synthesis of elenolic acids and analogs thereof
发明人：KELLY ROBERT C
权利人:UPJOHN CO
摘要:A TOTAL SYNTHESIS OF ELENOLIC ACID, FORMULA XIV (R AND R2 ARE HYDROGEN, R1 AND R3 ARE METHYL) AND THE ANALOGS THEREOF, OF FORMULA XIV: 3-(R3-O-),4-(R-OOC-CH(-R2)-),5-(HCO-),6-R1-5,6-DIHYDRO- 4H-PYRAN WHEREIN R AND R3 ARE ALKYL OF 1 TO 8 CARBON ATOMS, INCLUSIVE, WHEREIN R1 IS ALKYL OF 1 TO 4 CARBON ATOMS, INCLUSIVE, AND WHEREIN R2 IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL OF 1 TO 4 CARBON ATOMS, INCLUSIVE, IS CARRIED OUT BY A MULTI-STEP PROCESS STARTING FROM CYCLOPENTADIENE. COMPOUNDS OF FORMULA XIV HAVE VIRUCIDAL AND HYPOTENSIVE ACTIVITY AND CAN BE USED AS HYPOTENSIVE AGENTS IN MAMMALS (U.S. PAT. 3,033,877) OR AS VIRUCIDAL AGENTS TO DECONTAMINATE SURGICAL INSTRUMENTS, HOSPITAL WALLS, SWIMMING POOLS, OR CAN BE USED FOR NASAL WASHES IN MAMMALS.

专利号:US-6323311-B1
优先权日:1999-09-22
标题:Synthesis of insulin derivatives
发明人：LIU FENG; KIM SUNG WAN; BAUDYS MIROSLAV
权利人:UNIV UTAH RES FOUND
摘要:A method for the “one-potâ€? synthesis of insulin derivatives wherein insulin is modified at the α-amino group of the PheB1 residue is described. The method comprises protecting the α-amino group of the GlyA1 residue and the ε-amino group of the LysB29 residue by reaction of insulin with a cyclic anhydride of a dicarboxylic acid in the presence of a tertiary amine. The protected insulin is then reacted with an activated hydrophilic compound, preferably an activated polyethylene glycol, resulting in a conjugate of the hydrophilic compound coupled to the PheB1 residue of insulin. The protecting groups are then removed from the conjugate under mild acidic conditions, and the resulting insulin derivative can be purified by conventional methods. Monosubstituted insulin derivatives wherein polyethylene glycol or derivatives thereof or glycosides are coupled to the PheB1 residue of insulin are also described.

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.

专利号:US-6639029-B1
优先权日:2000-11-13
标 题 :Process for continuous synthesis of polymer compositions as well as use of same
发明人：SCHERER MARKUS; BOLLINGER JOSEPH MARTIN; COOPER JR DAVID J; TILLERY LARRY STEPHEN; WOODRUFF ROBERT
权利人:ROHMAX ADDITIVES GMBH
摘要:The present invention relates to a process for synthesis of polymer compositions, wherein ethylenically unsaturated monomers are polymerized by means of initiators containing a transferable atom or 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, the process being characterized in that the polymerization takes place by means of continuous process operation.