Author/Authors :
Miyazawa، نويسنده , , Masahiro and Eizawa، نويسنده , , Toru and Yoshihara، نويسنده , , Shoko and Hatanaka، نويسنده , , Akinori and Yokoyama، نويسنده , , Hajime and Hirai، نويسنده , , Yoshiro، نويسنده ,
Abstract :
We report a highly stereoselective palladium(II)-catalyzed intramolecular cyclization of 1,11-dihydroxyundec-9-en-5-one derivatives via unstable hemiacetal intermediates, in which cyclization occurs without activation of the allylic alcohol to afford spiroketal structures.
Keywords :
Dihydroxyketone , spiroketal , Palladium(II)-catalyst , hemiketal
