Keywords: 3-hydrazinoquinoxalin-2(1H)-one, imines, Gram-positive bacteria.Over the years it has been established that quinoxalines are, in general, relatively easy to prepare [1-3], and many derivatives have been synthesized with the aim of obtaining biologically active materials [4,5]. Some quinoxaline and quinoxalinone derivatives have been reported to show antimicrobial [6,7], antiinflammatory [8], antifungal [9], anticancer [10], antiviral [11], antimalarial [12], anticonvulsant [13], antidepressant [14], antitubercular [15], antibacterial [16], and antithrombotic [17] activities. Thermal and chemically stable polyquinoxalines (PQs) find potential applications as films, coating adhesives [18], ultrafiltering materials, and composite matrices that demand stability in harsh environment [19]. In a similar manner the synthesis of novel pyrazole derivatives [20] and evaluation of their chemical behaviors have gained more importance in recent decades for biological [21-23], medicinal [24], and agricultural [25] purposes. Although numerous methods are available for construction of pyrazoles [26,27], only little attention has been given to the pyrazolysis of quinoxalinone derivatives [28]. For instance, 1,3-dipolar cycloadditions of azomethine imines, available by acid catalyzed treatment of 3-pyrazolidinone with acetone and butyraldehyde, respectively, were studied [29]. The photoluminescence and electroluminescence of some new 1H-pyrazolo-
