Synthesis of α-Quaternary Amides via Cp*Co(III)-Catalyzed Sequential C-H Bond Addition to 1,3-Dienes and Isocyanates.

Autor: Yeo J; Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States., Tassone JP; Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States., Ellman JA; Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States.
Jazyk: angličtina
Zdroj: Organic letters [Org Lett] 2024 Nov 15; Vol. 26 (45), pp. 9769-9774. Date of Electronic Publication: 2024 Oct 31.
DOI: 10.1021/acs.orglett.4c03740
Abstrakt: The synthesis of sterically congested amides was accomplished via Cp*Co(III)-catalyzed sequential C-H bond addition to 1,3-dienes followed by aminocarbonylation with isocyanates, a coupling partner that had never been utilized in sequential C-H bond addition reactions. A variety of C-H bond reactants, internally substituted dienes, and aromatic isocyanates provided secondary amide products incorporating α-all-carbon quaternary centers. The conversion of the amide products to other useful compound classes was also demonstrated.
Databáze: MEDLINE