L. M. Lima, Belén Zarranz, A. Marin
Nov 1, 2005
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Journal
Journal of Heterocyclic Chemistry
Abstract
In this paper we describe two new basic conditions for the synthesis of quinoxaline 1,4-dioxide derivatives in moderate to good yields. These conditions, exemplified by the use of K2C03 in acetone or KF/A1203 in the absence of an organic solvent, were reproducible and applicable to the synthesis of 2-(carboethoxy)-3-phenylquinoxaline 1,4-dioxide derivatives substituted in position 4 with electron-donating or electron-withdrawing groups.