Organocatalytic condensation-ring opening-annulation cascade reactions between N-Bocindolin-2-ones/benzofuran-2(3H)-ones and salicylaldehydes for synthesis of 3-arylcoumarins

An organocatalytic cascade synthesis of 3-arylcoumarins has been developed. Mediated by 1,8-diazabicyclo[5,4,0]-undec-7-ene or tetramethylguanidine, a number of 3-arylcoumarins were obtained in good to excellent yields via condensation-ring opening-annulation between N-Bocindolin-2-ones/benzofuran-2...

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Veröffentlicht in:	Organic & biomolecular chemistry 2017-09, Vol.15 (36), p.7505-7508
Hauptverfasser:	Cheng, Yuyu, Zhang, Pengfei, Jia, Yanwen, Fang, Zhiqiang, Li, Pengfei
Format:	Artikel
Sprache:	eng
Schlagworte:	Aldehydes - chemistry Benzofurans - chemistry Bridged Bicyclo Compounds, Heterocyclic - chemistry Catalysis Coumarins - chemical synthesis Coumarins - chemistry Guanidines - chemistry Indoles - chemistry Molecular Structure
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