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.Onda, Hiroyuki; Toi, Hiroo; Aoyama, Yasuhiro; Ogoshi, Hisanobu researched the compound: Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate( cas:2199-44-2 ).Name: Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate.They published the article 《Fluoropyrroles and tetrafluoroporphyrins》 about this compound( cas:2199-44-2 ) in Tetrahedron Letters. Keywords: fluoropyrrole preparation cyclocondensation; fluoroporphyrin; porphyrin tetrafluoro. We’ll tell you more about this compound (cas:2199-44-2).
Photolysis of the pyrrole-β-diazonium tetrafluoroborate I (R = N2+BF4-) gave the β-fluoropyrrole I (R = F) which was oxidized to the alc. II. Treatment of II with K3Fe(CN)6 or Cu(OAc)2 gave the fluoroporphyrins III (M = 2H, Cu) resp.
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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com