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Cobalt‐Catalyzed Annulation of o‐Phenylenediamines and Internal Alkynes: Efficient Synthesis of Quinoxaline Derivatives.
- Source :
- European Journal of Organic Chemistry; 1/15/2024, Vol. 27 Issue 3, p1-6, 6p
- Publication Year :
- 2024
-
Abstract
- A cobalt‐catalyzed annulation of o‐phenylenediamines and internal alkynes for the synthesis of quinoxalines is developed. This method provides a variety of quinoxalines in good to high yields under a simple and mild reaction conditions with molecular O2 as a terminal oxidant. Preliminary mechanistic studies show that a novel reaction mechanism is involved in the current reaction, which is different from the previous reported dicarbonyl compound mechanism via the oxidation of the alkyne. [ABSTRACT FROM AUTHOR]
- Subjects :
- QUINOXALINES
ALKYNES
ANNULATION
OXIDIZING agents
OXIDATION
COBALT
Subjects
Details
- Language :
- English
- ISSN :
- 1434193X
- Volume :
- 27
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- European Journal of Organic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 174845404
- Full Text :
- https://doi.org/10.1002/ejoc.202300919