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Title: Synthesis, characterization and crystal structure of 2-((4-bromophenyl) carbamoyl) phenylselenenyl bromide derived from oxidative addition of bromine to 2-phenyl-1,2-benzoisoselenazol-3-(2H)-one
Authors: Balkrishna, Shah Jaimin
Kumar, Amit
Panini, Piyush
Kumar, Shailesh
Kumar, Sangit
Keywords: Bromination;Organoselenium compounds;X-ray diffraction;Ebselen;Selenenyl bromide
Issue Date: 3-Aug-2013
Abstract: Oxidative addition of elemental bromine to 2-phenyl-1, 2-benzoisoselenazol-3-(2H)-one has been studied. Reaction of bromine with selenazolone gives the corresponding 2-phenyl-1,2-benzoisoselenazol-3-(2H)-one(IV) dibromide, which slowly rearranges to 2-((4-bromophenyl)carbamoyl)phenylselenenyl bromide when kept for crystallization for a longer period of time (24 days). Molecular conformation of the selenenyl bromide is found to be stabilized due to the presence of an intramolecular Se…O interaction along with the weak C-H…O and C-H…Br hydrogen bonds. The nature of the intramolecular Se…O interaction in selenenyl bromide has been studied by multi-nuclear (1H, 13C, and 77Se) NMR spectroscopy.
Page(s): 1078-1085
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.52A(08-09) [August-September 2013]

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