One-step synthesis of cis-5,6-dideuterio-cis-cyclo-octene and its thermal stability towards concerted, intramolecular transfer of hydrogen
Abstract
cis-5,6-Dideuterio-cis-cyclo-octene has been synthesised in one step from cyclo-octa-1,5-diene by reduction with dideuteriodi-imide. On prolonged pyrolysis at 250°, intramolecular transfer of the vicinal 5- and 6-protons to the double bond does not occur; thus no 1,2-dideuterio-cis-cyclo-octene is formed.