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 Condensation of halobenzenes and haloferrocenes with phthalimide in the presence of copper(I) oxide; a simplified Gabriel reaction, published in 1981-06-30, which mentions a compound: 1273-73-0, Name is Bromoferrocene, Molecular C10BrFe, Quality Control of Bromoferrocene.
Condensation of phthalimide with aryl and ferrocenyl halides in the presence of cuprous oxide gave the corresponding N-substituted phthalimides in 37-92% yield. Thus, the reaction of PhX (X = I, Br) with phthalimide in the presence of Cu2O gave N-phenylphthalimide. Similarly, condensation of I (X = I, Br, X1 = H; X = X1 = I, Br) with phthalimide gave I (X = phthalimido, X1 = H, I, phthalimido).
As far as I know, this compound(1273-73-0)Quality Control of Bromoferrocene can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.
Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com