2,6-Dihalo-9-selenabicyclo[3.3.1]nonanes and their complexes with selenium dihalides: synthesis and structural characterisation†,10.1039/C5NJ00684H

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2,6-Dihalo-9-selenabicyclo[3.3.1]nonanes and their complexes with selenium dihalides: synthesis and structural characterisation†

Vladimir A. Potapov,Svetlana V. Amosova,Elena V. Abramova,Maxim V. Musalov,Konstantin A. Lyssenko,M. G. Finn

New Journal of Chemistry Pub Date : 07/27/2015 00:00:00 , DOI:10.1039/C5NJ00684H

Abstract

The transannular addition of SeCl₂ and SeBr₂ to cis,cis-cycloocta-1,5-diene affords 2,6-dihalo-9-selenabicyclo[3.3.1]nonanes in high yields. The latter react with SeCl₂ and SeBr₂ to form the 2 : 1 complexes, which are the first representatives of coordination compounds with the Se⋯Se⋯Se bonds. X-ray crystallographic data of the obtained compounds are discussed. In contrast to 2,6-dihalo-9-selenabicyclo[3.3.1]nonanes, tetrahydroselenophene does not form complexes with SeCl₂ and SeBr₂ giving 1,1-dihalotetrahydroselenophenes.