Tetrahedron Letters p. 4683 - 4684 (1997)
Update date:2022-08-05
Topics:
Miljkovic, Dusan
Penov-Gasi, Katarina
Djurendic, Evgenija
Sakac, Marija
Medic-Mijacevic, Ljubica
Pejanovic, Vjera
Stankovic, Slobodanka
Lazar, Dusan
By the action of acidic titanium trichloride upon 16-oximino-17α-benzyl-17α-hydroxy derivatives in the androstane and estrane series the 16-oxo-17-β-benzyl-17α-hydroxy derivatives 6 and 7 with inversed configuration at C17 were obtained. A mechanism for this novel rearrangement is proposed.
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