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

260/60

C07J 9/00 (2006.01)

Patent

CA 1145329

TITLE PROCESS FOR DEHYDROGENATION OF STEROLS TO PRODUCE .DELTA.4-3-KETOSTEROIDS (II) ABSTRACT OF THE DISCLOSURE This invention relates to the dehydrogenation of a 3- B-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 dehydrogenation of the steroid or mixture of sterols using a supported nickel catalyst and carrying out the dehydrogenation in the presence of at least two chemically different hydrogen acceptors. One such process uses a supported nickel catalyst and a dialkyl ketone, such as methyl ethyl ketone, and an olefin, such as 1-hexene, as the two different hydrogen acceptors.

361550

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