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- Title
Cobalt(III)‐Catalyzed [4+2] Annulation of Heterobicyclic Alkenes by sp<sup>2</sup> C−H Activation.
- Authors
Dey, Arnab; Rathi, Anuja; Volla, Chandra M. R.
- Abstract
Abstract: An efficient and convenient cobalt(III)‐catalyzed highly diastereoselective strategy was demonstrated for the synthesis of epoxybenzophenanthridinone derivatives. The sp2 C−H activation of N‐methoxybenzamides and their annulation reaction with 7‐oxa/aza benzonorbornadienes proceeds under mild conditions and exhibits excellent functional group tolerance. In addition, the products were transformed to biologically relevant phenanthridinones by an acid‐catalyzed ring opening/aromatization sequence.
- Subjects
COBALT catalysts; ANNULATION; DIASTEREOISOMERIZATION
- Publication
Asian Journal of Organic Chemistry, 2018, Vol 7, Issue 7, p1362
- ISSN
2193-5807
- Publication type
Article
- DOI
10.1002/ajoc.201800251