Author's Organization：Faculty of Pharmaceutical Sciences, Okayama University Faculty of Pharmaceutical Sciences, Okayama University Department of Chemistry, Faculty of Science, Okayama University Faculty of Pharmaceutical Sciences, Okayama University Faculty of Pharmaceutical Sciences, Okayama University
Published: June 15, 1999Received: January 25, 1999Available on J-STAGE: March 31, 2008Accepted: March 05, 1999
Advance online publication: -
Revised: -
A vinyl sulfoxide, which is considered to be a moderately reactive dienophile, could be activated by neighboring participation of an epoxide group. The Diels-Alder reaction of ortho-epoxyphenyl vinyl sulfoxide with cyclopentadiene in the presence of Yb(OTf)3 proceeded smoothly even at room temperature to afford the epoxyopened cycloadducts with moderate stereoselectivity.
