Synthesis and Thermolysis of the Novel Ring Systems Containing Nitrogen and Tetracoordinate Selenium

Oxidation of β-aminoalkyl selenides bearing the Martin ligand with mCPBA gave tetracoordinate 1,2-selenazetidines or a tetracoordinate 1,2,5-oxaselenazolidine as stable colorless crystals. The thermolysis of 1,2-selenazetidines afforded the corresponding aziridine and cyclic selenenate.