DMSO/<i>t</i>-BuONa/O<sub>2</sub>-Mediated Aerobic Dehydrogenation of Saturated <i>N</i>-Heterocycles
作者:Ruchun Yang、Shusheng Yue、Wei Tan、Yongfa Xie、Hu Cai
DOI:10.1021/acs.joc.9b03447
日期:2020.6.5
Aromatic N-heterocycles such as quinolines, isoquinolines, and indolines are synthesized via sodium tert-butoxide-promoted oxidative dehydrogenation of the saturated heterocycles in DMSO solution. This reaction proceeds under mild reaction conditions and has a good functional group tolerance. Mechanistic studies suggest a radical pathway involving hydrogen abstraction of dimsyl radicals from the N–H
Oxidation Potential Tunable Organic Molecules and Their Catalytic Application to Aerobic Dehydrogenation of Tetrahydroquinolines
作者:Dahyeon Jung、Seol Heui Jang、Taeeun Yim、Jinho Kim
DOI:10.1021/acs.orglett.8b02749
日期:2018.10.19
In this work, oxidation potential tunable organic molecules, alkyl 2-phenyl hydrazocarboxylates, were disclosed. The exquisite tuning of their oxidation potentials facilitated a catalyticdehydrogenation of 1,2,3,4-tetrahydroquinolines in the presence of Mn(Pc) and O2.
Simple and Convenient Approach for Synthesis of Tetrahydroquinoline Derivatives and Studies on Aza-Cope Rearrangement
作者:V. S. Prasada Rao Lingam、Abraham Thomas、Khagga Mukkanti、Balasubramanian Gopalan
DOI:10.1080/00397911.2010.493258
日期:2011.5.4
Abstract A simple and novel synthesis of 1,2,3,4-tetrahydroquinoline derivatives by polyphosphoric acid–assisted reaction of N-aryl allyl anilines prepared from anilines has been reported. The generality and scope of the approach has been demonstrated by extending it to the synthesis of 1,2,5,6-tetrahydro-4H-pyrrolo[3,2,1-ij]quinoline (lilolidine) and 2,3,6,7-tetrahydro-1H,5H-pyrido[3,2,1-ij]quinoline