Observation of neighboring ortho-hydroxyl group participation in organocatalytic asymmetric sequential Michael-lactonization reactions: synthesis of highly substituted chiral spirodihydrocoumarins

A general approach to asymmetric synthesis of highly substituted spirodihydrocoumarins with a quaternary stereocenter was achieved through neighboring ortho-hydroxyl group induced sequential Michael-lactonization reactions on 2-(2-nitrovinyl)phenols with alkyl cyclopentanone-2-carboxylates in the pr...

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Veröffentlicht in:	Organic & biomolecular chemistry 2012-08, Vol.10 (30), p.5825-5829
Hauptverfasser:	Ramachary, Dhevalapally B, Madhavachary, R, Prasad, M Shiva
Format:	Artikel
Sprache:	eng
Schlagworte:	Catalysis Chemistry Techniques, Synthetic Coumarins - chemical synthesis Coumarins - chemistry Hydroxides - chemistry Lactones - chemistry Stereoisomerism
Online-Zugang:	Volltext
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