Abstract
A synthesis of a novel series of bis(quinoxaline) derivatives by the reaction of o-phenylenediamine with the appropriate bis(alpha-bromoketones) was reported. The reactions were performed under thermal as well as under microwave irradiation conditions. The reaction of bis(alpha-bromoketones) with 2,3-diaminopyridine proceeded to give two regioisomers of the corresponding bis{(pyrido[2,3-b]pyrazinyl)phenoxy}methanes.
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