73524-08-0Relevant articles and documents
Transformation of D:A-Friedo-18β-lup-19-en-3-one into D:B-Friedo-18β,19αH-lup-5-en-3β-ol and a Comment on the Structure of Guimarenol
Yokoyama, Yasushi,Moriyama, Yoshihiko,Tsuyuki, Takahiko,Takahashi, Takeyoshi,Itai, Akiko,Iitaka, Yoichi
, p. 2971 - 2976 (1980)
D:A-Friedo-18β-lup-19-en-3-one was transformed into D:B-friedo-18β,19αH-lup-5-en-3β-ol by two routes, 1) bromination-dehydrobromination of an enol benzoate of D:A-friedo-18β,19αH-lupan-3-one and 2) BF3*Et2O-catalyzed backbone rearrangement of 3β,4β-epoxy-