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 Palladium-Catalyzed Arylation of Unactivated γ-Methylene C(sp3)-H and δ-C-H Bonds with an Oxazoline-Carboxylate Auxiliary, published in 2015, which mentions a compound: 616-14-8, Name is 1-Iodo-2-methylbutane, Molecular C5H11I, Computed Properties of C5H11I.
A palladium-catalyzed arylation of unactivated γ-methylene C(sp3)-H and remote δ-C-H bonds by using an oxazoline-carboxylate directing group has been developed. Arylation occurs with a broad substrate scope and high tolerance of functional groups (i.e., halogen, nitro, cyano, ether, trifluoromethyl, amine, and ester). The oxazoline-type auxiliary can be removed under acidic conditions.
In some applications, this compound(616-14-8)Computed Properties of C5H11I is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.
Reference:
Thiomorpholine – Wikipedia,
Thiomorpholine | C4H9NS – PubChem