Facile Access to 2-Selenoxo-1,2,3,4-tetrahydro-4-quinazolinone Scaffolds and Corresponding Diselenides via Cyclization between Methyl Anthranilate and Isoselenocyanates: Synthesis and Structural Features.

A practical method for the synthesis of 2-selenoxo-1,2,3,4-tetrahydro-4-quinazolinone was reported. The latter compounds were found to undergo facile oxidation with HO into corresponding diselenides. Novel organoselenium derivatives were characterized by the H, Se, and C NMR spectroscopies, high-resolution electrospray ionization mass spectrometry, IR, elemental analyses (C, H, N), and X-ray diffraction analysis for several of them.

Complexes of 1-(2-R(F, CH, Cl)-phenyl)-1,4-dihydro-5H-tetrazole-5-thiones with cadmium chloride: Synthesis, molecular, crystal structures and computational investigation approach.

New complex compounds (I) - (IV) were synthesized by the reaction of 1-(2-fluorofluorophenyl) -1,4-dihydro-5H-tetrazole-5-thione (HL), 1-(2-methylphenyl)-1,4-dihydro-5H-tetrazole-5-thione (HL) and 1-(2-chlorochlorophenyl)-1,4-dihydro-5H-tetrazole-5-thione (HL) with cadmium chloride. By X-ray diffraction analysis, molecular and crystal structures of complexes (I), (II), (III) and (IV) are determined. (CIF files CCDC № 2,003,797 (I), 1,993,454 (II), 2,151,359 (III), 2,098,997 (IV)).