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Communication | Regular issue | Vol 29, No. 11, 1989, pp.2079-2082
Published online, 1st January, 1970
DOI: 10.3987/COM-89-5167
Versatile Synthesis of 5,6-Dihydro-1,4-dithiewpins and their Synthetic Applications

Kazuhiko Saigo,* Yukihiko Hashimoto, Lan Fang, and Masaki Hasegawa

*Department of Chemistry and Biotechnology, Graduate School of Engineering, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656


Readily available acyloin trimethylene dithioacetals rearranged in the presence of trimethylsilyl trifluoromethanesulfonate to give 5,6-dihydro-1,4-dithiepins. These compounds were converted to olefinic or acetylenic compounds using low valent metallic reductants.