In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Rh(I)-Catalyzed C6-Selective Decarbonylative Alkylation of 2-Pyridones with Alkyl Carboxylic Acids and Anhydrides, published in 2020-06-05, which mentions a compound: 2834-05-1, Name is 11-Bromoundecanoic acid, Molecular C11H21BrO2, HPLC of Formula: 2834-05-1.
A Rh-catalyzed chelation-assisted C6-selective C-H activation/alkylation of 2-pyridones e.g., 1-(pyridin-2-yl)-1,2-dihydropyridin-2-one with readily available anhydrides RC(O)OC(O)R (R = Me, Et, 2-methylpropyl, etc.) or alkyl carboxylic acids R1C(O)OH (R1 = nonyl, cyanoethyl, cyclohexyl, etc.) is introduced. The reaction proceeds via substrate decarbonylation. This approach merges C-H functionalization with readily available anhydrides, allowing for the efficient synthesis of various C6-alkylated 2-pyridones e.g., 6-methyl-2H-[1,2′-bipyridin]-2-one with good functional group tolerance.
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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI