Patent Number: 6,252,119

Title: Copper-catalysed allylic oxidation using alkyl hydroperoxide

Abstract: .DELTA.5-7-oxo-steroids are efficiently prepared from .DELTA.5-steroids using t-BuOOH in the presence of a copper catalyst, such as cuprous and cupric salts and copper metal.

Inventors: Salvador; Jorge Antonio Riberiro (3000 Coimbra, PT), Vaz de Sa e Melo; Maria Luisa Campeao Fernandes (3000 Coimbra, PT), de Silva Campos Neves; Andre (3030 Coimbra, PT)

Assignee:

International Classification: C07C 45/00 (20060101); C07C 45/27 (20060101); C07C 045/27 ()

Expiration Date: 06/26/2018