Iglesias-Arteaga, MA; Sandoval-Ramirez, J; Mata-Esma, MY; Vinas-Bravo, O; Bernes, S
(2004)
A new transformation of the spiroketal side chain of diosgenin is reported: treatment of 23-hydroxyiminodiosgenin acetate with phosphorous oxychloride in pyridine produced an abnormal Beckmann rearrangement directing to ...