Synthesis and Characterization of Some New Bis (1,3-selenazole) from Bis-Selenocarboxamide

The synthesis of new bis (1,3-selenazoles) was achieved by subjecting primary bis aryl-selenocarboxylic amides to cyclization with α-bromoketones. The methodical preparation of bis (1,3-selenazoles) was achieved by the primary bis selenoamides with α-halo ketones. Bis selenoamides were gained from the reaction of NaHSe with aryl nitrile. The resulting bis (1,3-selenazoles) has been characterized by different spectroscopic methods; such as 1H ,13C NMR, IR, and mass spectroscopic data to prove the structural formula of the prepared compounds.