So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Guseva, G. B.; Dudina, N. A.; Antina, E. V.; V’yugin, A. I.; Semeikin, A. S. researched the compound: Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate( cas:2199-44-2 ).HPLC of Formula: 2199-44-2.They published the article 《Complexation between decamethyl-3,3′-bis(dipyrrolylmethene) and zinc(II), copper(II), and cobalt(II) acetates》 about this compound( cas:2199-44-2 ) in Russian Journal of Coordination Chemistry. Keywords: complexation zinc copper cobalt acetate decamethylbisdipyrrolylmethene preparation thermodn. We’ll tell you more about this compound (cas:2199-44-2).
Decamethylmethylene-3,3′-bis(dipyrrolylmethene) dihydrobromide H2L·2HBr, which is the simplest representative of a novel class of oligo(dipyrrolylmethenes) belonging to chromophore chelating nonmacrocyclic ligands, were examined by 1H NMR, IR, and electronic absorption spectroscopy. Complexation reactions of H2L·2HBr with M(AcO)2 (M = Zn(II), Cu(II), and Co(II)) in DMF at 298.15 K were monitored by electronic absorption spectroscopy and studied by the molar ratio method. The thermodn. constants K0 of these reactions were estimated The d metal ions coordinate H2L to give the binuclear homoleptic complexes [M2L2]. The reactions proceed through the intermediate binuclear heteroleptic complex [M2L(AcO)2] detected by spectroscopic methods. The thermodn. stabilities of [M2L2] and [M2L(AcO)2] increase when moving from Cu(II) to Zn(II) and Co(II). The probability of formation and stability of [M2L2] containing 3,3′-bis(dipyrrolylmethene) are substantially higher than those of analogous complexes with the 2,2′-isomer (decamethyl-2,2′-biladiene-a,c). The low K0 values for the complexation between H2L and Cu(AcO)2 are due to slow oxidation of the biladiene ligand into a bilatriene with participation of Cu2+ ions.
There are many compounds similar to this compound(2199-44-2)HPLC of Formula: 2199-44-2. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.
Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com