Formation of new hydroxyselenonio and hydroxyammonio-selenuranes from reaction of Se-oxides of 5H,7H-dibenzo[b,g][1,5]diselenocine and N-methyl-5H,7H-dibenzo[b,g][1,5]selenazocine with silyl triflates

Abstract

The transannular reaction of 5H,7H-dibenzo [b,g][1,5] diselenocine Se-oxide 1 or N-methyl-5H,7H-dibenzo[b,g][1,5]selenazocine Se-oxide 2 with 1 equiv. of silyl triflates, CF₃SO₃SiMe₃ and CF₃SO₃SiMe₂Bu^t, produced a new hypervalent selenurane which consists of two Unsymmetrical apical ligands such as the hydroxy group and the selenonio or ammonio group.