CAS: 15484-44-3; Sodium 2-Chloroethanesulfonate

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14533-63-2 5325-43-9 55947-46-1

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CAS号107-06-2 1,2-二氯乙烷 | CAS号7757-83-7 无水亚硫酸钠 | CAS号78303-70-5 2-hydroxyethane... | CAS号110-86-1 吡啶

专利信息

专利号:US-4143050-A
优先权日:1977-01-05
标题 :Manufacture of 3-halosulfonylthiophene-carboxylic acid compounds
发明人：ROSSY PHILLIP A; HOFFMANN WERNER; MUELLER NORBERT
权利人:BASF AG
摘要:3-Halosulfonylthiophene-carboxylic acid compounds are manufactured by reacting 3-ketothiophane-carboxylic acid compounds with sulfonic acid compounds, reacting the end product from the 1st reaction stage with alkali metal polysulfides, reacting the end product from the 2nd stage with a dehydrogenating agent and finally reacting the end product from the 3rd stage with halogen and water. The products are starting compounds for the manufacture of drugs, dyes and crop protection agents and have an anti-inflammatory, analgesic and anti-rheumatic action. In particular, the end products I are starting materials for the manufacture of sweeteners which are non-toxic and free from an after-taste, flavor-improving agents, diabetic aids and feedstuffs, and provide the means of a simple and economical synthesis of thiophene-saccharins.

专利号:US-7847092-B2
优先权日:2004-12-15
标题:Method for preparation of F-18 containing organofluoro compounds in alcohol solvents
发明人：MOON DAE HYUK; CHI DAE YOON; KIM DONG WOOK; OH SEUNG JUN; RYU JIN-SOOK
权利人:FUTURECHEM CO LTD; ASAN FOUNDATION
摘要:The present invention relates to a method for preparation of organofluoro compounds containing radioactive isotope fluorine-18. More particularly, the present invention relates to a method for preparation of primary or secondary organofluoro compound by reacting fluorine salt containing radioactive isotope fluorine-18 with primary or secondary alkyl halide or primary or secondary alkyl sulfonate in the presence of alcohol of Chemical Formula 1 as a solvent to obtain high yield of organofluoro compound. Synthesis reaction according to the present invention may be carried out under mild condition to give high yield of the organofluoro compounds and the reaction time is decreased, and thereby is suitable for the mass production of the organofluoro compounds.

专利号:US-6372088-B1
优先权日:1999-03-31
标 题:Enhancer performance for PEO
发明人：LAIVINS GUNAR V; POLVERARI MARCO
权利人:PULP AND PAPER RESERCH INST OF
摘要:A process is disclosed for the production of paper and paper-like products from a suspension of papermaking materials to which poly(ethylene oxide) and a phenolic type cofactor which may be produced by a Williamson synthesis from a resin, are added to improve the retention of fibers, of fines, of dispersed extractives and of fillers during the processes of water removal for the manufacturing of paper.

专利号:EP-1261350-A4
优先权日:2000-02-18
标题:METHODS OF SYNTHESIS OF 2-CHLORO-9- (2-DEOXY-2-FLUORO- $ G (B) -D-ARABINOFURANOSYL) - i 9H / i -PURINE-6-AMINE

专利号:US-6986960-B2
优先权日:2001-11-22
标题 :Poly (arylene ether sulfone) having sulfoalkoxy group, process of producing the same, and polymer electrolyte membrane comprising the same
发明人：OGURI MOTOHIRO; IKEDA RYUJI; OKISAKI FUMIO
权利人:TOSOH CORP
摘要:A novel poly(arylene ether sulfone) having a sulfoalkoxy group, which has both of heat resistance and electroconductivity, is suitable as polymer electrolyte membranes used for high performance polymer electrolyte fuel cells, and does not use fluorine so that loads to the environment are small in the synthesis or disposal, a process of producing the same, and a polymer electrolyte membrane comprising the same. The poly(arylene ether sulfone) having a sulfoalkoxy group has a structural unit represented by the formula (1) mentioned hereinabove, and is produced by reacting a poly(arylene ether sulfone) having a hydroxyl group with a specific alkali metal compound and/or an organic base compound, followed by reacting with a specific sulfonating agent and then with a specific acid. A polymer electrolyte membrane is produced by film formation of the polymer.

专利号:CN-111495423-A
优先权日:2020-04-22
标 题 :Immobilized functionalized ionic liquid catalyst and its application in the synthesis of diphenyl carbonate