Molybdenum Pentachloride Mediated Synthesis of Spirocyclic Compounds by Intramolecular Oxidative Coupling
作者:Moritz Schubert、Kathrin Wehming、Anton Kehl、Martin Nieger、Gregor Schnakenburg、Roland Fröhlich、Dieter Schollmeyer、Siegfried R. Waldvogel
DOI:10.1002/ejoc.201501384
日期:2016.1
The oxidative treatment of (m)ethyl 2-aryl cinnamates equipped with methoxy groups in position 4 of the phenyl moiety promote the formation of cyclohexadienone substructures. This dealkylative oxidative C–C coupling gives access to spirocycliccompounds and avoids the construction of the corresponding phenanthrenes. Furthermore, the transformation can be expanded to other spirocyclic systems.
Design and synthesis of 9-phenanthranilamide derivatives and the study of anti-inflammatory, antioxidant and neuroprotective activities
作者:Shuaishuai Du、Hongwei Wang、Jiaming Li、Weijun Huang、Xueyang Jiang、Enjing Cui、Le Du、Yang Wang
DOI:10.1016/j.bioorg.2023.106861
日期:2023.12
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Bioinspired Construction of a Spirocyclohexadienone Moiety via Sodium Nitrite Catalyzed Aerobic Intramolecular Oxidative Phenol Coupling
作者:Bo Su、Meng Deng、Qingmin Wang
DOI:10.1021/ol400388j
日期:2013.4.5
An efficient and green intramolecular oxidative phenol coupling for the direct construction of spirocyclohexadienones has been developed, which uses environment-friendly sodium nitrite as the catalyst and oxygen in the air as the terminal oxidant. Hydroxy-containing substituted phenanthrenes and dibenzoazepines could be easily obtained from the dienone-phenol rearrangement.