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.Zhestkov, V. P.; Mironov, A. F.; Rosynov, B. V.; Ustynyuk, L. A.; Myagkova, G. I.; Evstigneeva, R. P. researched the compound: Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate( cas:2199-44-2 ).COA of Formula: C9H13NO2.They published the article 《Studies on the synthesis of porphyrin a. II. Synthesis of porphyrins with higher saturated and unsaturated acyl substituents》 about this compound( cas:2199-44-2 ) in Bioorganicheskaya Khimiya. Keywords: deuteroporphyrin IX; biladiene cyclization; pyrrole reacion tripyrrene. We’ll tell you more about this compound (cas:2199-44-2).
Deuteroporphyrins IX [I, R1 = Me2C:CH(CH2)2CMe:CH(CH2)2CMe:CHCH2, Me2CH(CH2)3CHMe(CH2)3CHMe(CH2)2, Me2CBrCHBr(CH2)2CBrMeCHBr(CH2)2CBrMeCHBrCH2] were obtained in 33-92% yields by cyclization of the corresponding biladienes II, prepared from a pyrrole derivative and a tripyrrene.
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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com