Application In Synthesis of Ethyl 3-bromo-2-oxopropanoate. 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-bromo-2-oxopropanoate, is researched, Molecular C5H7BrO3, CAS is 70-23-5, about Syntheses of Novel Tetrasubstituted Thiophenes from Benzene-1,2-Diamines, Ethyl Bromopyruvate, Malononitrile, and Aryl Isothiocyanates. Author is Piltan, Mohammad.
Synthesis of amino(oxo-dihydroquinoxalinyl)(phenylamino)thiophene-carbonitrile derivatives I [R = H, Me, Cl; R1 = 2-MeOC6H4, 4-NO2C6H4, Et, Ph] was reported via sequential base mediated condensation of malononitrile with aryl isothiocyanates followed by S-alkylation with 3-(bromomethyl)quinoxalin-2(1H)-one compounds and concurrent intramol. enamine type condensation of S-alkylated compounds in excellent yields.
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Reference:
Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem