CAS: 26576-85-2; 1-Butyl-3-Methylpyridin-1-Ium Bromide

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125652-55-3 65350-59-6 874-80-6

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CAS号109-65-9 正溴丁烷 | CAS号108-99-6 3-甲基吡啶 | CAS号108-99-6 3-甲基吡啶 | CAS号74-98-6 丙烷 | CAS号106-97-8 丁烷 | CAS号712355-12-9 N-正丁基-3-甲基吡啶二氰胺盐

📜正溴丁烷,3-甲基吡啶 以 甲苯 用作溶剂,化学反应 17.0H,反应生成1-丁基-3-甲基吡啶溴化物
参考文献:Nitrogen-Containing Ionic Liquids: Biodegradation Studies And Utility In Base-Mediated Reactions
标题:Nitrogen-Containing Ionic Liquids: Biodegradation Studies And Utility In Base-Mediated Reactions
摘要:为了利用 "二氧化碳顶空 "试验(iso 14593)研究各种核心和取代基对生物降解性的敏感性,我们制备了几种离子液体(il).其中几种 Il 含有叔胺取代基,并作用作溶剂和试剂进行了几种碱介导反应的测试,包括 Suzuki-Miyaura,Sonogashira,Knoevenagel 和 Morita-Baylis-Hilman 反应.研究发现,虽然这些 Il 含有碱性官能团,但它们并不促进碱介导的反应.密度泛函理论分子计算证实,这些 Il 的质子化在能量上是不利的.
Doi:10.1071/ch14499

专利信息

专利号:WO-2024013423-A1
优先权日:2022-07-14
标题:Method for polyurethane depolymerization
发明人：LOZANO RODRÃ?GUEZ PEDRO; VILLA AROCA ROCÃ?O; SALAS VIDAL REBECA; GARCÃ?A-VERDUGO CEPEDA EDUARDO; MACIÃ? DELGADO MARÃ?A
权利人:UNIV MURCIA; UNIV JAUME I; ASOC EMPRESARIAL CENTRO TECNOLOGICO DEL MUEBLE Y LA MADERA DE LA REGION DE MURCIA
摘要:The present invention relates to a method for the depolymerization of a polyurethane mass, preferably thermoset polyurethane. The method comprises four main steps: i) mixing the polyurethane mass with a depolymerization reaction medium comprising an ionic liquid in a proportion equal to or greater than 50% w/w with respect to the total weight of said medium, a superbase as a catalyst, and a nucleophilic agent in a proportion equal to or less than 15% w/w with respect to the total weight of said medium, subjecting said mixture to a temperature between 50-100°C for between 2 minutes and 10 hours; ii) adding a mass of a protic molecular solvent in an amount between 4 and 40 times the weight of the depolymerization reaction medium; iii) subjecting the mixture from step ii) to a temperature between 20-60°C for at least 1 hour; and iv) separating the fractions obtained in step iii), namely, a semisolid fraction comprising at least a polyol mass for reuse in the synthesis of a new polyurethane, and a single-phase liquid fraction comprising at least the ionic liquid and the basic catalyst, for their reuse in a new process for polyurethane depolymerization.

专利号:FR-2941700-A1
优先权日:2009-02-02
标 题 :PROCESS FOR THE SYNTHESIS OF A BLOCK COPOLYMER ALLOY HAVING IMPROVED ANTISTATIC PROPERTIES

专利号:WO-2016113757-A1
优先权日:2015-01-15
标题:Novel recyclable iodinating agent and its applications
发明人：SWAMY VINCENT PAUL; DESHMUKH AMARSINH JAYAWANT; GORE PRANAV SOPAN; THULASIRAM HIREKODATHAKALLU V
权利人:COUNCIL SCIENT IND RES
摘要:The present invention provides a novel recyclable catalysts of formula A, [Formula A should be inserted here] wherein X is selected from the group consisting of [Formula should be inserted here] The present invention also provides a novel recyclable iodinating agent of formula I, II or III and a process for the synthesis thereof. [ Formula I, II & III should be inserted here] Further, the present invention provides a process of halogenation of amines and heterocyclic compounds by employing recyclable catalyst of formula (I).