Synthesis of crown compounds containing a 1,3,4-oxadiazole moiety: Microwave-assisted synthesis
作者:Moha Outirite、Mounim Lebrini、Michel Lagrenée、Fouad Bentiss
DOI:10.1002/jhet.201
日期:——
New macrocyclic polyether compounds containing a 2,5-bis(2-hydroxyphenyl)-1,3,4-oxadiazole moiety are quickly prepared by a nucleophilic substitution reaction involving ethylene glycol ditosylate or polyethylene glycol ditosylate and a biphenol, the 2,5-bis(2-hydroxyphenyl)-1,3,4-oxadiazole, with solid anhydrous potassium carbonate as a base under microwave irradiation (monomode and multimode). The
新的大环聚醚化合物包含 2,5-双(2-羟苯基)-1,3,4-恶二唑部分可通过涉及以下反应的亲核取代反应快速制备乙二醇二甲苯磺酸酯或聚乙二醇二甲苯磺酸酯和双酚2,5-双(2-羟苯基)-1,3,4-恶二唑,固体无水在微波辐射下(单模和多模)以碳酸钾为碱。通过1 H,13 C NMR,质谱和元素分析证实了新的大环聚醚化合物的结构。J.杂环化学。(2010)。