Synthesis of Azulenopyridinones through Palladium-Catalyzed Oxidative [4+2] Cyclization Reactions ofN-Methoxyazulene-1-and 2-carboxamides with Alkynes

  • Han, Gi Uk
  • Son, Jeong-Yu
  • Park, Dahee
  • Eom, Hyeonsik
  • Lee, Kyungsup
  • ... Lee, Kooyeon
  • 외 2명
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초록

Palladium-catalyzed oxidative [4+2] cyclization reactions were developed from the C-H activation reaction ofN-methoxyazulene-1- and 2-carboxamides with symmetrical and unsymmetrical alkynes under a molecular oxygen atmosphere, producing azulenopyridinone derivatives with novel azulene skeletons in good to excellent yields with a wide substrate scope and excellent functional group tolerance.

키워드

PalladiumcatalysisC-H activationazuleneazulenopyridinoneC-H ACTIVATIONO BONDISOQUINOLONE SYNTHESISINTERNAL OXIDANTAZULENEBENZAMIDESANNULATIONACIDSDERIVATIVESEXPANSION
제목
Synthesis of Azulenopyridinones through Palladium-Catalyzed Oxidative [4+2] Cyclization Reactions ofN-Methoxyazulene-1-and 2-carboxamides with Alkynes
저자
Han, Gi UkSon, Jeong-YuPark, DaheeEom, HyeonsikLee, KyungsupNoh, Hee ChanLee, KooyeonLee, Phil Ho
DOI
10.1002/adsc.202000587
발행일
2020-11-04
유형
Article
저널명
Journal für Praktische Chemie
362
21
페이지
4749 ~ 4754