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-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.
专利号:US-2007015798-A1 优先权日:2005-02-25 标 题 :Efficient and stereoselective process for large scale synthesis of (3R)-3-(2,3-dihydrobenzofuran-5-yl)-1,2,3,4-tetrahydropyrrolo[3,4-b]quinolin-9-one derivatives 发明人:LI XUN; LEMAIRE SEBASTIEN; MARKO ISTVAN; WILLEMSENS ALBERT 权利人:LI XUN; LEMAIRE SEBASTIEN; MARKO ISTVAN; WILLEMSENS ALBERT 摘要:This invention relates to an efficient process for large scale stereoselective production of (3R)-3-(2,3-dihydrobenzofuran-5-yl)-1,2,3,4-tetrahydropyrrolo[3,4-b]quinolin-9-ones and key intermediates used for the preparation of benzofuranyl pyrroloquinolones as potent and selective PDE5 inhibitors for the treatment of erectile dysfunction, as well as pharmaceutical compositions and methods of treatment utilizing these compounds.
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-5220062-A 优先权日:1991-05-06 标 题 :Process for the preparation of benezenesulfonamides 发明人:MEYER WILLY; SIEGRIST URS 权利人:CIBA GEIGY CORP 摘要:There is disclosed a multi-step process for the preparation of benzenesulfonamides of general formula ##STR1## wherein R is 3,3-difluorobutyl or 3,3-difluorobuten-1-yl. The benzenesulfonamides obtainable by the process of the invention are intermediates for the synthesis of herbicidally active sulfonyl ureas.