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 Synthesis of aryl sulfonyl fluorides from aryl sulfonyl chlorides using sulfuryl fluoride (SO2F2) as fluoride provider, published in , which mentions a compound: 6684-39-5, Name is 2-Chloro-5-pyridinesulfonyl chloride, Molecular C5H3Cl2NO2S, Quality Control of 2-Chloro-5-pyridinesulfonyl chloride.
A highly efficient method for the synthesis of aryl sulfonyl fluorides ArSO2F [Ar = 4-MeC6H4, 4-PhC6H4, 4-ClC6H4, etc.] was developed from aryl sulfonyl chlorides using SO2F2 as fluoride source in up to 98% isolated yield under mild conditions. Gram scale experiments were also conducted, revealing the good practicality of this new protocol.
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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis