CAS: 10213-10-2; Sodium Tungstate Dihydrate

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CAS号7440-33-7 钨粉 | CAS号13862-78-7 四硫代钨酸铵 | CAS号13031-76-0 1,1-二氧代-3-羟基-四氢噻吩 | CAS号13520-78-0 六氯化钨(VI) | CAS号17075-14-8 2-(甲基磺酰基)吡啶 | CAS号7195-44-0 1,4-苯二甲酸双(环氧乙烷基甲基)酯 | CAS号57159-81-6 2-(甲基磺酰基)-(9ci)... | CAS号60263-96-9 2-[(2-methylphe... | CAS号60263-97-0 2-[(2-methylphe...

专利信息

专利号:US-7276637-B2
优先权日:2002-08-02
标题:Synthesis of cyclohexanone derivatives
发明人：BRANDS KAREL MARIE JOSEPH; DAVIES ANTONY JOHN; OAKLEY PAUL JOSEPH; SCOTT JEREMY PETER; SHAW DUNCAN EDWARD; TEALL MARTIN RICHARD
权利人:MERCK & CO INC
摘要:A novel process for preparing cyclohexanone derivatives of formula (I) n nis described. The products are useful as gamma secretase inhibitors, or as intermediates in the synthesis of other gamma secretase inhibitors.

专利号:WO-2024031876-A1
优先权日:2022-08-10
标题 :Method for one-step synthesis of methylcyclopentadiene from cyclopentanone and methanol
发明人：LI NING; ZOU ZHUFAN; LI GUANGYI; ZHANG TAO; WANG AIQIN; WANG XIAODONG; CONG YU
权利人:DALIAN INST CHEM & PHYSICS CAS
摘要:The present invention relates to a method for one-step synthesis of methylcyclopentadiene from cyclopentanone and methanol. Cyclopentanone and methanol are used as raw materials, and are subjected to a cascade dehydrogenation/aldol condensation/selective hydrodeoxygenation reaction in a continuous packed bed reactor under the action of an A x B y O z composite metal oxide catalyst, so as to synthesize a target product, i.e., methylcyclopentadiene. The present invention has a simple process line, is convenient for catalyst preparation, is environmentally friendly, and achieves direct conversion from cyclopentanone and methanol to high value-added methylcyclopentadiene.

专利号:US-12157751-B2
优先权日:2021-05-12
标题 :Process for the synthesis of oligomeric siloxane having sulfone moiety, and silicon-containing compounds having sulfone moiety
发明人：SINGHAL PRAVEEN KUMAR; TARAFDAR GOURAV; RAMESH APEKSHA
权利人:MOMENTIVE PERFORMANCE MAT INC
摘要:There is provided herein a process for the synthesis of sulfonyl silanes. There is also provided herein various sulfenylated and sulfonylated silicon-containing compounds made by the process.

专利号:US-7531694-B2
优先权日:2004-07-07
标题:Process for synthesis of 4-4′-diamino-diphenyl-sulfone
发明人：VILLA MARCO; DE FAVERI CARLA; ZANOTTI RICCARDO; CIARDELLA FRANCESCO; BORIN FABRIZIO
权利人:LUNDBECK PHARMACEUTICALS ITALY
摘要:A new process for the preparation and purification of 4-4′-diamino-diphenyl-sulfone (dapsone) is described. The process described is a three step process comprising a condensation reaction with the synthesis of a thioether intermediate and then steps of oxidation and reduction in suitable conditions in order to obtain a product with good yield and purity.

专利号:WO-2024091204-A1
优先权日:2022-10-27
标题 :An electrochemical method for the synthesis of high purity tungsten blue in solid form
发明人：SAHIN YUCEL; ARVAS MELIH BESIR; YAZAR AYDOGAN SIBEL
权利人:UNIV YILDIZ TEKNIK; ISTANBUL UNIV CERRAHPASA REKTORLUGU
摘要:The invention relates to a short-time, low-cost and environmentally friendly electrochemical method for the single-step synthesis of high purity tungsten blue using an electrochemical system. Said electrochemical system comprises a potentiostat (1), electrolyte (5), a working electrode (2) connected to the potentiostat (1) and immersed in the electrolyte (5), a counter electrode (3) connected to the potentiostat (1) and immersed in the electrolyte (5), and a reference electrode (4) connected to the potentiostat (1) and immersed in the electrolyte (5).

专利号:US-10807962-B2
优先权日:2017-04-14
标 题 :Process for the synthesis of firocoxib
发明人：CELESTINI PAOLO; BARETTI SERGIO; PIZZATTI ENRICA
权利人:COSMA S P A
摘要:The present invention concerns a process for the preparation of firocoxib, i.e. 3-(cyclopropylmethoxy)-5,5-dimethyl-4-(4-methylsulfonylphenyl)-furan-2-one, comprising steps (a)-(g), wherein the process provides for step (d) of the reaction of a new intermediate, i.e. 2-methyl-1-[4-(methylsulfanyl)phenyl]-1-oxopropan-2-yl (acetyloxy)acetate (compound VII) in the same organic solvent of step (a) in the presence of a catalyst and a phase transfer catalyst solution in the same organic solvent with hydrogen peroxide.