Facile Synthesis of Coumarin- and Quinolone-Annulated Benzazoninone Derivatives by an Intramolecular Heck Reaction Strategy via 9-exo-trig Cyclization
作者:K. Majumdar、Tapas Ghosh、Srikanta Samanta
DOI:10.1055/s-0030-1260005
日期:2011.5
application of the aromatic aza-Claisen rearrangement followed by an intramolecularHeck reaction sequence as the key step has been developed for the regiocontrolled synthesis of hitherto unreported coumarin- and quinolone-annulated benzazoninone derivatives in 48-69% yield. coumarin - quinolone - benzazoninones - aza-Claisen rearrangement - Heck reaction