The first example of addition of a 1,2-dication to a C-C multiple bond. Reaction of S-S dications with alkenes and alkynesстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The reactions of a bicyclic dithioether dication, generated from 1,4-dithiane 1-oxide, with a carbon-carbon multiple bond proceed as conjugated addition of two sulfonium groups and gives rise to derivatives of dithioniabicyclo[2.2.2]octane. The reaction is sensitive to electronic and steric factors. In all cases investigated the reactions of 1,2-disubstituted arylalkene proceed with retention of the relative arrangement of substituents at the double bond of the original alkene. A possible explanation of the obtained results is discussed.