Abstract

Electrophilic reactivity of Me 3S + O Tf, Me 3Se + O Tf, and Me 3Te + O Tf ( O Tf= trifluoromethanesulfonate) in superacid solvents towards aromatics has been dem-onstrated, indicative of protosolvation of the remaining lone pair on the onium ions. When dissolved in superacids, Me 3Se + O Tf and Me 3Te + O Tf show measurable changes in their NMR ( 1H, 13C, 77Se, 125Te) chemical shifts and one bond 77Se- 13C, 125Te- 13C spin-spin coupling constants. The NMR data are compared with those of related selenonium cations and donor-acceptor complexes.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call