Journal Article

·1998

Reductive metallation of 6‐methyl‐2,3‐diphenylquinoxaline. Synthesis of 1,4‐dihydro‐1,4‐diazine derivatives

Nüket Öcal YTU , Zuhal Turgut YTU , Şniz Kaban YTU

Journal of Heterocyclic Chemistry

Abstract

Abstract The reductive metallation of 6‐methyl‐2,3‐diphenylquinoxaline 1 with sodium metal in tetrahydrofuran and inert atmosphere to a monomeric dianion 2 has been explored and the nucleophilicity of this disodium adduct was investigated with various alkylation and acylation reagents. An annulation of the pyrazine ring system was accomplished by treating the dianion with polymethylene chlorides, Cl(CH 2 ) n Cl, n = 3,4.

Keywords

Chemistry Pyrazine Annulation Tetrahydrofuran Diazine Reagent Alkylation Adduct Medicinal chemistry Ring (chemistry) Nucleophile Organic chemistry Catalysis

Subject Areas

Synthesis and Biological Evaluation ·Organic Chemistry ·Physical Sciences
Chemical Synthesis and Analysis ·Molecular Biology ·Life Sciences
Coordination Chemistry and Organometallics ·Organic Chemistry ·Physical Sciences

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