期刊
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
卷 -, 期 -, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.202300997
关键词
carbon electrophile; carbonyls; cobalt; catalysis; imines
The combination of sustainable cobalt catalysis with the addition of carbon electrophiles to carbonyls and imines has proven to be an effective strategy for constructing C-C bonds. This approach exhibits remarkable functional group tolerance and selectivity, providing reliable methods for bond formation. The systematic evaluation of cobalt-catalyzed additions in this review offers a clearer perspective and inspiration for further development.
The addition of carbon electrophiles to carbonyls and imines has emerged as a valuable strategy for the construction of C-C bonds. The merger of this concept with sustainable cobalt catalysis has yielded numerous innovative methodologies. Remarkable functional group tolerance and selectivity have been observed in many cases, providing reliable methods for bond construction. The cobalt-catalyzed additions of carbon electrophiles to carbonyls, imines and carboxylic acid derivatives described in this review include the earliest reports, such as Takai-Utimoto Co/Cr co-catalyzed additions and their progression, as well as modern variants, exemplified by recent Co/photoredox co-catalyzed protocols. The systematic appraisal of this modern strategy provides a clearer perspective and inspiration for its further development. Cobalt-catalyzed additions of carbon electrophiles to carbonyls, imines and carboxylic acid derivatives are reviewed. The review is organized based on the nature of the reductant used for generation of the active low-valent Co-species: chemical and photochemical reduction strategies. The mechanistic aspects of the strategies are also summarized.image
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