CAS: 100-84-5; 1-Methoxy-3-Methylbenzene

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2-Tert-Butylsulfonyl-1-Methoxy-3-Methylbenzene置于bis(Acetylacetonate)Nickel(II),异丙基氯化镁体系中,用 四氢呋喃 用作溶剂,化学反应 20.0H,以92%的收率获得间甲基苯甲醚
参考文献:Ortho-Substituted Unsymmetrical Biaryls From Aryl Tert-Butyl Sulfones
标题:Ortho-Substituted Unsymmetrical Biaryls From Aryl Tert-Butyl Sulfones
摘要:镍催化的芳基镁卤化物与叔丁基砜的偶联反应,尤其是通过邻锂化引入邻位取代基的叔丁基砜,可生成邻位取代的不对称联苯类化合物.
Doi:10.1039/c39930001682

专利信息

专利号:US-2015336866-A1
优先权日:2013-01-01
标题:Synthesis of difluoromethyl ethers and sulfides
发明人：HARTWIG JOHN; FIER PATRICK
权利人:UNIV CALIFORNIA
摘要:The synthesis of difluoromethyl ethers and sulfides with a simple, non-ozone-depleting reagent is described. The difluoromethylation of phenols with this reagent occurs at room temperature within minutes with exceptional functional group tolerance. The mild conditions makes possible tandem processes for the conversion of aryl boronic acids, aryl halides and arenes to difluoromethyl ethers. Mechanistic studies support a reaction pathway involving nucleophilic attack of the phenolate to difluorocarbene.

专利号:US-4110380-A
优先权日:1974-05-06
标题 :Asymmetric synthesis of organic compounds
发明人：HAJOS ZOLTAN GEORGE; PARRISH DAVID RICHARD
权利人:HOFFMANN LA ROCHE
摘要:Optically active organic compounds are prepared starting from optically inactive reactants by means of an optically active agent which influences the course of the reaction. In particular optically active compounds having a 'meso' type carbon atom undergo an intramolecular ring closure in the presence of an optically active agent to yield an optically active product having one additional ring. The present process is particularly useful in the preparation of optically active bicyclic diketones which are important intermediates in the total synthesis of steroids.

专利号:US-7125983-B2
优先权日:2000-11-29
标题:L-nucleic acid derivatives and process for the synthesis thereof
发明人：IIZUKA HAJIME; TOGASHI KAZUHIKO; SUZUKI TSUNEJI
权利人:MITSUI CHEMICALS INC
摘要:A novel method has been found to produce 2,2′-anhydro-1-(β-L-arabinofuranosyl)thymine as a novel useful intermediate compound. A novel method has been further found to produce thymidine from 2,2′-anhydro-1-(β-L-arabinofuranosyl)thymine. A novel method has been further found to L-2′-deoxyribose derivatives as a useful synthetic intermediate through L-2,2′-anhydro-5,6-dihydrocyclouridine derivative. According to these methods, synthesis of various L-nucleic acid derivatives, synthesis of which has been difficult till now.

专利号:US-5714127-A
优先权日:1992-10-08
标题 :System for multiple simultaneous synthesis
发明人：DEWITT SHEILA H H; KIELY JOHN S; PAVIA MICHAEL R; SCHROEDER MEL C; STANKOVIC CHARLES J
权利人:WARNER LAMBERT CO
摘要:A system for the multiple, simultaneous synthesis of compounds preferably uses a reaction apparatus comprising a reservoir rack having a plurality of reaction wells, a plurality of reaction tubes, usually gas dispersion tubes, having filters on their lower ends, a holder block, having a plurality of apertures, and a manifold, which has ports to allow introduction/maintenance of a controlled environment. The manifold top wall has a plurality of apertures in axial alignment with the reaction tubes and a gasket which allows penetration by a needle in order to dispense and aspirate materials from the reaction tubes. Sealing members, such as gaskets, are placed between the holder block, manifold and reservoir rack and the components are releasably fastened together. A robotic sample processor is used to automate the synthesis process using the reaction apparatus.

专利号:US-7786156-B2
优先权日:2004-01-28
标 题 :Synthesis methods and intermediates for the manufacture of Rizatriptan
发明人：MARTIN PIERRE; BERENS ULRICH; BOUDIER ANDREAS; DOSENBACH OLIVER
权利人:RATIOPHARM GMBH
摘要:The invention relates to a process for the manufacture of an 1,2,4-triazol-1-yl compound of the formula [A], n nor a salt thereof, wherein each of R3 and R4 is hydrogen or lower alkyl, said process comprising reacting a hydrazine compound of the formula [B]n n nwherein R is hydrogen or acyl, R2 is hydrogen or a protecting group, are hydrogen or lower alkyl, and R6 is hydrogen or COOR7, or a salt thereof, with a 1,2,4-triazolyl forming reagent.n n In addition, novel intermediates for the synthesis of the anti-migraine agent Rizatriptan and methods for their synthesis are presented.

专利号:US-5702672-A
优先权日:1992-10-08
标 题 :Apparatus and method for multiple simultaneous synthesis
发明人：DEWITT SHEILA H H; KELL MICHAEL; PAVIA MICHAEL R; KIELY JOHN S; SCHROEDER MEL C; STANKOVIC CHARLES J; WARE STEVEN
权利人:WARNER LAMBERT CO
摘要:An apparatus for multiple, simultaneous synthesis of compounds which consists of: a reservoir block having a plurality of wells; a plurality of reaction tubes, usually gas dispersion tubes, having filters on their lower ends; a holder block, having a plurality of apertures; and a manifold, which may have ports to allow introduction/maintenance of a controlled environment. The manifold top wall has apertures and a detachable plate with identical apertures. The apparatus is constructed from materials which will accommodate heating, cooling, agitation, or corrosive reagents. Gaskets are placed between the components. Rods or clamps are provided for fastening the components together. Apparatus operation involves placing the filters on the lower ends of the reaction tubes in the reservoir block wells, and the upper ends passing through the holder block apertures and into the manifold.