Bicycloalkane derivatives

C - Chemistry – Metallurgy – 07 – D

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260/476, 260/576

C07D 317/30 (2006.01)

Patent

CA 1061352

ABSTRACT OF THE DISCLOSURE A bicycloalkane derivative of the general formula Ia (Ia) Image which are useful for the preparation of intermediates for the total synthesis of steroids, are produced by hydrogenating a compound of the general formula II Image (II) in the presence of a palladium-carbon catalyst and a lower alcohol or ketone. In the above formulae n is the integer 1 or 2; R1 is a lower alkyl group; R2 18 an alkyl, aryl or aralkyl group; and X is a free or ketalized carbonyl group or a free, esterified or etherified hydroxymethylene group.

203121

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