4-Trifluoromethyl-4a-chloro-5,6,7, 8,9,9-hexafluoro(4aH, 9H)indeno[2,1c][1,
2,6] -selenadiazine (1) has been synthesised by the interaction of 2-amino-
3-(1-imino-2,2,2-trifluoroethyl)hexafluoroindene (2) with SeCl4 in the pres
ence of HCl accepters. Hydrolysis and reaction with CF3SO3H are also descri
bed. Arrangement of atoms for 1 are provided. (C) 2000 Elsevier Science S.A
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