SO2F2-mediated deoxygenative C2-sulfonylation of quinoline N-oxides with sodium sulfinates
作者:Chengmei Ai、Xudong Liao、Yi Zhou、Zhaohua Yan、Sen Lin
DOI:10.1016/j.tetlet.2020.152586
日期:2020.12
A mild and efficient method for deoxygenative C2-sulfonylation of quinoline N-Oxides in the presence of a base has been developed employing extremely inexpensive SO2F2 as an activator and sodium sulfinate as nucleophilic sulfonylation source. It is noteworthy that the reaction proceeded well under metal- and oxidant-free conditions to give a variety of 2-sulfonylquinolines in medium to good yields
已经开发了一种温和有效的方法,该方法在碱存在下,使用极其便宜的SO 2 F 2作为活化剂,并使用亚磺酸钠作为亲核磺酰化源,对喹啉N-氧化物的C2-磺酰化进行脱氧。值得注意的是,该反应在无金属和无氧化剂的条件下进行得很好,以中等至良好的产率得到了各种2-磺酰基喹啉。
[EN] HIGH HEAT MONOMERS AND METHODS OF USE THEREOF<br/>[FR] MONOMÈRES À CHALEUR ÉLEVÉE ET LEURS PROCÉDÉS D'UTILISATION
申请人:SABIC GLOBAL TECHNOLOGIES BV
公开号:WO2016014536A1
公开(公告)日:2016-01-28
High purity epoxide compounds, methods for preparing the high purity epoxide compounds, and compositions derived from the epoxide compounds are provided. Also provided are materials and articles derived from the epoxide compounds.
Epoxy resin compositions, methods of making same, and articles thereof
申请人:Dow Global Technologies LLC
公开号:EP2746312A2
公开(公告)日:2014-06-25
Epoxy resins comprising a diglycidyl ether of Formula 1 as defined herein are described. The diglycidyl ether contains a cycloaliphatic ring of 3-5 carbon atoms. The epoxy resins are made by a method comprising the steps of: (a) forming a reaction mixture comprising a diol of Formula 3 as defined herein, an epihalohydrin, a phase transfer catalyst, and optionally an organic solvent; (b) contacting a basic acting substance and water with the reaction mixture of step (a); (c) washing the mixture of step (b) with an aqueous solvent to substantially remove salts; and (d) isolating the epoxy resin. Curable and cured compositions comprising the epoxy resins are also disclosed. The epoxy resins have increased glass transition temperatures and reduced viscosity compared to epoxy resins derived from cyclohexanedimethanol.
High purity epoxide compounds, methods for preparing the high purity epoxide compounds, and compositions derived from the epoxide compounds are provided. Also provided are materials and articles derived from the epoxide compounds.