Application In Synthesis of Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate, is researched, Molecular C9H13NO2, CAS is 2199-44-2, about A new and practical synthesis of pyrroles. Author is Quiclet-Sire, Beatrice; Thevenot, Isabelle; Zard, Samir Z..
Heating γ-nitro ketones bearing an electron-withdrawing group such as an ester geminal to the nitro group with formamidinesulfinic acid (reducing agent) and triethylamine in isopropanol produces pyrroles in good yield. The reductive cyclocondensation of α-nitro-δ-oxo-β-phenylbenzenepentanoic acid ester gave 3,5-diphenyl-1H-pyrrole-2-carboxylic acid Et ester (85% yield).
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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com