Site-Selective Radical Trifluoromethylaminoxylation of Olefins for the Modular Synthesis of Diverse β-Trifluoromethyl Trisubstituted Hydroxylamines and Beyond
作者:Muyang Yang、Wen Shao、Lin Zuo、Jiajia Wang、Yongzhuo Xu、Guojiang Mao、Guo-Jun Deng
DOI:10.1021/acs.orglett.3c00951
日期:2023.4.21
direct access to diverse β-trifluoromethyl trisubstituted hydroxylamines, tertiary alcohols, isoxazolines, isoxazolidines, and amino alcohols. The SET process between hydroxylamine and the hypervalent iodine–CF3 reagent is proposed to produce two free radicals for the regio- and diastereoselective addition to alkenes. The synthetic potential of the protocol was established via the late-stage functionalization
据报道,在无金属条件下,活化和未活化烯烃的高位点选择性三氟甲基氨基氧基化。该方法可直接获得多种 β-三氟甲基三取代羟胺、叔醇、异恶唑啉、异恶唑烷和氨基醇。羟胺和高价碘-CF 3试剂之间的 SET 过程被提议产生两个自由基,用于烯烃的区域选择性和非对映选择性加成。该协议的合成潜力是通过产品的后期功能化和一系列反应后修改建立的。