Preparation and reactivity of dichalcogenide (S, Se) dication salts from medium-sized cyclic bis-sulfide and bis-selenides
作者:Hisashi Fujihara、Ryouichi Akaishi、Naomichi Furukawa
DOI:10.1016/s0040-4020(01)80348-3
日期:——
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 NOPF6 or NOBF4 gave the first diselenide dication salt, 1,5-diselenoniabicyclo-[3.3.0]octane bis(hexafluorophosphate) or b
从1,5-二硫代环辛烷1-氧化物与三氟甲磺酸酐的反应中分离出二硫化物二价盐1,5-二硫代双环[3.3.0]辛烷双(三氟甲磺酸盐)(3)。用两当量的NOPF 6或NOBF 4对1,5-二硒杂环辛烷进行双电子氧化,得到第一种二硒化物指示盐,即1,5-二硒代双环-[3.3.0]辛烷双(六氟磷酸盐)或双(四氟硼酸盐)(5)。取决于所添加的试剂,二硫化物和二硒化物的盐(3和5)起氧化剂或亲电试剂的作用。