A Synthetic Pathway to Substituted Benzofuroxans through the Intermediacy of Sulfonates: The Case Example of Fluoro-Nitrobenzofuroxans
作者:Cyril Jovené、Jérome Marrot、Jean-Philippe Jasmin、Elena Chugunova、Régis Goumont
DOI:10.1002/ejoc.201600657
日期:2016.8
4‐Fluoro‐6‐nitrobenzofuroxan and 6‐fluoro‐4‐nitrobenzofuroxan have been prepared, for the first time, from fluorophenols and fluoroanisoles, two families of cheap and readily available chemicals. Due to the presence of methoxy and hydroxy groups, the key nitration step is easily achieved and dinitro compounds are obtained in good yields; these can then be used to prepare the phenyl azide intermediate
首次从氟酚和氟苯甲醚这两种廉价易得的化学品中制备了4-氟-6-硝基苯并呋喃和6-氟-4-硝基苯并呋喃。由于存在甲氧基和羟基,因此很容易完成关键的硝化步骤,并以高收率获得了二硝基化合物。然后可以将它们用于制备叠氮化苯中间体。