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Communication | Special issue | Vol 52, No. 3, 2000, pp.1021-1024
Published online, 1st January, 1970
DOI: 10.3987/COM-99-S118
Oxidation of 1H-2-Benzoselenopyrans. Generation of Benzoselenophenes, Benzaldehydes, and Benzophenones

Kentaro Okuma,* Kazuki Kojima, Yuji Koga, and Kosei Shioji

*Department of Chemistry, Faculty of Science, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan

Abstract

Oxidation of 1H-2-benzoselenopyrans bearing electron-withdrawing substituents gave benzoselenophenes, benzaldehydes, and benzophenone derivatives via the corresponding selenoxides followed by Pummerer and [3,3]sigmatropic rearrangements.