Phase-Transfer-Catalyzed Oxaziridine-Mediated Hydroxylative Phenol and Naphthol Dearomatization
作者:Charlotte Grandclaudon、Patrick Y. Toullec
DOI:10.1002/ejoc.201501340
日期:2016.1
ortho-hydroxylation of substituted phenolic substrates is reported. In the presence of a phase-transfer catalyst and a base, N-sulfonyloxaziridines react with phenols to give the corresponding 6-alkyl-6-hydroxycyclohexadienone products in moderate to good yields. The reaction proceeds in fair to good yields and excellent chemoselectivity for 2,6-disubstituted phenols, 1-naphthols, and 2-naphthols.
报道了一种用于取代酚类底物脱芳基邻羟基化的新方法。在相转移催化剂和碱的存在下,N-磺酰氧氮丙啶与酚类反应以中等至良好的产率得到相应的 6-烷基-6-羟基环己二烯酮产物。该反应对 2,6-二取代苯酚、1-萘酚和 2-萘酚的产率和化学选择性均较好。