H. Fujihara, R. Akaishi, N. Furukawa
1993
Citations
0
Influential Citations
31
Citations
Journal
Tetrahedron
Abstract
Abstract The disulfide dication salt, 1,5-dithioniabicyclo[3.3.0]octane bis(trifluoromethanesulfonate) ( 3 ), was isolated from the reaction of 1,5-dithiacyclooctane 1-oxide with trifluoromethanesulfonic anhydride. Two-electron oxidation of 1,5-diselenacyclooctane with two equivalents of NOPF 6 or NOBF 4 gave the first diselenide dication salt, 1,5-diselenoniabicyclo-[3.3.0]octane bis(hexafluorophosphate) or bis(tetrafluoroborate ( 5 ). The disulfide and diselenide dication salts ( 3 and 5 ) act as an oxidant or as an electrophile depending on the added reagents.