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
Synthesis of Coumarin- and Quinolone-Annulated Benzazocinone Frameworks by a Palladium-Catalyzed Intramolecular Heck Reaction
作者:K. Majumdar、Srikanta Samanta、Tapas Ghosh
DOI:10.1055/s-0031-1290970
日期:2012.6
strategy based on the sequential application of an aromatic aza-Claisenrearrangement and an intramolecular Heck reaction as the key steps has been developed for the synthesis of various new coumarin- and quinolone-annulated benzazocinone derivatives in 60–70% yields. A synthetic strategy based on the sequential application of an aromatic aza-Claisenrearrangement and an intramolecular Heck reaction
Palladium-catalyzed regioselective oxidative amination of alkenes: an efficient route to the synthesis of pyrrolocoumarin and pyrroloquinolone derivatives
Palladium-catalyzed IBX-induced intramolecular oxidative amination of alkenes has been utilized for the synthesis of pyrrolocoumarin and pyrroloquinolone derivatives in excellent yields in a short reaction time.
Novel Synthesis of Heterocycle-Annulated Azocine Derivatives of Biological Relevance by Aromatic Aza-Claisen Rearrangement and Intramolecular Heck Reaction
A synthetic strategy based on the sequential application of an aromatic aza-Claisenrearrangement and an intramolecular Heck reaction sequence as the key steps has been developed for the synthesis of various hitherto unreported coumarin- and quinolone-annulated benzazocine derivatives in excellent yields. aza-Claisenrearrangement - Heck reaction - benzazocine - coumarin - quinolone - palladium catalyst