%0 Journal Article %T Bromination of bis-(pyridin-2-yl) diselenide in methyl-ene chloride: the reaction mechanism and crystal structures of 1H-pyridine-2-selenenyl dibromide and its cyclo-adduct with cyclo-pentene (3aSR,9aRS)-2,3,3a,9a-tetra-hydro-1H-cyclo-penta-[4,5][1,3]selenazolo[3,2-a]pyridinium bromide %A Alexander V. Borisov %A Galina N. Borisova %A Julia M. Lukiyanova %A Maria M. Grishina %A Victor N. Khrustalev %A Vladimir I. Naumov %A Vladimir K. Osmanov %A Zhanna V. Matsulevich %J Archive of "Acta Crystallographica Section E: Crystallographic Communications". %D 2019 %R 10.1107/S2056989019004997 %K bromination %K cycloaddition reaction %K bis(pyridin-2-yl) diselenide %K 2-pyridylselenenyl bromide %K cyclopentene %K 2 %K 3 %K 3a %K 9a-tetrahydro-1H-cyclopenta[4 %K 5][1 %K 3]selenazolo[3 %K 2-a]pyridinium-9 bromide %K crystal structure %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6505604/