专利号:US-7956011-B2 优先权日:2005-05-04 标题:Materials and methods for the photodirected synthesis of oligonucleotide arrays 发明人:SERAFINOWSKI PAWEL JERZY; GARLAND PETER BRYAN 权利人:CANCER RES INST ROYAL 摘要:Materials and methods for photodirected synthesis of oligonucleotide arrays on a solid substrate by photodirected synthesis are disclosed which employ a film formed from (i) a photoacid generator that on photolysis generates acid that is capable of directly removing the protecting group of the linker molecules or oligonucleotides and (ii) a polymer substantially lacking electronegative heteroatoms that are capable of hydrogen bonding with photogenerated acid. Methods of synthesizing an oligomer arrays are also described that use a film that restricts diffusion of reactants and products on the substrate during synthesis of the array and which includes a precursor of a deprotecting reagent. The method involves removing one or more of the non-required products of the deprotection reaction from the reactive array elements at which they are produced during the reaction, in order to displace the deprotection reaction towards completion.
专利号:WO-2024012791-A1 优先权日:2022-07-11 标题 :Electrochemical synthesis of pyrazolines and pyrazoles 发明人:BÄR ROBIN MAXIMILIAN; FORD MARK JAMES; KALDAS SHERIF JAMES; WALDVOGEL SIEGFRIED; HOFMANN SILJA; LINDEN MARTIN 权利人:BAYER AG 摘要:The present invention relates to an electrochemical process for the synthesis of pyrazolines and pyrazoles of formula (I). The process can be especially used for the synthesis of the herbicide safener mefenpyr-diethyl.
专利号:US-4167513-A 优先权日:1977-09-06 标题 :Synthesis of unsaturated esters and lactone from butadiene and carbon dioxide 发明人:MUSCO ALFREDO; SANTI ROBERTO; CHIUSOLI GIAN P 权利人:MONTEDISON SPA 摘要:Octadienyl esters of 2-ethylidene-hepta-3,5-dienoic and 2-vinyl-hepta-3,5-dienoic acids of formula C 8 H 11 COOC 8 H 13 and δ-lactone of formula ##STR1## or 2-ethylidene-hepta-6-ene-5-olide, are prepared by reaction of 1,3-butadiene with CO 2 at a temperature comprised between about 20° and 150° C. and at a total pressure between about 10 and 500 atm in the presence of a phosphinic complex of palladium having the formula Pd[P(R) 3 ] x , wherein x is an integer from 2 to 4, and (R) 3 is a homogeneous or heterogeneous group consisting of alkyls, cycloalkyls having up to 8 carbon atoms and of phenyls, also substituted, in an inert atmosphere. n The obtained products are 'per se' new and are valuable intermediates for synthesis of chemicals (fungicides, pesticides, etc.) and in particular as effective plasticizers.
专利号:US-6479599-B1 优先权日:1997-04-04 标题:Catalyst system for high yield synthesis of polyolefins 发明人:PEIL KEVIN P; WILSON DAVID R 权利人:BP CHEM INT LTD 摘要:This invention relates to a supported metallocene catalyst system for the high yield synthesis of polyolefins, to methods of preparation of the catalyst system, to polymerization processes which use the catalyst system and to polyolefin polymers produced by the polymerization processes.
专利号:US-4526992-A 优先权日:1984-10-18 标 题 :Synthesis of substituted dioxolanes by direct oxidation of olefins over molybdenum 8-hydroxyquinoline 发明人:LIN JIANG-JEN; SANDERSON JOHN R 权利人:TEXACO INC 摘要:The synthesis of substituted dioxolanes by direct oxidation of olefins over a molybdenum 8-hydroxyquinoline catalyst in the presence of water is described. An organic solvent such as chlorobenzene may also be employed. Water is essential to the reaction to make the dioxolanes, otherwise olefin oxides are produced. Hence, 4-methyl-1,3-dioxolane and 2,4-dimethyl-1,3-dioxolane were prepared from propylene oxidation, and three isomers of 2,4,5-trimethyl-1,3-dioxolane were prepared from 2-butene oxidation.
专利号:US-5420237-A 优先权日:1991-08-29 标 题:Enzymatic synthesis of polyaniline 发明人:ZEMEL HAYA; QUINN JOHN F 权利人:ALLIED SIGNAL INC 摘要:This invention relates to a process for the enzymatic synthesis of electrically conductive substituted and unsubstituted polyanilines. Aniline monomer(s), an oxidizing agent, which comprises an enzyme and an electron acceptor, and an acidifying agent are reacted together to form polyanilines.