iminyl‐radical formation has been established for the construction of pyridines, quinolines, and phenanthridines from acyl oximes. With fac‐[Ir(ppy)3] as a photoredox catalyst, the acyl oximes were converted by 1 e− reduction into iminyl radical intermediates, which then underwent intramolecular homolytic aromatic substitution (HAS) to give the N‐containing arenes. These reactions proceeded with a broad
已经建立了涉及可见光诱导的亚胺基自由基形成的统一策略,用于从酰基肟中构建吡啶,喹啉和菲啶。用FAC - [的Ir(ppy)3 ]作为催化剂photoredox,酰基肟通过1e中转化-还原成亚氨基自由基中间体,然后行分子内均裂芳族取代(HAS),得到含有N-芳烃其中。这些反应在室温下以宽范围的底物以高收率进行。这种可见光诱导的亚胺基自由基形成策略已成功地应用于五步精简合成苯并[ c ]菲啶生物碱。
Palladium-Catalyzed Domino Direct Arylation/N-Arylation: Convenient Synthesis of Phenanthridines
作者:David A. Candito、Mark Lautens
DOI:10.1002/anie.200902400
日期:2009.8.24
Domino reactions possess the ability to generate complexity from simple starting materials. Disclosed is a strategy for the dominodirectarylation/N‐arylation for the facile construction of diverse phenanthridine derivatives (see scheme; TMS=trimethylsilyl, TBDMS=tert‐butyldimethylsilyl).
Ritchie, Journal and Proceedings - Royal Society of New South Wales, 1944, vol. 78, p. 164,167
作者:Ritchie
DOI:——
日期:——
2-Acylcyclohexane-1: 3-diones. Part II. 2-Formyl-, 2-propionyl-, 2-iso-butyryl-, and 2-phenylcarbamoyl-cyclohexane-1: 3-dione, and their conversion into phenanthridines