Synthesis and structure of 1,3-diselenol-2-selenone

Conclusions The reaction of 1,3-diselenolane-2-selenone with dimethyl acetylenedicarboxylate, and subsequent saponification and decarboxylation of the formed dimethyl ester of 1,3-diselenol-2-selenone-4, 5-dicarboxylic acid, gave 1,3-diselenol-2-selenone, whose molecular structure was determined.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No.1, pp.179–181, January, 1976.The authors express their gratitude to M. L. Khidekel for his interest in the work and a discussion of the results, and to G. V. Lagodzinskaya for taking the NMR spectra.