Author/Authors :
Derksen، نويسنده , , André J. and van der Waals، نويسنده , , Adri C.L.M. and van Ham، نويسنده , , Marieke H.A. and van Dongen، نويسنده , , Mark and Borkent، نويسنده , , Jan H. and de Gelder، نويسنده , , René and Klunder، نويسنده , , Antonius J.H. and Zwanenburg، نويسنده , , Binne Zwanenburg، نويسنده ,
Abstract :
Tricyclodecenone exo- and endo-epoxides 1 and 9 underwent an unexpected isomerization to oxa-pentacycloundecanones 2 and 10, respectively, under flash vacuum thermolysis conditions using various solid acid catalysts. The structure of a derivative of 2 (R=CO2Et) has been elucidated by X-ray diffraction analysis. A tentative mechanism for the formation of 2 from 1 is proposed.