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 Cobalt(III)-Catalyzed Alkylation of Primary C(sp3)-H Bonds with Diazo Compounds, published in 2017, which mentions a compound: 178396-31-1, Name is 6-Bromo-8-methylquinoline, Molecular C10H8BrN, Application In Synthesis of 6-Bromo-8-methylquinoline.
Chelation-assisted C(sp2)-H metalation/carbenoid insertion has been well investigated. However, the analogous carbene functionalization of C(sp3)-H bonds remains a great challenge. Here we report the first cobalt(III)-catalyzed alkylation of 8-methylquinolines with diazo compounds through primary C(sp3)-H cobaltation/carbenoid insertion. The reaction is highly efficient, scalable and tolerates a variety of functional groups. Furthermore, the unique protocol can be applied to the synthesis of azatricyclic antibiotic compounds
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Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics