Journal of the Serbian Chemical Society 2011 Volume 76, Issue 9, Pages: 1191-1198
https://doi.org/10.2298/JSC100801104K
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A facile synthesis of phenazine and quinoxaline (new 1,4-benzo diazine) derivatives using magnesium sulfate heptahydrate as a catalyst
Karami Bahador (Department of Chemistry, Yasouj University, Yasouj, Iran)
Khodabakhshi Saeed (Department of Chemistry, Yasouj University, Yasouj, Iran)
Convenient and simple procedures for the synthesis of phenazine and
quinoxaline derivatives were developed via a reaction of ophenylenediamines
and 1,2-dicarbonyl compounds. In addition, the synthesis of two new
derivatives of 1,4-benzo diazine derivatives and the catalytic activity of
magnesium sulfate heptahydrate (MgSO4•7H2O) in the room temperature
condensation of o-phenylenediamines and 1,2- dicarbonyl compounds in ethanol
as solvent are reported. This method has many appealing attributes, such as
excellent yields, short reactions times, and simple work-up procedures.
Keywords: phenazine, quinoxaline, magnesium sulfate heptahydrate, Catalyst