First isolation of selenabenzenes stabilised by two electron-withdrawing groups at the 2- And 6-positions

Article abstract of DOI:10.1039/a901467e

Selenabenzenes with two electron-withdrawing groups at 2,6-positions 9a-c were isolated and stable at room temperature and underwent the thermal rearrangement giving 2- and 4-methylselenines 13 and 14 and the oxygenation reaction giving dienone 15 and selenin-4-one 16.