Process for dehydrogenation of sterols to produce...

Details Process for dehydrogenation of sterols to produce... Process for dehydrogenation of sterols to produce...

C - Chemistry, Metallurgy

07

J

260/7

C07J 9/00 (2006.01)

Patent

CA 1138429

TITLE PROCESS FOR DEHYDROGENATION OF STEROLS TO PRODUCE .DELTA.4-3-KETOSTEROIDS (III) ABSTRACT OF THE DISCLOSURE This invention relates to the dehydrogenation of a 3- 8-hydroxy steroid or a mixture of soy sterols to form the corresponding mixture of .DELTA.4-3-keto derivatives of phytosterols, the improvement which comprises dehydrogenating the steroid or mixture of sterols using an activated non-pyrophoric nickel catalyst and carrying out the oxidation in the presence of a diaryl ketone. One such process uses a non-pyrophoric Raney nickel type catalyst and a diaryl ketone, such as benzophenone as a hydrogen acceptor.

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