Reaction of 2-(Methylseleno)- and 2-(Phenylseleno)benzoic Acids and Their Derivatives with tert-Butyl Hydroperoxide. Neighboring Selenium Participation and Facile Formation of Cyclic Selenuranes and a Selenurane Oxide

Article abstract of DOI:10.1021/jo00133a008

The reaction of 2-(methylseleno)benzoic acid with 1,1'-carbonyldiimidazole followed by addition of tert-butyl hydroperoxide gave 1,1-dihydro-1-tert-butoxy- and 1-hydroxy-1-methyl-3H-2,1-benzoxaselenol-3-ones (3a and 4a), suggesting the intramolecular inse