CAS: 1016-05-3; Dibenzo[b,D]Thiophene 5,5-Dioxide

相似化合物

83834-12-2 40307-15-1 53846-85-8

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CAS号51762-59-5 Dibenzothiophen...

二苯并噻吩置于水,Selectfluor体系中,用 乙腈 用作溶剂,化学反应 12.0H,以99%的收率获得二苯并噻吩砜
参考文献:以 H2O 为 O 源通过 Selectfluor 促进氧化可切换合成亚砜,砜和硫代磺酸盐
标题:以 H2O 为 O 源通过 Selectfluor 促进氧化可切换合成亚砜,砜和硫代磺酸盐
摘要:已经开发出一种实用且有效的方案,用于在环境温度下分别通过 Selectfluor 介导的硫化物和硫醇氧化合成亚砜,砜和硫代磺酸盐.所有这些有机硫化合物都可以通过使用环保的 H2O 作为 O 源以接近定量的收率制备.亚砜和硫代磺酸盐的形成仅需几分钟(3-20 分钟).正如对照实验所表明的,氧化过程可能通过硫化物的氟化,与 H2O 的亲核加成和氟化氢的消除来进行.
Doi:10.1055/a-1701-6700

专利信息

专利号:US-9453168-B2
优先权日:2009-06-11
标 题 :Synthesis of acidic silica to upgrade heavy feeds
发明人：CASTILLO KARINA; PARSONS JASON; CHIANELLI RUSSELL R
权利人:UNIV TEXAS
摘要:A method and a product made by treating a sulfur-containing hydrocarbon heavy feed, e.g., heavy crude asphaltene reduction is disposed herein. The method comprises the steps of: mixing the sulfur-containing hydrocarbon heavy feed with a hydrogen donor solvent and an addled silica to form a mixture and oxidizing the sulfur in the mixture at a temperature between 50° C. and 210° C. wherein the oxidation lowers the amount sulfur in the sulfur-containing hydrocarbon heavy feed by at least 90%.

专利号:US-11732090-B2
优先权日:2016-12-21
标 题:Poly(ether ketone ketone) polymers, corresponding synthesis methods and polymer compositions and articles made therefrom
发明人：LOUIS CHANTAL
权利人:SOLVAY SPECIALTY POLYMERS USA
摘要:Described herein are PEKK polymers having improved processability and improved crystallinity. It was surprisingly found that PEKK polymers formed using a specifically adapted nucleophilic synthesis route, in which different monomers are added in to the polymerization reaction at different points during the synthesis, had lower glass transition temperatures (“Tg†) and increased crystallinities, relative to PEKK polymers formed using traditional nucleophilic synthesis routes (“traditional PEKK polymers†). Furthermore, compared with PEKK polymers synthesized using an electrophilic synthesis routes, the PEKK polymers described herein and significantly lower halogen content. The synthesis routes includes a first heating of a first monomer blend in a reaction mixture, a subsequent first addition of a second monomer blend to the reaction mixture, and a second heating of the reaction mixture subsequent to the first addition.

专利号:WO-2018115033-A1
优先权日:2016-12-21
标题:Poly(ether ketone ketone) polymers, corresponding synthesis methods and polymer compositions and articles made therefrom
发明人：LOUIS CHANTAL
权利人:SOLVAY SPECIALTY POLYMERS USA
摘要:Described herein are PEKK polymers having improved processability and improved crystallinity. It was surprisingly found that PEKK polymers formed using a specifically adapted nucleophilic synthesis route, in which different monomers are added to the polymerization reaction at different points during the synthesis, had lower glass transition temperatures ('Tg') and increased crystallinities, relative to PEKK polymers formed using traditional nucleophilic synthesis routes ('traditional PEKK polymers'). Furthermore, compared with PEKK polymers synthesized using an electrophilic synthesis routes, the PEKK polymers described herein and significantly lower halogen content. The synthesis routes includes a first heating of a first monomer blend in a reaction mixture, a subsequent first addition of a second monomer blend to the reaction mixture, and a second heating of the reaction mixture subsequent to the first addition.

专利号:US-12202940-B2
优先权日:2016-12-21
标题:Poly (ether ketone ketone) polymers, corresponding synthesis methods and polymer compositions and articles made therefrom
发明人：LOUIS CHANTAL
权利人:SOLVAY SPECIALTY POLYMERS USA
摘要:Described herein are poly(ether ketone ketone) (“PEKK†) polymers having improved processability. It was surprisingly discovered that by selectively controlling the relative amounts of reactants during the synthesis, PEKK polymers having unexpectedly lower melt viscosities can be obtained. More particularly, by selectively controlling the relative amounts of monomers used to form recurring units of the PEKK polymer, in conjunction with selective control of other reaction components, the resulting PEKK polymers had reduced viscosities, relative to PEKK polymers synthesized by using tradition reaction schemes (“traditional PEKK polymers†). By providing PEKK polymers with lower melt viscosities, the PEKK polymers described herein have improved processability.

专利号:WO-2018115035-A1
优先权日:2016-12-21
标 题 :Poly(ether ketone ketone) polymers, corresponding synthesis methods and polymer compositions and articles made therefrom
发明人：LOUIS CHANTAL
权利人:SOLVAY SPECIALTY POLYMERS USA; SOLVAY
摘要:Described herein are poly(ether ketone ketone) ('PEKK') polymers having improved processability. It was surprisingly discovered that by selectively controlling the relative amounts of reactants during the synthesis, PEKK polymers having unexpectedly lower melt viscosities can be obtained. More particularly, by selectively controlling the relative amounts of monomers used to form recurring units of the PEKK polymer, in conjunction with selective control of other reaction components, the resulting PEKK polymers had reduced viscosities, relative to PEKK polymers synthesized by using tradition reaction schemes ('traditional PEKK polymers'). By providing PEKK polymers with lower melt viscosities, the PEKK polymers described herein have improved processability.

专利号:WO-2013052102-A1
优先权日:2011-10-03
标 题:Oxidation catalysts derived from heteropoly acids and quaternized nitrogen compounds, methods for synthesis and activation thereof, and methods for use thereof
发明人：ELLIS RICHARD; GRIMES PATRICK; DOVER JOHN
权利人:ALTERNATIVE PETROLEUM TECHNOLOGIES SA
摘要:Oxidation catalysts can be prepared from heteropoly acids and quaternized nitrogen compounds. The oxidation catalysts can be used in oxidation processes such as oxidative desulfurization, for example. Such oxidative desulfurization processes can comprise: providing an oxidation catalyst comprising a solid reaction product obtained from a reaction between a quaternized nitrogen compound and a heteropoly acid that has been at least partially neutralized with a base, the solid reaction product having a molar ratio of an alkali metal to phosphorus of less than about 1; combining the oxidation catalyst with an oxidizing agent and a petroleum source comprising an oxidizable sulfur compound; reacting at least a portion of the oxidizable sulfur compound to form an oxidized sulfur compound; and removing the oxidized sulfur compound from the petroleum source to form a reduced sulfur content petroleum product.