Hydrogenolysis of C-Se Bonds

Since the chemistry of the C-Se bond is very similar to the chemistry of the C-S bond, the deselenation procedures are also very similar to the desulfurization methods. Thus, Ra-Ni is an efficient reagent in hydrogenolytic desel-enations, but the outcome of the reaction depends on the preparation of the catalyst.426 28 

A phenylselenyl group was eliminated by deactivated Ra-Ni. Deactivatation was achieved by heating the ethanolic suspension at 60°C for 3-4 days after which the starting compound was treated with this ethanolic Ra-Ni suspension for 30 minutes.415 429 

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